/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:49:13,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:49:13,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:49:13,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:49:13,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:49:13,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:49:13,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:49:13,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:49:13,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:49:13,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:49:13,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:49:13,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:49:13,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:49:13,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:49:13,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:49:13,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:49:13,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:49:13,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:49:13,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:49:13,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:49:13,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:49:13,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:49:13,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:49:13,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:49:13,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:49:13,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:49:13,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:49:13,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:49:13,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:49:13,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:49:13,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:49:13,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:49:13,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:49:13,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:49:13,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:49:13,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:49:13,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:49:13,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:49:13,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:49:13,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:49:13,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:49:13,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 12:49:13,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:49:13,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:49:13,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:49:13,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:49:13,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:49:13,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:49:13,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:49:13,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:49:13,501 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:49:13,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:49:13,502 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:49:13,502 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:49:13,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:49:13,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:49:13,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:49:13,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:49:13,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:49:13,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:49:13,504 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:49:13,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:49:13,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:49:13,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:49:13,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:49:13,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:49:13,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:49:13,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:49:13,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:49:13,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:49:13,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:49:13,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:49:13,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:49:13,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:49:13,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:49:13,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:49:13,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:49:13,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:49:14,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:49:14,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:49:14,006 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:49:14,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2022-10-16 12:49:14,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52f53cbd/73df9adef45f43b191c4f1fe0b32c89b/FLAG74cbf7f31 [2022-10-16 12:49:15,095 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:49:15,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2022-10-16 12:49:15,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52f53cbd/73df9adef45f43b191c4f1fe0b32c89b/FLAG74cbf7f31 [2022-10-16 12:49:15,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52f53cbd/73df9adef45f43b191c4f1fe0b32c89b [2022-10-16 12:49:15,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:49:15,564 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:49:15,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:49:15,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:49:15,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:49:15,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:49:15" (1/1) ... [2022-10-16 12:49:15,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcb5c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:15, skipping insertion in model container [2022-10-16 12:49:15,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:49:15" (1/1) ... [2022-10-16 12:49:15,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:49:15,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:49:17,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i[120339,120352] [2022-10-16 12:49:17,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:49:17,251 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:49:17,541 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i[120339,120352] [2022-10-16 12:49:17,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:49:17,653 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:49:17,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17 WrapperNode [2022-10-16 12:49:17,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:49:17,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:49:17,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:49:17,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:49:17,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:17,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:17,862 INFO L138 Inliner]: procedures = 152, calls = 622, calls flagged for inlining = 41, calls inlined = 41, statements flattened = 1778 [2022-10-16 12:49:17,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:49:17,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:49:17,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:49:17,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:49:17,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:17,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:17,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:17,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:17,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:18,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:18,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:18,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:18,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:49:18,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:49:18,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:49:18,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:49:18,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (1/1) ... [2022-10-16 12:49:18,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:49:18,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:49:18,201 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) [2022-10-16 12:49:18,206 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 [2022-10-16 12:49:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-16 12:49:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-16 12:49:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_alloc_resource [2022-10-16 12:49:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_alloc_resource [2022-10-16 12:49:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure add_interval [2022-10-16 12:49:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure add_interval [2022-10-16 12:49:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:49:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure sub_interval [2022-10-16 12:49:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure sub_interval [2022-10-16 12:49:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:49:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:49:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_mem_region [2022-10-16 12:49:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_mem_region [2022-10-16 12:49:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:49:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:49:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure free_region [2022-10-16 12:49:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure free_region [2022-10-16 12:49:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:49:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:49:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:49:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure __nonstatic_adjust_io_region [2022-10-16 12:49:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __nonstatic_adjust_io_region [2022-10-16 12:49:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-10-16 12:49:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-10-16 12:49:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:49:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:49:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_release_resource_db [2022-10-16 12:49:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_release_resource_db [2022-10-16 12:49:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure do_mem_probe [2022-10-16 12:49:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure do_mem_probe [2022-10-16 12:49:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_make_resource [2022-10-16 12:49:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_make_resource [2022-10-16 12:49:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 12:49:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 12:49:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_init [2022-10-16 12:49:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_init [2022-10-16 12:49:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_io [2022-10-16 12:49:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_io [2022-10-16 12:49:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:49:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-16 12:49:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-16 12:49:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_sysfs_add_rsrc [2022-10-16 12:49:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_sysfs_add_rsrc [2022-10-16 12:49:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:49:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure static_init [2022-10-16 12:49:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure static_init [2022-10-16 12:49:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:49:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:49:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure do_validate_mem [2022-10-16 12:49:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure do_validate_mem [2022-10-16 12:49:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_resource [2022-10-16 12:49:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_resource [2022-10-16 12:49:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_nonstatic_validate_mem [2022-10-16 12:49:18,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_nonstatic_validate_mem [2022-10-16 12:49:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:49:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure static_find_io [2022-10-16 12:49:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure static_find_io [2022-10-16 12:49:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-10-16 12:49:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-10-16 12:49:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure show_mem_db [2022-10-16 12:49:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure show_mem_db [2022-10-16 12:49:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_io [2022-10-16 12:49:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_io [2022-10-16 12:49:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:49:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-10-16 12:49:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-10-16 12:49:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:49:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 12:49:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 12:49:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 12:49:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 12:49:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-16 12:49:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-16 12:49:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-10-16 12:49:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-10-16 12:49:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:49:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-10-16 12:49:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-10-16 12:49:18,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pccard_static_ops_release_6 [2022-10-16 12:49:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pccard_static_ops_release_6 [2022-10-16 12:49:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_memory [2022-10-16 12:49:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_memory [2022-10-16 12:49:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_resource [2022-10-16 12:49:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_resource [2022-10-16 12:49:18,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pccard_static_ops_release_7 [2022-10-16 12:49:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pccard_static_ops_release_7 [2022-10-16 12:49:18,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:49:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:49:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2022-10-16 12:49:18,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2022-10-16 12:49:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure claim_region [2022-10-16 12:49:18,289 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_region [2022-10-16 12:49:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2022-10-16 12:49:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2022-10-16 12:49:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure show_io_db [2022-10-16 12:49:18,291 INFO L138 BoogieDeclarations]: Found implementation of procedure show_io_db [2022-10-16 12:49:18,881 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:49:18,885 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:49:20,797 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:49:20,814 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:49:20,814 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 12:49:20,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:49:20 BoogieIcfgContainer [2022-10-16 12:49:20,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:49:20,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:49:20,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:49:20,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:49:20,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:49:15" (1/3) ... [2022-10-16 12:49:20,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec66ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:49:20, skipping insertion in model container [2022-10-16 12:49:20,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:49:17" (2/3) ... [2022-10-16 12:49:20,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec66ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:49:20, skipping insertion in model container [2022-10-16 12:49:20,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:49:20" (3/3) ... [2022-10-16 12:49:20,830 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2022-10-16 12:49:20,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:49:20,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-10-16 12:49:20,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:49:21,000 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c98861b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:49:21,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-10-16 12:49:21,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 781 states, 581 states have (on average 1.4888123924268502) internal successors, (865), 623 states have internal predecessors, (865), 123 states have call successors, (123), 42 states have call predecessors, (123), 42 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2022-10-16 12:49:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 12:49:21,021 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:21,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:21,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:49:21,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:21,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2129620663, now seen corresponding path program 1 times [2022-10-16 12:49:21,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:21,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664223014] [2022-10-16 12:49:21,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:21,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:49:21,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:21,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664223014] [2022-10-16 12:49:21,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664223014] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:21,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:21,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:49:21,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736992549] [2022-10-16 12:49:21,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:21,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:49:21,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:21,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:49:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:21,647 INFO L87 Difference]: Start difference. First operand has 781 states, 581 states have (on average 1.4888123924268502) internal successors, (865), 623 states have internal predecessors, (865), 123 states have call successors, (123), 42 states have call predecessors, (123), 42 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:21,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:21,936 INFO L93 Difference]: Finished difference Result 2290 states and 3396 transitions. [2022-10-16 12:49:21,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:49:21,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 12:49:21,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:21,969 INFO L225 Difference]: With dead ends: 2290 [2022-10-16 12:49:21,970 INFO L226 Difference]: Without dead ends: 1476 [2022-10-16 12:49:21,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:21,988 INFO L413 NwaCegarLoop]: 1203 mSDtfsCounter, 1026 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:21,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 2269 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:49:22,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2022-10-16 12:49:22,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1448. [2022-10-16 12:49:22,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1105 states have (on average 1.4633484162895927) internal successors, (1617), 1142 states have internal predecessors, (1617), 228 states have call successors, (228), 81 states have call predecessors, (228), 81 states have return successors, (228), 228 states have call predecessors, (228), 228 states have call successors, (228) [2022-10-16 12:49:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2073 transitions. [2022-10-16 12:49:22,213 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2073 transitions. Word has length 12 [2022-10-16 12:49:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:22,214 INFO L495 AbstractCegarLoop]: Abstraction has 1448 states and 2073 transitions. [2022-10-16 12:49:22,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2073 transitions. [2022-10-16 12:49:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 12:49:22,217 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:22,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:22,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:49:22,219 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:49:22,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:22,219 INFO L85 PathProgramCache]: Analyzing trace with hash -305525600, now seen corresponding path program 1 times [2022-10-16 12:49:22,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:22,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128491470] [2022-10-16 12:49:22,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:22,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:49:22,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:22,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128491470] [2022-10-16 12:49:22,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128491470] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:22,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:22,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:49:22,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780942132] [2022-10-16 12:49:22,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:22,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:49:22,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:22,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:49:22,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:22,443 INFO L87 Difference]: Start difference. First operand 1448 states and 2073 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:22,713 INFO L93 Difference]: Finished difference Result 4251 states and 6085 transitions. [2022-10-16 12:49:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:49:22,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 12:49:22,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:22,743 INFO L225 Difference]: With dead ends: 4251 [2022-10-16 12:49:22,743 INFO L226 Difference]: Without dead ends: 2806 [2022-10-16 12:49:22,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:22,760 INFO L413 NwaCegarLoop]: 1241 mSDtfsCounter, 1000 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:22,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 2283 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:49:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2022-10-16 12:49:22,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2778. [2022-10-16 12:49:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2142 states have (on average 1.4589169000933706) internal successors, (3125), 2183 states have internal predecessors, (3125), 444 states have call successors, (444), 158 states have call predecessors, (444), 158 states have return successors, (444), 444 states have call predecessors, (444), 444 states have call successors, (444) [2022-10-16 12:49:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 4013 transitions. [2022-10-16 12:49:22,992 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 4013 transitions. Word has length 14 [2022-10-16 12:49:22,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:22,995 INFO L495 AbstractCegarLoop]: Abstraction has 2778 states and 4013 transitions. [2022-10-16 12:49:22,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:22,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 4013 transitions. [2022-10-16 12:49:23,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 12:49:23,003 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:23,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:23,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:49:23,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting nonstatic_find_ioErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:49:23,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1519915469, now seen corresponding path program 1 times [2022-10-16 12:49:23,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:23,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050746480] [2022-10-16 12:49:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:23,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:49:23,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:23,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050746480] [2022-10-16 12:49:23,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050746480] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:23,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:23,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:49:23,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934459710] [2022-10-16 12:49:23,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:23,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:49:23,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:23,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:49:23,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:23,168 INFO L87 Difference]: Start difference. First operand 2778 states and 4013 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:23,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:23,608 INFO L93 Difference]: Finished difference Result 8240 states and 11881 transitions. [2022-10-16 12:49:23,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:49:23,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 12:49:23,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:23,655 INFO L225 Difference]: With dead ends: 8240 [2022-10-16 12:49:23,655 INFO L226 Difference]: Without dead ends: 5465 [2022-10-16 12:49:23,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:23,674 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 1020 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:23,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 2346 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:49:23,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5465 states. [2022-10-16 12:49:23,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5465 to 5431. [2022-10-16 12:49:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 4213 states have (on average 1.455257536197484) internal successors, (6131), 4262 states have internal predecessors, (6131), 868 states have call successors, (868), 316 states have call predecessors, (868), 316 states have return successors, (868), 868 states have call predecessors, (868), 868 states have call successors, (868) [2022-10-16 12:49:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 7867 transitions. [2022-10-16 12:49:24,035 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 7867 transitions. Word has length 23 [2022-10-16 12:49:24,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:24,036 INFO L495 AbstractCegarLoop]: Abstraction has 5431 states and 7867 transitions. [2022-10-16 12:49:24,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:24,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 7867 transitions. [2022-10-16 12:49:24,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 12:49:24,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:24,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:24,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:49:24,039 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting nonstatic_find_ioErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:49:24,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:24,040 INFO L85 PathProgramCache]: Analyzing trace with hash -524114274, now seen corresponding path program 1 times [2022-10-16 12:49:24,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:24,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421083856] [2022-10-16 12:49:24,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:24,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:49:24,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:24,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421083856] [2022-10-16 12:49:24,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421083856] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:24,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:24,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:49:24,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51348422] [2022-10-16 12:49:24,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:24,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:49:24,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:24,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:49:24,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:24,224 INFO L87 Difference]: Start difference. First operand 5431 states and 7867 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:24,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:24,747 INFO L93 Difference]: Finished difference Result 15391 states and 22259 transitions. [2022-10-16 12:49:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:49:24,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 12:49:24,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:24,890 INFO L225 Difference]: With dead ends: 15391 [2022-10-16 12:49:24,890 INFO L226 Difference]: Without dead ends: 9963 [2022-10-16 12:49:24,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:24,918 INFO L413 NwaCegarLoop]: 1818 mSDtfsCounter, 1018 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:24,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 2866 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:49:24,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9963 states. [2022-10-16 12:49:25,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9963 to 9929. [2022-10-16 12:49:25,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9929 states, 7703 states have (on average 1.4512527586654551) internal successors, (11179), 7768 states have internal predecessors, (11179), 1604 states have call successors, (1604), 588 states have call predecessors, (1604), 588 states have return successors, (1604), 1604 states have call predecessors, (1604), 1604 states have call successors, (1604) [2022-10-16 12:49:25,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9929 states to 9929 states and 14387 transitions. [2022-10-16 12:49:25,620 INFO L78 Accepts]: Start accepts. Automaton has 9929 states and 14387 transitions. Word has length 25 [2022-10-16 12:49:25,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:25,621 INFO L495 AbstractCegarLoop]: Abstraction has 9929 states and 14387 transitions. [2022-10-16 12:49:25,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:25,622 INFO L276 IsEmpty]: Start isEmpty. Operand 9929 states and 14387 transitions. [2022-10-16 12:49:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 12:49:25,624 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:25,624 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:49:25,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:49:25,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:49:25,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:25,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1648657548, now seen corresponding path program 1 times [2022-10-16 12:49:25,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:25,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375680014] [2022-10-16 12:49:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:25,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:49:25,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:25,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375680014] [2022-10-16 12:49:25,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375680014] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:25,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:25,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:49:25,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613636727] [2022-10-16 12:49:25,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:25,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:49:25,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:25,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:49:25,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:25,826 INFO L87 Difference]: Start difference. First operand 9929 states and 14387 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:26,696 INFO L93 Difference]: Finished difference Result 19855 states and 28771 transitions. [2022-10-16 12:49:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:49:26,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 12:49:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:26,853 INFO L225 Difference]: With dead ends: 19855 [2022-10-16 12:49:26,853 INFO L226 Difference]: Without dead ends: 19843 [2022-10-16 12:49:26,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:26,867 INFO L413 NwaCegarLoop]: 1176 mSDtfsCounter, 1026 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:26,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 2217 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:49:26,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19843 states. [2022-10-16 12:49:27,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19843 to 19821. [2022-10-16 12:49:28,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19821 states, 15403 states have (on average 1.4451080958254885) internal successors, (22259), 15500 states have internal predecessors, (22259), 3208 states have call successors, (3208), 1176 states have call predecessors, (3208), 1176 states have return successors, (3208), 3208 states have call predecessors, (3208), 3208 states have call successors, (3208) [2022-10-16 12:49:28,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19821 states to 19821 states and 28675 transitions. [2022-10-16 12:49:28,264 INFO L78 Accepts]: Start accepts. Automaton has 19821 states and 28675 transitions. Word has length 28 [2022-10-16 12:49:28,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:28,265 INFO L495 AbstractCegarLoop]: Abstraction has 19821 states and 28675 transitions. [2022-10-16 12:49:28,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:49:28,266 INFO L276 IsEmpty]: Start isEmpty. Operand 19821 states and 28675 transitions. [2022-10-16 12:49:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 12:49:28,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:28,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:28,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:49:28,271 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting show_io_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:49:28,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:28,272 INFO L85 PathProgramCache]: Analyzing trace with hash -73785815, now seen corresponding path program 1 times [2022-10-16 12:49:28,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:28,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872124332] [2022-10-16 12:49:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:28,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 12:49:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:28,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 12:49:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:28,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 12:49:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:49:28,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:28,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872124332] [2022-10-16 12:49:28,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872124332] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:28,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:28,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:49:28,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927052681] [2022-10-16 12:49:28,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:28,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:49:28,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:28,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:49:28,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:49:28,465 INFO L87 Difference]: Start difference. First operand 19821 states and 28675 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 12:49:34,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:34,561 INFO L93 Difference]: Finished difference Result 75281 states and 112075 transitions. [2022-10-16 12:49:34,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:49:34,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2022-10-16 12:49:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:35,261 INFO L225 Difference]: With dead ends: 75281 [2022-10-16 12:49:35,262 INFO L226 Difference]: Without dead ends: 55463 [2022-10-16 12:49:35,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:49:35,401 INFO L413 NwaCegarLoop]: 1637 mSDtfsCounter, 2576 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 3712 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 907 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:35,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2701 Valid, 3712 Invalid, 2320 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [907 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-16 12:49:35,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55463 states. [2022-10-16 12:49:38,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55463 to 38637. [2022-10-16 12:49:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38637 states, 30083 states have (on average 1.4422431273476715) internal successors, (43387), 30244 states have internal predecessors, (43387), 6176 states have call successors, (6176), 2344 states have call predecessors, (6176), 2344 states have return successors, (6176), 6176 states have call predecessors, (6176), 6176 states have call successors, (6176) [2022-10-16 12:49:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38637 states to 38637 states and 55739 transitions. [2022-10-16 12:49:38,948 INFO L78 Accepts]: Start accepts. Automaton has 38637 states and 55739 transitions. Word has length 37 [2022-10-16 12:49:38,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:38,949 INFO L495 AbstractCegarLoop]: Abstraction has 38637 states and 55739 transitions. [2022-10-16 12:49:38,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 12:49:38,951 INFO L276 IsEmpty]: Start isEmpty. Operand 38637 states and 55739 transitions. [2022-10-16 12:49:38,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 12:49:38,957 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:38,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:38,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:49:38,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:49:38,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:38,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1358958348, now seen corresponding path program 1 times [2022-10-16 12:49:38,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:38,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474412722] [2022-10-16 12:49:38,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:38,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:39,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:49:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 12:49:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 12:49:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:39,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:49:39,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:39,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474412722] [2022-10-16 12:49:39,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474412722] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:39,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:39,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:49:39,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640931473] [2022-10-16 12:49:39,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:39,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:49:39,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:39,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:49:39,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:49:39,125 INFO L87 Difference]: Start difference. First operand 38637 states and 55739 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 12:49:47,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:47,511 INFO L93 Difference]: Finished difference Result 141177 states and 209515 transitions. [2022-10-16 12:49:47,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:49:47,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2022-10-16 12:49:47,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:48,551 INFO L225 Difference]: With dead ends: 141177 [2022-10-16 12:49:48,555 INFO L226 Difference]: Without dead ends: 102543 [2022-10-16 12:49:48,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:49:48,734 INFO L413 NwaCegarLoop]: 1947 mSDtfsCounter, 2234 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 779 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2356 SdHoareTripleChecker+Valid, 4262 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 779 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:48,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2356 Valid, 4262 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [779 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-16 12:49:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102543 states. [2022-10-16 12:49:53,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102543 to 71525. [2022-10-16 12:49:54,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71525 states, 55939 states have (on average 1.4420529505354047) internal successors, (80667), 56196 states have internal predecessors, (80667), 11144 states have call successors, (11144), 4408 states have call predecessors, (11144), 4408 states have return successors, (11144), 11144 states have call predecessors, (11144), 11144 states have call successors, (11144) [2022-10-16 12:49:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71525 states to 71525 states and 102955 transitions. [2022-10-16 12:49:54,573 INFO L78 Accepts]: Start accepts. Automaton has 71525 states and 102955 transitions. Word has length 39 [2022-10-16 12:49:54,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:54,575 INFO L495 AbstractCegarLoop]: Abstraction has 71525 states and 102955 transitions. [2022-10-16 12:49:54,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 12:49:54,576 INFO L276 IsEmpty]: Start isEmpty. Operand 71525 states and 102955 transitions. [2022-10-16 12:49:54,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 12:49:54,586 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:54,587 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:49:54,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:49:54,587 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting nonstatic_find_ioErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:49:54,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:54,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1001238210, now seen corresponding path program 1 times [2022-10-16 12:49:54,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:54,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924367483] [2022-10-16 12:49:54,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:54,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:49:54,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:54,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924367483] [2022-10-16 12:49:54,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924367483] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:54,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:54,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:49:54,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814806673] [2022-10-16 12:49:54,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:54,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:49:54,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:54,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:49:54,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:49:54,728 INFO L87 Difference]: Start difference. First operand 71525 states and 102955 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:50:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:50:00,176 INFO L93 Difference]: Finished difference Result 148231 states and 214611 transitions. [2022-10-16 12:50:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:50:00,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 12:50:00,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:50:00,895 INFO L225 Difference]: With dead ends: 148231 [2022-10-16 12:50:00,896 INFO L226 Difference]: Without dead ends: 76709 [2022-10-16 12:50:01,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:50:01,120 INFO L413 NwaCegarLoop]: 1073 mSDtfsCounter, 55 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:50:01,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 2120 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:50:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76709 states. [2022-10-16 12:50:04,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76709 to 74885. [2022-10-16 12:50:04,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74885 states, 58723 states have (on average 1.4439827665480305) internal successors, (84795), 58980 states have internal predecessors, (84795), 11720 states have call successors, (11720), 4408 states have call predecessors, (11720), 4408 states have return successors, (11720), 11720 states have call predecessors, (11720), 11720 states have call successors, (11720) [2022-10-16 12:50:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74885 states to 74885 states and 108235 transitions. [2022-10-16 12:50:05,471 INFO L78 Accepts]: Start accepts. Automaton has 74885 states and 108235 transitions. Word has length 39 [2022-10-16 12:50:05,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:50:05,472 INFO L495 AbstractCegarLoop]: Abstraction has 74885 states and 108235 transitions. [2022-10-16 12:50:05,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:50:05,472 INFO L276 IsEmpty]: Start isEmpty. Operand 74885 states and 108235 transitions. [2022-10-16 12:50:05,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 12:50:05,483 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:50:05,483 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:50:05,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:50:05,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:50:05,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:50:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1811686210, now seen corresponding path program 1 times [2022-10-16 12:50:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:50:05,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551355781] [2022-10-16 12:50:05,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:50:05,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:50:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:50:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:05,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:50:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:50:05,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:50:05,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551355781] [2022-10-16 12:50:05,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551355781] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:50:05,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:50:05,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:50:05,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643872747] [2022-10-16 12:50:05,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:50:05,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:50:05,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:50:05,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:50:05,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:50:05,628 INFO L87 Difference]: Start difference. First operand 74885 states and 108235 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:50:09,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:50:09,942 INFO L93 Difference]: Finished difference Result 149744 states and 216809 transitions. [2022-10-16 12:50:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:50:09,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-10-16 12:50:09,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:50:10,773 INFO L225 Difference]: With dead ends: 149744 [2022-10-16 12:50:10,773 INFO L226 Difference]: Without dead ends: 74862 [2022-10-16 12:50:11,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:50:11,027 INFO L413 NwaCegarLoop]: 1258 mSDtfsCounter, 1025 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:50:11,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 2291 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 12:50:11,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74862 states. [2022-10-16 12:50:14,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74862 to 74834. [2022-10-16 12:50:14,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74834 states, 58857 states have (on average 1.4431078716210477) internal successors, (84937), 59114 states have internal predecessors, (84937), 11564 states have call successors, (11564), 4379 states have call predecessors, (11564), 4379 states have return successors, (11564), 11564 states have call predecessors, (11564), 11564 states have call successors, (11564) [2022-10-16 12:50:15,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74834 states to 74834 states and 108065 transitions. [2022-10-16 12:50:15,162 INFO L78 Accepts]: Start accepts. Automaton has 74834 states and 108065 transitions. Word has length 41 [2022-10-16 12:50:15,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:50:15,163 INFO L495 AbstractCegarLoop]: Abstraction has 74834 states and 108065 transitions. [2022-10-16 12:50:15,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:50:15,163 INFO L276 IsEmpty]: Start isEmpty. Operand 74834 states and 108065 transitions. [2022-10-16 12:50:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 12:50:15,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:50:15,170 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-16 12:50:15,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 12:50:15,170 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:50:15,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:50:15,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1544935294, now seen corresponding path program 1 times [2022-10-16 12:50:15,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:50:15,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385247954] [2022-10-16 12:50:15,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:50:15,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:50:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:50:15,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:50:15,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385247954] [2022-10-16 12:50:15,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385247954] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:50:15,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:50:15,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:50:15,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175861690] [2022-10-16 12:50:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:50:15,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:50:15,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:50:15,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:50:15,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:50:15,286 INFO L87 Difference]: Start difference. First operand 74834 states and 108065 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:50:19,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:50:19,563 INFO L93 Difference]: Finished difference Result 149568 states and 216265 transitions. [2022-10-16 12:50:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:50:19,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 12:50:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:50:20,128 INFO L225 Difference]: With dead ends: 149568 [2022-10-16 12:50:20,129 INFO L226 Difference]: Without dead ends: 93534 [2022-10-16 12:50:20,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:50:20,335 INFO L413 NwaCegarLoop]: 2074 mSDtfsCounter, 1027 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:50:20,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 3105 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:50:20,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93534 states. [2022-10-16 12:50:24,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93534 to 93506. [2022-10-16 12:50:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93506 states, 73577 states have (on average 1.442284953178303) internal successors, (106119), 73890 states have internal predecessors, (106119), 14398 states have call successors, (14398), 5497 states have call predecessors, (14398), 5497 states have return successors, (14398), 14398 states have call predecessors, (14398), 14398 states have call successors, (14398) [2022-10-16 12:50:25,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93506 states to 93506 states and 134915 transitions. [2022-10-16 12:50:25,437 INFO L78 Accepts]: Start accepts. Automaton has 93506 states and 134915 transitions. Word has length 39 [2022-10-16 12:50:25,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:50:25,438 INFO L495 AbstractCegarLoop]: Abstraction has 93506 states and 134915 transitions. [2022-10-16 12:50:25,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:50:25,438 INFO L276 IsEmpty]: Start isEmpty. Operand 93506 states and 134915 transitions. [2022-10-16 12:50:25,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 12:50:25,447 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:50:25,447 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-16 12:50:25,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 12:50:25,448 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:50:25,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:50:25,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1063601767, now seen corresponding path program 1 times [2022-10-16 12:50:25,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:50:25,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409127453] [2022-10-16 12:50:25,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:50:25,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:50:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:25,595 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:50:25,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:50:25,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409127453] [2022-10-16 12:50:25,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409127453] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:50:25,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303680740] [2022-10-16 12:50:25,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:50:25,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:50:25,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:50:25,601 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) [2022-10-16 12:50:25,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:50:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:25,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:50:25,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:50:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:50:26,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:50:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:50:26,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303680740] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:50:26,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:50:26,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 12:50:26,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729738236] [2022-10-16 12:50:26,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:50:26,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:50:26,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:50:26,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:50:26,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:50:26,126 INFO L87 Difference]: Start difference. First operand 93506 states and 134915 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:50:44,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:50:44,673 INFO L93 Difference]: Finished difference Result 392214 states and 566499 transitions. [2022-10-16 12:50:44,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:50:44,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 12:50:44,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:50:47,126 INFO L225 Difference]: With dead ends: 392214 [2022-10-16 12:50:47,129 INFO L226 Difference]: Without dead ends: 392208 [2022-10-16 12:50:47,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:50:47,294 INFO L413 NwaCegarLoop]: 1654 mSDtfsCounter, 7497 mSDsluCounter, 4386 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 895 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7497 SdHoareTripleChecker+Valid, 6040 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 895 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:50:47,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7497 Valid, 6040 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [895 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-16 12:50:47,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392208 states. [2022-10-16 12:51:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392208 to 389666. [2022-10-16 12:51:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389666 states, 306633 states have (on average 1.4419550407164266) internal successors, (442151), 307842 states have internal predecessors, (442151), 60126 states have call successors, (60126), 22873 states have call predecessors, (60126), 22873 states have return successors, (60126), 60126 states have call predecessors, (60126), 60126 states have call successors, (60126) [2022-10-16 12:51:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389666 states to 389666 states and 562403 transitions. [2022-10-16 12:51:11,978 INFO L78 Accepts]: Start accepts. Automaton has 389666 states and 562403 transitions. Word has length 41 [2022-10-16 12:51:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:51:11,978 INFO L495 AbstractCegarLoop]: Abstraction has 389666 states and 562403 transitions. [2022-10-16 12:51:11,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 389666 states and 562403 transitions. [2022-10-16 12:51:11,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 12:51:11,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:51:11,987 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-10-16 12:51:12,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 12:51:12,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 12:51:12,188 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [do_validate_memErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, do_validate_memErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, show_mem_dbErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 12:51:12,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:51:12,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1388085008, now seen corresponding path program 1 times [2022-10-16 12:51:12,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:51:12,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160516548] [2022-10-16 12:51:12,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:12,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:51:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:51:12,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:51:12,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160516548] [2022-10-16 12:51:12,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160516548] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:51:12,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911494283] [2022-10-16 12:51:12,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:12,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:51:12,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:51:12,360 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) [2022-10-16 12:51:12,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:51:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:12,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:51:12,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:51:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:51:12,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:51:12,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911494283] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:51:12,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:51:12,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 12:51:12,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030731732] [2022-10-16 12:51:12,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:51:12,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:51:12,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:51:12,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:51:12,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:51:12,711 INFO L87 Difference]: Start difference. First operand 389666 states and 562403 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:52:02,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:52:02,210 INFO L93 Difference]: Finished difference Result 911108 states and 1314907 transitions. [2022-10-16 12:52:02,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:52:02,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-16 12:52:02,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:52:09,501 INFO L225 Difference]: With dead ends: 911108 [2022-10-16 12:52:09,501 INFO L226 Difference]: Without dead ends: 911102 [2022-10-16 12:52:09,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:52:09,918 INFO L413 NwaCegarLoop]: 2189 mSDtfsCounter, 2095 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 4038 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:52:09,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 4038 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 12:52:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911102 states.