/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--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:46:35,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:46:35,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:46:35,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:46:35,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:46:35,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:46:35,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:46:35,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:46:35,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:46:35,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:46:35,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:46:35,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:46:35,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:46:35,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:46:35,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:46:35,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:46:35,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:46:35,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:46:35,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:46:35,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:46:35,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:46:35,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:46:35,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:46:35,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:46:35,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:46:35,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:46:35,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:46:35,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:46:35,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:46:35,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:46:35,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:46:35,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:46:35,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:46:35,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:46:35,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:46:35,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:46:35,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:46:35,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:46:35,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:46:35,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:46:35,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:46:35,298 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 12:46:35,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:46:35,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:46:35,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:46:35,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:46:35,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:46:35,351 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:46:35,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:46:35,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:46:35,353 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:46:35,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:46:35,355 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:46:35,355 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:46:35,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:46:35,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:46:35,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:46:35,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:46:35,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:46:35,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:46:35,356 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:46:35,356 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:46:35,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:46:35,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:46:35,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:46:35,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:46:35,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:46:35,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:46:35,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:46:35,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:46:35,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:46:35,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:46:35,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:46:35,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:46:35,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:46:35,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:46:35,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:46:35,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:46:35,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:46:35,759 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:46:35,760 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:46:35,761 INFO L432 ainManager$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--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i [2022-10-16 12:46:35,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96efb2ffc/383fa8e4c24546389caa5d51a3c12350/FLAGf9402dfae [2022-10-16 12:46:37,112 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:46:37,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i [2022-10-16 12:46:37,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96efb2ffc/383fa8e4c24546389caa5d51a3c12350/FLAGf9402dfae [2022-10-16 12:46:37,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96efb2ffc/383fa8e4c24546389caa5d51a3c12350 [2022-10-16 12:46:37,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:46:37,315 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:46:37,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:46:37,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:46:37,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:46:37,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:46:37" (1/1) ... [2022-10-16 12:46:37,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b1e108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:37, skipping insertion in model container [2022-10-16 12:46:37,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:46:37" (1/1) ... [2022-10-16 12:46:37,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:46:37,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:46:41,490 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:41,495 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:41,496 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:42,534 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:42,542 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:42,545 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:42,552 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:45,785 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--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i[741742,741755] [2022-10-16 12:46:46,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:46:46,161 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:46:46,642 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:46,644 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:46,645 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:46,872 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:46,884 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:46,891 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:46,906 WARN L1550 CHandler]: Possible shadowing of function abort [2022-10-16 12:46:47,294 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--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i[741742,741755] [2022-10-16 12:46:47,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:46:47,604 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:46:47,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47 WrapperNode [2022-10-16 12:46:47,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:46:47,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:46:47,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:46:47,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:46:47,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:47,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,295 INFO L138 Inliner]: procedures = 661, calls = 10640, calls flagged for inlining = 235, calls inlined = 88, statements flattened = 5910 [2022-10-16 12:46:48,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:46:48,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:46:48,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:46:48,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:46:48,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:46:48,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:46:48,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:46:48,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:46:48,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (1/1) ... [2022-10-16 12:46:48,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:46:48,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:46:48,724 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 12:46:48,744 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 12:46:48,783 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-10-16 12:46:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-10-16 12:46:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_rdev_close [2022-10-16 12:46:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_rdev_close [2022-10-16 12:46:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_device [2022-10-16 12:46:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_device [2022-10-16 12:46:48,784 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2022-10-16 12:46:48,784 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2022-10-16 12:46:48,785 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_poll_cq_one [2022-10-16 12:46:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_poll_cq_one [2022-10-16 12:46:48,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:46:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:46:48,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_dev_mutex [2022-10-16 12:46:48,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_dev_mutex [2022-10-16 12:46:48,785 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_num_stags [2022-10-16 12:46:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_num_stags [2022-10-16 12:46:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure gen_pool_create [2022-10-16 12:46:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure gen_pool_create [2022-10-16 12:46:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_init_ucontext [2022-10-16 12:46:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_init_ucontext [2022-10-16 12:46:48,786 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 12:46:48,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 12:46:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure t3_register_cpl_handler [2022-10-16 12:46:48,787 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_register_cpl_handler [2022-10-16 12:46:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2022-10-16 12:46:48,787 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2022-10-16 12:46:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 12:46:48,787 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 12:46:48,787 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_hal_destroy_resource [2022-10-16 12:46:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_hal_destroy_resource [2022-10-16 12:46:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:46:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure __cxio_init_resource_fifo [2022-10-16 12:46:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __cxio_init_resource_fifo [2022-10-16 12:46:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-16 12:46:48,788 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-16 12:46:48,788 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 12:46:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 12:46:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_dev_mutex [2022-10-16 12:46:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_dev_mutex [2022-10-16 12:46:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-10-16 12:46:48,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-10-16 12:46:48,789 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_hal_pblpool_free [2022-10-16 12:46:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_hal_pblpool_free [2022-10-16 12:46:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_cxgb3_ofld_send [2022-10-16 12:46:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_cxgb3_ofld_send [2022-10-16 12:46:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure ib_unregister_device [2022-10-16 12:46:48,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_unregister_device [2022-10-16 12:46:48,790 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-16 12:46:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-16 12:46:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2022-10-16 12:46:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2022-10-16 12:46:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 12:46:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-16 12:46:48,791 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-16 12:46:48,791 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 12:46:48,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-16 12:46:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:46:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:46:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 12:46:48,792 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 12:46:48,792 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-16 12:46:48,792 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-16 12:46:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_hal_destroy_ctrl_qp [2022-10-16 12:46:48,793 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_hal_destroy_ctrl_qp [2022-10-16 12:46:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2022-10-16 12:46:48,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2022-10-16 12:46:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dbs [2022-10-16 12:46:48,793 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dbs [2022-10-16 12:46:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:46:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:46:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:46:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 12:46:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-16 12:46:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-16 12:46:48,794 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_event_handler [2022-10-16 12:46:48,794 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_event_handler [2022-10-16 12:46:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-16 12:46:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-16 12:46:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-16 12:46:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-16 12:46:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2022-10-16 12:46:48,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2022-10-16 12:46:48,795 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2022-10-16 12:46:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2022-10-16 12:46:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-16 12:46:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-16 12:46:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_net [2022-10-16 12:46:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_net [2022-10-16 12:46:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure gen_pool_free [2022-10-16 12:46:48,796 INFO L138 BoogieDeclarations]: Found implementation of procedure gen_pool_free [2022-10-16 12:46:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure iwch_poll_cq [2022-10-16 12:46:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure iwch_poll_cq [2022-10-16 12:46:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:46:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:46:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-16 12:46:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-16 12:46:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 12:46:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 12:46:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dbs [2022-10-16 12:46:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dbs [2022-10-16 12:46:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure t3a_device [2022-10-16 12:46:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure t3a_device [2022-10-16 12:46:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_next_cqe [2022-10-16 12:46:48,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_next_cqe [2022-10-16 12:46:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-16 12:46:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure close_rnic_dev [2022-10-16 12:46:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure close_rnic_dev [2022-10-16 12:46:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:46:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:46:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:46:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:46:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 12:46:48,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 12:46:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_fatal_error [2022-10-16 12:46:48,800 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_fatal_error [2022-10-16 12:46:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-16 12:46:48,800 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-16 12:46:48,800 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2022-10-16 12:46:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2022-10-16 12:46:48,801 INFO L130 BoogieDeclarations]: Found specification of procedure prandom_u32 [2022-10-16 12:46:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure prandom_u32 [2022-10-16 12:46:48,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:46:48,801 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 12:46:48,801 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 12:46:48,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:46:48,802 INFO L130 BoogieDeclarations]: Found specification of procedure open_rnic_dev [2022-10-16 12:46:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure open_rnic_dev [2022-10-16 12:46:48,802 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_hal_cq_op [2022-10-16 12:46:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_hal_cq_op [2022-10-16 12:46:48,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:46:48,802 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-10-16 12:46:48,802 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-10-16 12:46:48,803 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-16 12:46:48,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-16 12:46:48,803 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-16 12:46:48,803 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-16 12:46:48,803 INFO L130 BoogieDeclarations]: Found specification of procedure cxgb3_ofld_send [2022-10-16 12:46:48,803 INFO L138 BoogieDeclarations]: Found implementation of procedure cxgb3_ofld_send [2022-10-16 12:46:48,803 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2022-10-16 12:46:48,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2022-10-16 12:46:48,804 INFO L130 BoogieDeclarations]: Found specification of procedure to_iwch_cq [2022-10-16 12:46:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure to_iwch_cq [2022-10-16 12:46:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure idr_for_each [2022-10-16 12:46:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_for_each [2022-10-16 12:46:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-10-16 12:46:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-10-16 12:46:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out_r [2022-10-16 12:46:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out_r [2022-10-16 12:46:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:46:48,924 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:46:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure gen_pool_destroy [2022-10-16 12:46:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure gen_pool_destroy [2022-10-16 12:46:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:46:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure get_qhp [2022-10-16 12:46:48,925 INFO L138 BoogieDeclarations]: Found implementation of procedure get_qhp [2022-10-16 12:46:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-16 12:46:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-16 12:46:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 12:46:48,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 12:46:48,926 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_init_resource_fifo [2022-10-16 12:46:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_init_resource_fifo [2022-10-16 12:46:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure __ilog2_u32 [2022-10-16 12:46:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __ilog2_u32 [2022-10-16 12:46:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2022-10-16 12:46:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2022-10-16 12:46:48,927 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-10-16 12:46:48,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-10-16 12:46:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure cxio_hal_pblpool_destroy [2022-10-16 12:46:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure cxio_hal_pblpool_destroy [2022-10-16 12:46:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure gen_pool_add [2022-10-16 12:46:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure gen_pool_add [2022-10-16 12:46:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure build_fw_riwrh [2022-10-16 12:46:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure build_fw_riwrh [2022-10-16 12:46:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-10-16 12:46:48,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-10-16 12:46:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-10-16 12:46:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-10-16 12:46:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-16 12:46:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-16 12:46:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-10-16 12:46:48,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-10-16 12:46:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:46:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-10-16 12:46:49,676 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:46:49,682 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:47:09,518 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:47:09,537 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:47:09,538 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 12:47:09,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:47:09 BoogieIcfgContainer [2022-10-16 12:47:09,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:47:09,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:47:09,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:47:09,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:47:09,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:46:37" (1/3) ... [2022-10-16 12:47:09,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54962b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:47:09, skipping insertion in model container [2022-10-16 12:47:09,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:47" (2/3) ... [2022-10-16 12:47:09,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54962b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:47:09, skipping insertion in model container [2022-10-16 12:47:09,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:47:09" (3/3) ... [2022-10-16 12:47:09,552 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw-cxgb3--iw_cxgb3.ko-main.cil.out.i [2022-10-16 12:47:09,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:47:09,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2022-10-16 12:47:09,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:47:09,676 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;@6f8f4150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:47:09,676 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-10-16 12:47:09,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 1402 states, 1005 states have (on average 1.3741293532338308) internal successors, (1381), 1063 states have internal predecessors, (1381), 276 states have call successors, (276), 82 states have call predecessors, (276), 82 states have return successors, (276), 275 states have call predecessors, (276), 276 states have call successors, (276) [2022-10-16 12:47:09,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 12:47:09,704 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:09,704 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] [2022-10-16 12:47:09,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:47:09,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:09,712 INFO L85 PathProgramCache]: Analyzing trace with hash 854582973, now seen corresponding path program 1 times [2022-10-16 12:47:09,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:09,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651897372] [2022-10-16 12:47:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:09,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:47:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,278 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 12:47:11,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:11,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651897372] [2022-10-16 12:47:11,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651897372] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:11,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:11,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:47:11,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248466152] [2022-10-16 12:47:11,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:11,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:47:11,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:11,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:47:11,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:11,337 INFO L87 Difference]: Start difference. First operand has 1402 states, 1005 states have (on average 1.3741293532338308) internal successors, (1381), 1063 states have internal predecessors, (1381), 276 states have call successors, (276), 82 states have call predecessors, (276), 82 states have return successors, (276), 275 states have call predecessors, (276), 276 states have call successors, (276) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 12:47:15,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:17,152 INFO L93 Difference]: Finished difference Result 3242 states and 4492 transitions. [2022-10-16 12:47:17,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:47:17,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-10-16 12:47:17,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:17,191 INFO L225 Difference]: With dead ends: 3242 [2022-10-16 12:47:17,192 INFO L226 Difference]: Without dead ends: 1790 [2022-10-16 12:47:17,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:47:17,212 INFO L413 NwaCegarLoop]: 1874 mSDtfsCounter, 1200 mSDsluCounter, 2326 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 860 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 4200 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 860 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:17,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 4200 Invalid, 1982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [860 Valid, 1121 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-10-16 12:47:17,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2022-10-16 12:47:17,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1708. [2022-10-16 12:47:17,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1225 states have (on average 1.3216326530612246) internal successors, (1619), 1273 states have internal predecessors, (1619), 329 states have call successors, (329), 119 states have call predecessors, (329), 119 states have return successors, (329), 328 states have call predecessors, (329), 329 states have call successors, (329) [2022-10-16 12:47:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2277 transitions. [2022-10-16 12:47:17,478 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2277 transitions. Word has length 32 [2022-10-16 12:47:17,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:17,479 INFO L495 AbstractCegarLoop]: Abstraction has 1708 states and 2277 transitions. [2022-10-16 12:47:17,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 12:47:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2277 transitions. [2022-10-16 12:47:17,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 12:47:17,486 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:17,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:17,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:47:17,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:47:17,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash 470669131, now seen corresponding path program 1 times [2022-10-16 12:47:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:17,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177238592] [2022-10-16 12:47:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:17,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:47:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:47:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:47:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:47:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 12:47:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:18,946 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 12:47:18,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:18,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177238592] [2022-10-16 12:47:18,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177238592] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:18,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:18,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:47:18,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488367626] [2022-10-16 12:47:18,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:18,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:47:18,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:18,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:47:18,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:18,951 INFO L87 Difference]: Start difference. First operand 1708 states and 2277 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:47:24,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:26,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:28,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:33,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:35,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:39,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:41,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:43,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:43,865 INFO L93 Difference]: Finished difference Result 3360 states and 4540 transitions. [2022-10-16 12:47:43,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:47:43,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2022-10-16 12:47:43,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:43,898 INFO L225 Difference]: With dead ends: 3360 [2022-10-16 12:47:43,898 INFO L226 Difference]: Without dead ends: 3356 [2022-10-16 12:47:43,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:47:43,902 INFO L413 NwaCegarLoop]: 2248 mSDtfsCounter, 2217 mSDsluCounter, 3340 mSDsCounter, 0 mSdLazyCounter, 3910 mSolverCounterSat, 668 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 5588 SdHoareTripleChecker+Invalid, 4583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 3910 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:43,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2466 Valid, 5588 Invalid, 4583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [668 Valid, 3910 Invalid, 5 Unknown, 0 Unchecked, 24.2s Time] [2022-10-16 12:47:43,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2022-10-16 12:47:44,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 3190. [2022-10-16 12:47:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3190 states, 2320 states have (on average 1.330603448275862) internal successors, (3087), 2380 states have internal predecessors, (3087), 620 states have call successors, (620), 215 states have call predecessors, (620), 215 states have return successors, (620), 618 states have call predecessors, (620), 620 states have call successors, (620) [2022-10-16 12:47:44,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 4327 transitions. [2022-10-16 12:47:44,186 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 4327 transitions. Word has length 77 [2022-10-16 12:47:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:44,187 INFO L495 AbstractCegarLoop]: Abstraction has 3190 states and 4327 transitions. [2022-10-16 12:47:44,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:47:44,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 4327 transitions. [2022-10-16 12:47:44,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-16 12:47:44,196 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:44,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:44,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:47:44,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting close_rnic_devErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:47:44,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash -305888825, now seen corresponding path program 1 times [2022-10-16 12:47:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:44,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865733934] [2022-10-16 12:47:44,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:47:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:47:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:47:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:47:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 12:47:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:47:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 12:47:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:47:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 12:47:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:47:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:45,421 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 12:47:45,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:45,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865733934] [2022-10-16 12:47:45,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865733934] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:45,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:45,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:47:45,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967477405] [2022-10-16 12:47:45,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:45,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:47:45,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:45,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:47:45,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:45,435 INFO L87 Difference]: Start difference. First operand 3190 states and 4327 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:47:49,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:53,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:56,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:56,027 INFO L93 Difference]: Finished difference Result 7150 states and 9626 transitions. [2022-10-16 12:47:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:47:56,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2022-10-16 12:47:56,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:56,056 INFO L225 Difference]: With dead ends: 7150 [2022-10-16 12:47:56,057 INFO L226 Difference]: Without dead ends: 3963 [2022-10-16 12:47:56,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:47:56,071 INFO L413 NwaCegarLoop]: 2046 mSDtfsCounter, 2661 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 1217 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2824 SdHoareTripleChecker+Valid, 3179 SdHoareTripleChecker+Invalid, 3271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1217 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:56,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2824 Valid, 3179 Invalid, 3271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1217 Valid, 2052 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2022-10-16 12:47:56,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3963 states. [2022-10-16 12:47:56,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3963 to 3649. [2022-10-16 12:47:56,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3649 states, 2641 states have (on average 1.3138962514199166) internal successors, (3470), 2707 states have internal predecessors, (3470), 704 states have call successors, (704), 269 states have call predecessors, (704), 269 states have return successors, (704), 700 states have call predecessors, (704), 704 states have call successors, (704) [2022-10-16 12:47:56,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3649 states to 3649 states and 4878 transitions. [2022-10-16 12:47:56,375 INFO L78 Accepts]: Start accepts. Automaton has 3649 states and 4878 transitions. Word has length 98 [2022-10-16 12:47:56,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:56,378 INFO L495 AbstractCegarLoop]: Abstraction has 3649 states and 4878 transitions. [2022-10-16 12:47:56,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:47:56,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 4878 transitions. [2022-10-16 12:47:56,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 12:47:56,386 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:56,387 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:47:56,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:47:56,387 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting build_fw_riwrhErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:47:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash 747485431, now seen corresponding path program 1 times [2022-10-16 12:47:56,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:56,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896523982] [2022-10-16 12:47:56,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:56,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:47:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-16 12:47:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 12:47:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:47:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:47:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:47:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:47:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 12:47:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 12:47:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 12:47:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 12:47:57,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:57,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896523982] [2022-10-16 12:47:57,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896523982] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:57,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:57,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:47:57,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215242848] [2022-10-16 12:47:57,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:57,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:47:57,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:57,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:47:57,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:57,769 INFO L87 Difference]: Start difference. First operand 3649 states and 4878 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:48:02,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:04,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:06,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:08,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:13,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:15,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:18,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:21,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:21,380 INFO L93 Difference]: Finished difference Result 10558 states and 14255 transitions. [2022-10-16 12:48:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:48:21,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 112 [2022-10-16 12:48:21,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:21,429 INFO L225 Difference]: With dead ends: 10558 [2022-10-16 12:48:21,429 INFO L226 Difference]: Without dead ends: 6912 [2022-10-16 12:48:21,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:48:21,447 INFO L413 NwaCegarLoop]: 3354 mSDtfsCounter, 1948 mSDsluCounter, 6004 mSDsCounter, 0 mSdLazyCounter, 3411 mSolverCounterSat, 512 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 9358 SdHoareTripleChecker+Invalid, 3927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 3411 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:21,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 9358 Invalid, 3927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 3411 Invalid, 4 Unknown, 0 Unchecked, 23.0s Time] [2022-10-16 12:48:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6912 states. [2022-10-16 12:48:22,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6912 to 6550. [2022-10-16 12:48:22,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6550 states, 4765 states have (on average 1.3233997901364114) internal successors, (6306), 4859 states have internal predecessors, (6306), 1282 states have call successors, (1282), 468 states have call predecessors, (1282), 468 states have return successors, (1282), 1276 states have call predecessors, (1282), 1282 states have call successors, (1282) [2022-10-16 12:48:22,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6550 states to 6550 states and 8870 transitions. [2022-10-16 12:48:22,093 INFO L78 Accepts]: Start accepts. Automaton has 6550 states and 8870 transitions. Word has length 112 [2022-10-16 12:48:22,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:22,094 INFO L495 AbstractCegarLoop]: Abstraction has 6550 states and 8870 transitions. [2022-10-16 12:48:22,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:48:22,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6550 states and 8870 transitions. [2022-10-16 12:48:22,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 12:48:22,099 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:22,100 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:48:22,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:48:22,100 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:48:22,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:22,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1255416396, now seen corresponding path program 1 times [2022-10-16 12:48:22,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:22,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793589473] [2022-10-16 12:48:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:22,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:48:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:48:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:48:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 12:48:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 12:48:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 12:48:23,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:23,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793589473] [2022-10-16 12:48:23,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793589473] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:23,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:23,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:48:23,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602805200] [2022-10-16 12:48:23,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:23,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:48:23,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:23,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:48:23,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:48:23,384 INFO L87 Difference]: Start difference. First operand 6550 states and 8870 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 12:48:26,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:28,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:28,319 INFO L93 Difference]: Finished difference Result 10621 states and 14320 transitions. [2022-10-16 12:48:28,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:48:28,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2022-10-16 12:48:28,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:28,366 INFO L225 Difference]: With dead ends: 10621 [2022-10-16 12:48:28,366 INFO L226 Difference]: Without dead ends: 6671 [2022-10-16 12:48:28,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:48:28,382 INFO L413 NwaCegarLoop]: 2129 mSDtfsCounter, 1220 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 4542 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 814 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:28,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 4542 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [814 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-10-16 12:48:28,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2022-10-16 12:48:28,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 6375. [2022-10-16 12:48:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6375 states, 4631 states have (on average 1.322608507881667) internal successors, (6125), 4725 states have internal predecessors, (6125), 1256 states have call successors, (1256), 453 states have call predecessors, (1256), 453 states have return successors, (1256), 1250 states have call predecessors, (1256), 1256 states have call successors, (1256) [2022-10-16 12:48:28,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6375 states to 6375 states and 8637 transitions. [2022-10-16 12:48:28,948 INFO L78 Accepts]: Start accepts. Automaton has 6375 states and 8637 transitions. Word has length 107 [2022-10-16 12:48:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:28,950 INFO L495 AbstractCegarLoop]: Abstraction has 6375 states and 8637 transitions. [2022-10-16 12:48:28,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 12:48:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 6375 states and 8637 transitions. [2022-10-16 12:48:28,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 12:48:28,956 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:28,956 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:48:28,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:48:28,957 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:48:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:28,957 INFO L85 PathProgramCache]: Analyzing trace with hash 593806023, now seen corresponding path program 1 times [2022-10-16 12:48:28,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:28,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385094513] [2022-10-16 12:48:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:28,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:48:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:48:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:48:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 12:48:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:48:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:48:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:48:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:48:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:48:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:30,733 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 12:48:30,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:30,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385094513] [2022-10-16 12:48:30,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385094513] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:48:30,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606327081] [2022-10-16 12:48:30,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:30,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:48:30,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:48:30,744 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 12:48:30,746 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 12:48:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:32,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 8974 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:48:32,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:48:32,509 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 12:48:32,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:48:32,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606327081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:32,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:48:32,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2022-10-16 12:48:32,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720294394] [2022-10-16 12:48:32,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:32,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:48:32,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:32,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:48:32,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:48:32,511 INFO L87 Difference]: Start difference. First operand 6375 states and 8637 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:48:33,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:33,254 INFO L93 Difference]: Finished difference Result 12763 states and 17291 transitions. [2022-10-16 12:48:33,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:48:33,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 121 [2022-10-16 12:48:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:33,294 INFO L225 Difference]: With dead ends: 12763 [2022-10-16 12:48:33,294 INFO L226 Difference]: Without dead ends: 6375 [2022-10-16 12:48:33,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-10-16 12:48:33,319 INFO L413 NwaCegarLoop]: 1862 mSDtfsCounter, 6 mSDsluCounter, 7436 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9298 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:33,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9298 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:48:33,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6375 states. [2022-10-16 12:48:33,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6375 to 6375. [2022-10-16 12:48:33,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6375 states, 4631 states have (on average 1.3217447635499893) internal successors, (6121), 4725 states have internal predecessors, (6121), 1256 states have call successors, (1256), 453 states have call predecessors, (1256), 453 states have return successors, (1256), 1250 states have call predecessors, (1256), 1256 states have call successors, (1256) [2022-10-16 12:48:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6375 states to 6375 states and 8633 transitions. [2022-10-16 12:48:33,853 INFO L78 Accepts]: Start accepts. Automaton has 6375 states and 8633 transitions. Word has length 121 [2022-10-16 12:48:33,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:33,854 INFO L495 AbstractCegarLoop]: Abstraction has 6375 states and 8633 transitions. [2022-10-16 12:48:33,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:48:33,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6375 states and 8633 transitions. [2022-10-16 12:48:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-16 12:48:33,859 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:33,859 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:48:33,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:48:34,073 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,SelfDestructingSolverStorable5 [2022-10-16 12:48:34,073 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:48:34,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:34,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1368375236, now seen corresponding path program 1 times [2022-10-16 12:48:34,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:34,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157255039] [2022-10-16 12:48:34,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:34,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:48:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:48:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:48:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 12:48:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:48:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 12:48:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:48:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:48:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:48:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:48:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 12:48:35,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:35,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157255039] [2022-10-16 12:48:35,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157255039] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:35,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:35,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 12:48:35,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838576197] [2022-10-16 12:48:35,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:35,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 12:48:35,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:35,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 12:48:35,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:48:35,473 INFO L87 Difference]: Start difference. First operand 6375 states and 8633 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 12:48:41,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:43,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:45,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:47,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:52,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:54,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:56,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:00,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:02,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:04,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:06,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:09,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:09,568 INFO L93 Difference]: Finished difference Result 13274 states and 18053 transitions. [2022-10-16 12:49:09,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:49:09,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 126 [2022-10-16 12:49:09,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:09,605 INFO L225 Difference]: With dead ends: 13274 [2022-10-16 12:49:09,606 INFO L226 Difference]: Without dead ends: 6902 [2022-10-16 12:49:09,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:49:09,631 INFO L413 NwaCegarLoop]: 1755 mSDtfsCounter, 1033 mSDsluCounter, 3810 mSDsCounter, 0 mSdLazyCounter, 6420 mSolverCounterSat, 338 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 5565 SdHoareTripleChecker+Invalid, 6766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 6420 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:09,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 5565 Invalid, 6766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 6420 Invalid, 8 Unknown, 0 Unchecked, 33.4s Time] [2022-10-16 12:49:09,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6902 states. [2022-10-16 12:49:10,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6902 to 6375. [2022-10-16 12:49:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6375 states, 4631 states have (on average 1.3208810192183114) internal successors, (6117), 4725 states have internal predecessors, (6117), 1256 states have call successors, (1256), 453 states have call predecessors, (1256), 453 states have return successors, (1256), 1250 states have call predecessors, (1256), 1256 states have call successors, (1256) [2022-10-16 12:49:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6375 states to 6375 states and 8629 transitions. [2022-10-16 12:49:10,223 INFO L78 Accepts]: Start accepts. Automaton has 6375 states and 8629 transitions. Word has length 126 [2022-10-16 12:49:10,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:10,224 INFO L495 AbstractCegarLoop]: Abstraction has 6375 states and 8629 transitions. [2022-10-16 12:49:10,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 12:49:10,224 INFO L276 IsEmpty]: Start isEmpty. Operand 6375 states and 8629 transitions. [2022-10-16 12:49:10,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-16 12:49:10,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:10,229 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:10,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:49:10,229 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:49:10,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:10,230 INFO L85 PathProgramCache]: Analyzing trace with hash 265074802, now seen corresponding path program 1 times [2022-10-16 12:49:10,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:10,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524462153] [2022-10-16 12:49:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:10,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:49:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:49:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:49:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:49:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 12:49:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 12:49:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 12:49:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:49:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:49:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 12:49:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:49:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:49:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:49:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:49:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:11,863 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 12:49:11,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:11,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524462153] [2022-10-16 12:49:11,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524462153] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:49:11,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357256235] [2022-10-16 12:49:11,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:11,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:49:11,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:49:11,866 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 12:49:11,878 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 12:49:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:13,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 9139 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 12:49:13,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:49:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 12:49:13,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:49:13,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357256235] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:13,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:49:13,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-10-16 12:49:13,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128536964] [2022-10-16 12:49:13,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:13,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:49:13,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:13,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:49:13,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-10-16 12:49:13,637 INFO L87 Difference]: Start difference. First operand 6375 states and 8629 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 6 states have internal predecessors, (99), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 12:49:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:14,108 INFO L93 Difference]: Finished difference Result 12789 states and 17307 transitions. [2022-10-16 12:49:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:49:14,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 6 states have internal predecessors, (99), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 141 [2022-10-16 12:49:14,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:14,130 INFO L225 Difference]: With dead ends: 12789 [2022-10-16 12:49:14,130 INFO L226 Difference]: Without dead ends: 6395 [2022-10-16 12:49:14,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-10-16 12:49:14,155 INFO L413 NwaCegarLoop]: 1860 mSDtfsCounter, 1 mSDsluCounter, 11149 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13009 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:14,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13009 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:49:14,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6395 states. [2022-10-16 12:49:14,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6395 to 6385. [2022-10-16 12:49:14,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6385 states, 4637 states have (on average 1.3200345050679319) internal successors, (6121), 4733 states have internal predecessors, (6121), 1256 states have call successors, (1256), 453 states have call predecessors, (1256), 457 states have return successors, (1264), 1252 states have call predecessors, (1264), 1256 states have call successors, (1264) [2022-10-16 12:49:14,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6385 states to 6385 states and 8641 transitions. [2022-10-16 12:49:14,589 INFO L78 Accepts]: Start accepts. Automaton has 6385 states and 8641 transitions. Word has length 141 [2022-10-16 12:49:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:14,590 INFO L495 AbstractCegarLoop]: Abstraction has 6385 states and 8641 transitions. [2022-10-16 12:49:14,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 6 states have internal predecessors, (99), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 12:49:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 6385 states and 8641 transitions. [2022-10-16 12:49:14,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-16 12:49:14,595 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:14,595 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:14,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:49:14,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 12:49:14,809 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:49:14,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:14,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1640786900, now seen corresponding path program 1 times [2022-10-16 12:49:14,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:14,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781143286] [2022-10-16 12:49:14,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:14,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:49:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:49:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:49:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:49:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 12:49:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 12:49:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:49:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:49:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:49:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 12:49:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:49:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:49:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:49:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:49:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 12:49:16,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:16,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781143286] [2022-10-16 12:49:16,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781143286] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:49:16,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946473544] [2022-10-16 12:49:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:16,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:49:16,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:49:16,656 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:49:16,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 12:49:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:18,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 9187 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:49:18,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:49:18,451 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 12:49:18,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:49:18,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946473544] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:18,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:49:18,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2022-10-16 12:49:18,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571816626] [2022-10-16 12:49:18,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:18,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:49:18,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:18,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:49:18,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:49:18,454 INFO L87 Difference]: Start difference. First operand 6385 states and 8641 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 12:49:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:18,998 INFO L93 Difference]: Finished difference Result 12783 states and 17299 transitions. [2022-10-16 12:49:18,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:49:18,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2022-10-16 12:49:18,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:19,021 INFO L225 Difference]: With dead ends: 12783 [2022-10-16 12:49:19,021 INFO L226 Difference]: Without dead ends: 6385 [2022-10-16 12:49:19,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-10-16 12:49:19,044 INFO L413 NwaCegarLoop]: 1860 mSDtfsCounter, 6 mSDsluCounter, 7430 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9290 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:19,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9290 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:49:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2022-10-16 12:49:19,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 6385. [2022-10-16 12:49:19,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6385 states, 4637 states have (on average 1.3191718783696356) internal successors, (6117), 4733 states have internal predecessors, (6117), 1256 states have call successors, (1256), 453 states have call predecessors, (1256), 457 states have return successors, (1264), 1252 states have call predecessors, (1264), 1256 states have call successors, (1264) [2022-10-16 12:49:19,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6385 states to 6385 states and 8637 transitions. [2022-10-16 12:49:19,504 INFO L78 Accepts]: Start accepts. Automaton has 6385 states and 8637 transitions. Word has length 150 [2022-10-16 12:49:19,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:19,504 INFO L495 AbstractCegarLoop]: Abstraction has 6385 states and 8637 transitions. [2022-10-16 12:49:19,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 12:49:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 6385 states and 8637 transitions. [2022-10-16 12:49:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-16 12:49:19,510 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:19,510 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:19,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 12:49:19,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:49:19,723 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:49:19,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:19,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1881026646, now seen corresponding path program 1 times [2022-10-16 12:49:19,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:19,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027367683] [2022-10-16 12:49:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:19,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:49:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:49:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:49:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:49:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 12:49:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 12:49:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:49:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:49:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:49:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 12:49:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:49:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:49:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:49:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:49:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:21,335 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 12:49:21,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:21,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027367683] [2022-10-16 12:49:21,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027367683] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:21,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:21,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 12:49:21,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656088971] [2022-10-16 12:49:21,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:21,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 12:49:21,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:21,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 12:49:21,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:49:21,338 INFO L87 Difference]: Start difference. First operand 6385 states and 8637 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 12:49:25,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:27,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:32,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:35,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:37,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:39,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:39,816 INFO L93 Difference]: Finished difference Result 13085 states and 17749 transitions. [2022-10-16 12:49:39,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 12:49:39,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2022-10-16 12:49:39,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:39,848 INFO L225 Difference]: With dead ends: 13085 [2022-10-16 12:49:39,849 INFO L226 Difference]: Without dead ends: 6703 [2022-10-16 12:49:39,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:49:39,866 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 1594 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 5242 mSolverCounterSat, 950 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 4310 SdHoareTripleChecker+Invalid, 6195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 950 IncrementalHoareTripleChecker+Valid, 5242 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:39,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 4310 Invalid, 6195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [950 Valid, 5242 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2022-10-16 12:49:39,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2022-10-16 12:49:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 6385. [2022-10-16 12:49:40,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6385 states, 4637 states have (on average 1.3183092516713393) internal successors, (6113), 4733 states have internal predecessors, (6113), 1256 states have call successors, (1256), 453 states have call predecessors, (1256), 457 states have return successors, (1264), 1252 states have call predecessors, (1264), 1256 states have call successors, (1264) [2022-10-16 12:49:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6385 states to 6385 states and 8633 transitions. [2022-10-16 12:49:40,443 INFO L78 Accepts]: Start accepts. Automaton has 6385 states and 8633 transitions. Word has length 150 [2022-10-16 12:49:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:40,443 INFO L495 AbstractCegarLoop]: Abstraction has 6385 states and 8633 transitions. [2022-10-16 12:49:40,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-16 12:49:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand 6385 states and 8633 transitions. [2022-10-16 12:49:40,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-10-16 12:49:40,448 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:40,449 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:49:40,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 12:49:40,449 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [iwch_poll_cq_oneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, iwch_poll_cq_oneErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 12:49:40,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:40,450 INFO L85 PathProgramCache]: Analyzing trace with hash 946738138, now seen corresponding path program 1 times [2022-10-16 12:49:40,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:40,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091469210] [2022-10-16 12:49:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:40,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 12:49:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:49:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:49:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:49:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 12:49:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 12:49:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:49:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:49:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:49:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 12:49:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:49:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:49:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:49:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:49:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 12:49:41,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:41,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091469210] [2022-10-16 12:49:41,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091469210] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:49:41,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276838238] [2022-10-16 12:49:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:41,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:49:41,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:49:41,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:49:41,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 12:49:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:43,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 9207 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:49:43,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:49:44,020 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 12:49:44,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:49:44,208 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 12:49:44,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276838238] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:49:44,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:49:44,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2022-10-16 12:49:44,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802571554] [2022-10-16 12:49:44,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:49:44,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 12:49:44,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:44,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 12:49:44,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:49:44,212 INFO L87 Difference]: Start difference. First operand 6385 states and 8633 transitions. Second operand has 12 states, 11 states have (on average 23.636363636363637) internal successors, (260), 7 states have internal predecessors, (260), 6 states have call successors, (46), 8 states have call predecessors, (46), 3 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2022-10-16 12:49:51,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:54,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:49:57,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:50:07,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:50:14,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []