/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--isdn--mISDN--l1oip.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:46:54,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:46:54,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:46:54,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:46:54,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:46:54,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:46:54,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:46:54,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:46:54,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:46:54,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:46:54,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:46:54,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:46:54,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:46:54,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:46:54,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:46:54,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:46:54,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:46:54,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:46:54,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:46:54,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:46:54,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:46:54,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:46:54,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:46:54,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:46:54,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:46:54,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:46:54,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:46:54,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:46:54,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:46:54,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:46:54,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:46:54,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:46:54,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:46:54,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:46:54,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:46:54,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:46:54,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:46:54,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:46:54,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:46:54,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:46:54,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:46:54,355 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 12:46:54,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:46:54,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:46:54,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:46:54,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:46:54,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:46:54,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:46:54,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:46:54,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:46:54,420 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:46:54,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:46:54,422 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:46:54,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:46:54,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:46:54,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:46:54,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:46:54,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:46:54,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:46:54,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:46:54,423 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:46:54,424 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:46:54,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:46:54,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:46:54,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:46:54,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:46:54,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:46:54,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:46:54,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:46:54,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:46:54,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:46:54,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:46:54,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:46:54,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:46:54,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:46:54,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:46:54,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:46:54,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:46:54,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:46:54,940 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:46:54,941 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:46:54,943 INFO L432 ainManager$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--isdn--mISDN--l1oip.ko-main.cil.out.i [2022-10-16 12:46:55,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/344b2c25b/235abef65d664c959645facf3c12b590/FLAGf1dad5cb6 [2022-10-16 12:46:56,126 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:46:56,127 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2022-10-16 12:46:56,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/344b2c25b/235abef65d664c959645facf3c12b590/FLAGf1dad5cb6 [2022-10-16 12:46:56,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/344b2c25b/235abef65d664c959645facf3c12b590 [2022-10-16 12:46:56,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:46:56,480 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:46:56,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:46:56,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:46:56,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:46:56,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:46:56" (1/1) ... [2022-10-16 12:46:56,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180d35bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:56, skipping insertion in model container [2022-10-16 12:46:56,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:46:56" (1/1) ... [2022-10-16 12:46:56,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:46:56,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:46:58,264 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--isdn--mISDN--l1oip.ko-main.cil.out.i[220631,220644] [2022-10-16 12:46:58,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:46:58,463 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:46:59,014 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--isdn--mISDN--l1oip.ko-main.cil.out.i[220631,220644] [2022-10-16 12:46:59,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:46:59,159 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:46:59,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59 WrapperNode [2022-10-16 12:46:59,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:46:59,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:46:59,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:46:59,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:46:59,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,521 INFO L138 Inliner]: procedures = 181, calls = 2117, calls flagged for inlining = 61, calls inlined = 40, statements flattened = 3037 [2022-10-16 12:46:59,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:46:59,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:46:59,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:46:59,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:46:59,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,698 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:46:59,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:46:59,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:46:59,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:46:59,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (1/1) ... [2022-10-16 12:46:59,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:46:59,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:46:59,900 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 12:46:59,916 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 12:46:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure sock_release [2022-10-16 12:46:59,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_release [2022-10-16 12:46:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 12:46:59,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-16 12:46:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:46:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 12:46:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 12:46:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:46:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-10-16 12:46:59,966 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-10-16 12:46:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 12:46:59,966 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 12:46:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:46:59,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:46:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 12:46:59,967 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 12:46:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-10-16 12:46:59,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-10-16 12:46:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_ulaw_to_alaw [2022-10-16 12:46:59,967 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_ulaw_to_alaw [2022-10-16 12:46:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:46:59,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:46:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-10-16 12:46:59,968 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-10-16 12:46:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-10-16 12:46:59,968 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-10-16 12:46:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:46:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:46:59,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:46:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_send [2022-10-16 12:46:59,969 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_send [2022-10-16 12:46:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 12:46:59,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 12:46:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-16 12:46:59,970 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-16 12:46:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2022-10-16 12:46:59,970 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2022-10-16 12:46:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:46:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-16 12:46:59,970 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-16 12:46:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 12:46:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 12:46:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-16 12:46:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-16 12:46:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:46:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_open [2022-10-16 12:46:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_open [2022-10-16 12:46:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-16 12:46:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-16 12:46:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:46:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:46:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 12:46:59,975 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 12:46:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:46:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_free [2022-10-16 12:46:59,976 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_free [2022-10-16 12:46:59,976 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-16 12:46:59,976 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-16 12:46:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:46:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:46:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-10-16 12:46:59,978 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-10-16 12:46:59,978 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2022-10-16 12:46:59,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2022-10-16 12:46:59,978 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2022-10-16 12:46:59,978 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2022-10-16 12:46:59,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-16 12:46:59,979 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-16 12:46:59,979 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2022-10-16 12:46:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2022-10-16 12:46:59,980 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 12:46:59,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 12:46:59,981 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 12:46:59,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 12:46:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-16 12:46:59,982 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-16 12:46:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_alaw_to_ulaw [2022-10-16 12:46:59,983 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_alaw_to_ulaw [2022-10-16 12:46:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_close [2022-10-16 12:46:59,983 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_close [2022-10-16 12:46:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-16 12:46:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-16 12:46:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:46:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure memchr_inv [2022-10-16 12:46:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure memchr_inv [2022-10-16 12:46:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-10-16 12:46:59,985 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-10-16 12:46:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 12:46:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_cleanup [2022-10-16 12:46:59,986 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_cleanup [2022-10-16 12:46:59,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:46:59,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:46:59,987 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 12:46:59,987 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 12:47:00,553 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:47:00,560 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:47:04,344 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:47:04,361 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:47:04,361 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 12:47:04,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:47:04 BoogieIcfgContainer [2022-10-16 12:47:04,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:47:04,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:47:04,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:47:04,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:47:04,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:46:56" (1/3) ... [2022-10-16 12:47:04,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a827014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:47:04, skipping insertion in model container [2022-10-16 12:47:04,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:46:59" (2/3) ... [2022-10-16 12:47:04,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a827014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:47:04, skipping insertion in model container [2022-10-16 12:47:04,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:47:04" (3/3) ... [2022-10-16 12:47:04,378 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2022-10-16 12:47:04,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:47:04,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 96 error locations. [2022-10-16 12:47:04,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:47:04,511 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;@35997b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:47:04,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-10-16 12:47:04,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 736 states, 504 states have (on average 1.4761904761904763) internal successors, (744), 611 states have internal predecessors, (744), 96 states have call successors, (96), 39 states have call predecessors, (96), 39 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2022-10-16 12:47:04,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 12:47:04,540 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:04,541 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:04,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting l1oip_cleanupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:04,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1977446891, now seen corresponding path program 1 times [2022-10-16 12:47:04,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:04,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517446929] [2022-10-16 12:47:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:04,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 12:47:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:05,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:05,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:05,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517446929] [2022-10-16 12:47:05,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517446929] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:05,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:05,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:47:05,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176673360] [2022-10-16 12:47:05,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:05,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:47:05,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:05,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:47:05,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:47:05,865 INFO L87 Difference]: Start difference. First operand has 736 states, 504 states have (on average 1.4761904761904763) internal successors, (744), 611 states have internal predecessors, (744), 96 states have call successors, (96), 39 states have call predecessors, (96), 39 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:47:06,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:06,280 INFO L93 Difference]: Finished difference Result 1853 states and 2411 transitions. [2022-10-16 12:47:06,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:47:06,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-10-16 12:47:06,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:06,309 INFO L225 Difference]: With dead ends: 1853 [2022-10-16 12:47:06,310 INFO L226 Difference]: Without dead ends: 1094 [2022-10-16 12:47:06,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:47:06,331 INFO L413 NwaCegarLoop]: 1405 mSDtfsCounter, 898 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:06,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 1922 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:47:06,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-10-16 12:47:06,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1066. [2022-10-16 12:47:06,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 763 states have (on average 1.4403669724770642) internal successors, (1099), 868 states have internal predecessors, (1099), 150 states have call successors, (150), 62 states have call predecessors, (150), 61 states have return successors, (149), 149 states have call predecessors, (149), 149 states have call successors, (149) [2022-10-16 12:47:06,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1398 transitions. [2022-10-16 12:47:06,534 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1398 transitions. Word has length 37 [2022-10-16 12:47:06,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:06,534 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1398 transitions. [2022-10-16 12:47:06,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:47:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1398 transitions. [2022-10-16 12:47:06,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 12:47:06,545 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:06,546 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:06,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:47:06,548 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:06,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:06,550 INFO L85 PathProgramCache]: Analyzing trace with hash -157611794, now seen corresponding path program 1 times [2022-10-16 12:47:06,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:06,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826290172] [2022-10-16 12:47:06,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:06,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:07,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:47:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:07,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:07,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:07,477 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:07,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:07,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826290172] [2022-10-16 12:47:07,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826290172] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:07,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:07,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:47:07,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577671895] [2022-10-16 12:47:07,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:07,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:47:07,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:07,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:47:07,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:07,483 INFO L87 Difference]: Start difference. First operand 1066 states and 1398 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 12:47:10,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:10,347 INFO L93 Difference]: Finished difference Result 3096 states and 4336 transitions. [2022-10-16 12:47:10,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:47:10,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2022-10-16 12:47:10,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:10,366 INFO L225 Difference]: With dead ends: 3096 [2022-10-16 12:47:10,367 INFO L226 Difference]: Without dead ends: 2033 [2022-10-16 12:47:10,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:47:10,375 INFO L413 NwaCegarLoop]: 879 mSDtfsCounter, 2327 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 863 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 863 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:10,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2383 Valid, 2386 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [863 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-16 12:47:10,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2022-10-16 12:47:10,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1044. [2022-10-16 12:47:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 747 states have (on average 1.4364123159303883) internal successors, (1073), 850 states have internal predecessors, (1073), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-16 12:47:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1368 transitions. [2022-10-16 12:47:10,518 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1368 transitions. Word has length 52 [2022-10-16 12:47:10,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:10,518 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1368 transitions. [2022-10-16 12:47:10,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 12:47:10,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1368 transitions. [2022-10-16 12:47:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 12:47:10,526 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:10,527 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:10,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:47:10,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:10,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:10,529 INFO L85 PathProgramCache]: Analyzing trace with hash -157552212, now seen corresponding path program 1 times [2022-10-16 12:47:10,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:10,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112616688] [2022-10-16 12:47:10,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:10,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:47:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:11,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:11,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112616688] [2022-10-16 12:47:11,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112616688] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:11,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:11,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:47:11,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155131374] [2022-10-16 12:47:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:11,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:47:11,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:11,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:47:11,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:11,162 INFO L87 Difference]: Start difference. First operand 1044 states and 1368 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:13,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:13,482 INFO L93 Difference]: Finished difference Result 3110 states and 4321 transitions. [2022-10-16 12:47:13,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:47:13,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-10-16 12:47:13,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:13,498 INFO L225 Difference]: With dead ends: 3110 [2022-10-16 12:47:13,499 INFO L226 Difference]: Without dead ends: 2069 [2022-10-16 12:47:13,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:13,512 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 876 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:13,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 2591 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 12:47:13,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2022-10-16 12:47:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 1080. [2022-10-16 12:47:13,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 783 states have (on average 1.4393358876117497) internal successors, (1127), 886 states have internal predecessors, (1127), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-16 12:47:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1422 transitions. [2022-10-16 12:47:13,636 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1422 transitions. Word has length 52 [2022-10-16 12:47:13,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:13,637 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1422 transitions. [2022-10-16 12:47:13,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:13,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1422 transitions. [2022-10-16 12:47:13,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 12:47:13,639 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:13,639 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:13,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:47:13,640 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:13,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2141430288, now seen corresponding path program 1 times [2022-10-16 12:47:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:13,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452912444] [2022-10-16 12:47:13,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:13,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:47:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:14,258 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:14,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:14,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452912444] [2022-10-16 12:47:14,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452912444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:14,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:14,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:47:14,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479054565] [2022-10-16 12:47:14,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:14,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:47:14,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:14,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:47:14,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:14,263 INFO L87 Difference]: Start difference. First operand 1080 states and 1422 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:16,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:16,847 INFO L93 Difference]: Finished difference Result 2265 states and 3241 transitions. [2022-10-16 12:47:16,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:47:16,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2022-10-16 12:47:16,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:16,865 INFO L225 Difference]: With dead ends: 2265 [2022-10-16 12:47:16,866 INFO L226 Difference]: Without dead ends: 2264 [2022-10-16 12:47:16,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:16,869 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 1137 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3212 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:16,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 3212 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-16 12:47:16,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2022-10-16 12:47:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 1079. [2022-10-16 12:47:16,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 783 states have (on average 1.4367816091954022) internal successors, (1125), 885 states have internal predecessors, (1125), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-16 12:47:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1420 transitions. [2022-10-16 12:47:16,996 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1420 transitions. Word has length 56 [2022-10-16 12:47:16,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:16,997 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1420 transitions. [2022-10-16 12:47:16,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:16,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1420 transitions. [2022-10-16 12:47:16,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 12:47:16,999 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:16,999 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:17,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:47:17,000 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:17,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:17,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1959828575, now seen corresponding path program 1 times [2022-10-16 12:47:17,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:17,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281259872] [2022-10-16 12:47:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:17,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:17,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:47:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:17,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:17,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:17,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:17,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281259872] [2022-10-16 12:47:17,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281259872] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:17,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:17,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:47:17,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013320867] [2022-10-16 12:47:17,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:17,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:47:17,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:17,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:47:17,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:17,595 INFO L87 Difference]: Start difference. First operand 1079 states and 1420 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:20,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:20,322 INFO L93 Difference]: Finished difference Result 2264 states and 3239 transitions. [2022-10-16 12:47:20,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:47:20,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2022-10-16 12:47:20,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:20,340 INFO L225 Difference]: With dead ends: 2264 [2022-10-16 12:47:20,341 INFO L226 Difference]: Without dead ends: 2263 [2022-10-16 12:47:20,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:20,344 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 1137 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:20,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 3224 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-16 12:47:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2022-10-16 12:47:20,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 1078. [2022-10-16 12:47:20,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 783 states have (on average 1.434227330779055) internal successors, (1123), 884 states have internal predecessors, (1123), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-16 12:47:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1418 transitions. [2022-10-16 12:47:20,473 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1418 transitions. Word has length 57 [2022-10-16 12:47:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:20,473 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1418 transitions. [2022-10-16 12:47:20,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1418 transitions. [2022-10-16 12:47:20,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 12:47:20,475 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:20,476 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:20,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:47:20,476 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:20,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:20,477 INFO L85 PathProgramCache]: Analyzing trace with hash -625142766, now seen corresponding path program 1 times [2022-10-16 12:47:20,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:20,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348756689] [2022-10-16 12:47:20,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:20,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:20,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:20,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:20,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:47:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:21,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:21,017 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:21,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:21,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348756689] [2022-10-16 12:47:21,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348756689] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:21,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:21,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:47:21,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913544323] [2022-10-16 12:47:21,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:21,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:47:21,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:21,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:47:21,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:21,021 INFO L87 Difference]: Start difference. First operand 1078 states and 1418 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:23,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:26,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:26,003 INFO L93 Difference]: Finished difference Result 3188 states and 4445 transitions. [2022-10-16 12:47:26,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:47:26,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2022-10-16 12:47:26,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:26,019 INFO L225 Difference]: With dead ends: 3188 [2022-10-16 12:47:26,020 INFO L226 Difference]: Without dead ends: 2113 [2022-10-16 12:47:26,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:26,026 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 870 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 505 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:26,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 2514 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-10-16 12:47:26,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2022-10-16 12:47:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1130. [2022-10-16 12:47:26,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 835 states have (on average 1.421556886227545) internal successors, (1187), 936 states have internal predecessors, (1187), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-16 12:47:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1482 transitions. [2022-10-16 12:47:26,153 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1482 transitions. Word has length 58 [2022-10-16 12:47:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:26,154 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 1482 transitions. [2022-10-16 12:47:26,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:26,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1482 transitions. [2022-10-16 12:47:26,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 12:47:26,156 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:26,157 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:26,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:47:26,157 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting l1oip_cleanupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:26,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:26,158 INFO L85 PathProgramCache]: Analyzing trace with hash 752791222, now seen corresponding path program 1 times [2022-10-16 12:47:26,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:26,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936008038] [2022-10-16 12:47:26,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:26,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:26,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:26,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:26,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:47:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 12:47:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:26,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:26,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936008038] [2022-10-16 12:47:26,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936008038] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:26,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:26,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:47:26,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560431974] [2022-10-16 12:47:26,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:26,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:47:26,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:26,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:47:26,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:26,648 INFO L87 Difference]: Start difference. First operand 1130 states and 1482 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 12:47:28,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:30,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:30,991 INFO L93 Difference]: Finished difference Result 2826 states and 3801 transitions. [2022-10-16 12:47:30,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:47:30,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2022-10-16 12:47:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:31,004 INFO L225 Difference]: With dead ends: 2826 [2022-10-16 12:47:31,004 INFO L226 Difference]: Without dead ends: 1699 [2022-10-16 12:47:31,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:31,011 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 949 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 185 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:31,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 2631 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 812 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-10-16 12:47:31,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-10-16 12:47:31,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1132. [2022-10-16 12:47:31,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 837 states have (on average 1.4205495818399043) internal successors, (1189), 938 states have internal predecessors, (1189), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-16 12:47:31,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1484 transitions. [2022-10-16 12:47:31,137 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1484 transitions. Word has length 63 [2022-10-16 12:47:31,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:31,138 INFO L495 AbstractCegarLoop]: Abstraction has 1132 states and 1484 transitions. [2022-10-16 12:47:31,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 12:47:31,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1484 transitions. [2022-10-16 12:47:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 12:47:31,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:31,144 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:31,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:47:31,144 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting l1oip_cleanupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:31,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:31,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1367389337, now seen corresponding path program 1 times [2022-10-16 12:47:31,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:31,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729744402] [2022-10-16 12:47:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:31,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:31,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:31,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:31,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:47:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:31,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:47:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:31,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:31,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:31,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729744402] [2022-10-16 12:47:31,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729744402] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:31,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:31,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:47:31,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019226939] [2022-10-16 12:47:31,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:31,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:47:31,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:31,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:47:31,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:47:31,638 INFO L87 Difference]: Start difference. First operand 1132 states and 1484 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:47:33,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:33,457 INFO L93 Difference]: Finished difference Result 2643 states and 3554 transitions. [2022-10-16 12:47:33,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:47:33,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2022-10-16 12:47:33,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:33,468 INFO L225 Difference]: With dead ends: 2643 [2022-10-16 12:47:33,469 INFO L226 Difference]: Without dead ends: 1514 [2022-10-16 12:47:33,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:33,475 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 292 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:33,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1995 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 12:47:33,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-10-16 12:47:33,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1158. [2022-10-16 12:47:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 859 states have (on average 1.4144353899883586) internal successors, (1215), 960 states have internal predecessors, (1215), 152 states have call successors, (152), 60 states have call predecessors, (152), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-16 12:47:33,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1518 transitions. [2022-10-16 12:47:33,594 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1518 transitions. Word has length 64 [2022-10-16 12:47:33,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:33,595 INFO L495 AbstractCegarLoop]: Abstraction has 1158 states and 1518 transitions. [2022-10-16 12:47:33,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:47:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1518 transitions. [2022-10-16 12:47:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 12:47:33,597 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:33,598 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:33,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:47:33,598 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:33,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:33,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1724547571, now seen corresponding path program 1 times [2022-10-16 12:47:33,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:33,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032073201] [2022-10-16 12:47:33,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:33,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:34,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:34,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:34,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:34,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:47:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:34,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 12:47:34,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:34,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032073201] [2022-10-16 12:47:34,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032073201] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:34,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:34,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:47:34,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737858764] [2022-10-16 12:47:34,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:34,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:47:34,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:34,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:47:34,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:34,071 INFO L87 Difference]: Start difference. First operand 1158 states and 1518 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:36,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:36,957 INFO L93 Difference]: Finished difference Result 2201 states and 3132 transitions. [2022-10-16 12:47:36,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:47:36,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 71 [2022-10-16 12:47:36,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:36,974 INFO L225 Difference]: With dead ends: 2201 [2022-10-16 12:47:36,975 INFO L226 Difference]: Without dead ends: 2195 [2022-10-16 12:47:36,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:36,980 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 863 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:36,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 2540 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-16 12:47:36,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-10-16 12:47:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 1152. [2022-10-16 12:47:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 859 states have (on average 1.40046565774156) internal successors, (1203), 954 states have internal predecessors, (1203), 152 states have call successors, (152), 60 states have call predecessors, (152), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-16 12:47:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1506 transitions. [2022-10-16 12:47:37,151 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1506 transitions. Word has length 71 [2022-10-16 12:47:37,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:37,151 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1506 transitions. [2022-10-16 12:47:37,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:37,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1506 transitions. [2022-10-16 12:47:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 12:47:37,155 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:37,155 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:37,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 12:47:37,155 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:37,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:37,156 INFO L85 PathProgramCache]: Analyzing trace with hash -719313930, now seen corresponding path program 1 times [2022-10-16 12:47:37,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:37,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627252655] [2022-10-16 12:47:37,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:37,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:37,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:37,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:37,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:47:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:37,817 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:37,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:37,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627252655] [2022-10-16 12:47:37,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627252655] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:47:37,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368173684] [2022-10-16 12:47:37,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:37,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:37,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:47:37,822 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 12:47:37,831 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 12:47:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:38,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 3373 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:47:38,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:47:38,628 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 12:47:38,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:47:38,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368173684] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:38,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:47:38,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-10-16 12:47:38,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767751717] [2022-10-16 12:47:38,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:38,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:47:38,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:38,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:47:38,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:47:38,631 INFO L87 Difference]: Start difference. First operand 1152 states and 1506 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:38,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:38,793 INFO L93 Difference]: Finished difference Result 1152 states and 1506 transitions. [2022-10-16 12:47:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:47:38,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 71 [2022-10-16 12:47:38,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:38,801 INFO L225 Difference]: With dead ends: 1152 [2022-10-16 12:47:38,801 INFO L226 Difference]: Without dead ends: 1146 [2022-10-16 12:47:38,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:47:38,803 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 46 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:38,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1677 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:47:38,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-10-16 12:47:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1146. [2022-10-16 12:47:38,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 859 states have (on average 1.388824214202561) internal successors, (1193), 948 states have internal predecessors, (1193), 152 states have call successors, (152), 60 states have call predecessors, (152), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-16 12:47:38,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1496 transitions. [2022-10-16 12:47:38,922 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1496 transitions. Word has length 71 [2022-10-16 12:47:38,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:38,922 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1496 transitions. [2022-10-16 12:47:38,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:38,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1496 transitions. [2022-10-16 12:47:38,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 12:47:38,925 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:38,925 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:38,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 12:47:39,139 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,SelfDestructingSolverStorable9 [2022-10-16 12:47:39,140 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:39,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:39,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1921368066, now seen corresponding path program 1 times [2022-10-16 12:47:39,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:39,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304214232] [2022-10-16 12:47:39,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:39,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:39,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:39,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:47:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:39,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:39,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:39,742 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:39,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:39,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304214232] [2022-10-16 12:47:39,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304214232] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:47:39,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381230832] [2022-10-16 12:47:39,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:39,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:39,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:47:39,745 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 12:47:39,772 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 12:47:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:40,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 3382 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:47:40,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:47:40,656 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:40,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:47:40,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381230832] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:40,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:47:40,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 12:47:40,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150981336] [2022-10-16 12:47:40,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:40,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:47:40,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:40,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:47:40,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:47:40,659 INFO L87 Difference]: Start difference. First operand 1146 states and 1496 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:41,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:41,000 INFO L93 Difference]: Finished difference Result 1364 states and 1785 transitions. [2022-10-16 12:47:41,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:47:41,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 72 [2022-10-16 12:47:41,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:41,010 INFO L225 Difference]: With dead ends: 1364 [2022-10-16 12:47:41,011 INFO L226 Difference]: Without dead ends: 1358 [2022-10-16 12:47:41,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:47:41,013 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 532 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:41,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 2003 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:47:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2022-10-16 12:47:41,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1092. [2022-10-16 12:47:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 811 states have (on average 1.3871763255240444) internal successors, (1125), 894 states have internal predecessors, (1125), 152 states have call successors, (152), 60 states have call predecessors, (152), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-16 12:47:41,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1428 transitions. [2022-10-16 12:47:41,151 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1428 transitions. Word has length 72 [2022-10-16 12:47:41,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:41,152 INFO L495 AbstractCegarLoop]: Abstraction has 1092 states and 1428 transitions. [2022-10-16 12:47:41,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:41,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1428 transitions. [2022-10-16 12:47:41,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 12:47:41,154 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:41,155 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:41,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 12:47:41,368 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,SelfDestructingSolverStorable10 [2022-10-16 12:47:41,369 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:41,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:41,369 INFO L85 PathProgramCache]: Analyzing trace with hash -823894445, now seen corresponding path program 1 times [2022-10-16 12:47:41,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:41,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139312338] [2022-10-16 12:47:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:41,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:41,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:41,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:41,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:47:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:41,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:41,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:47:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:41,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:41,972 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:41,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:41,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139312338] [2022-10-16 12:47:41,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139312338] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:47:41,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10433815] [2022-10-16 12:47:41,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:41,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:41,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:47:41,974 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 12:47:41,993 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 12:47:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:42,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 3374 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:47:42,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:47:42,738 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:42,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:47:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:42,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10433815] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:47:42,838 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:47:42,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2022-10-16 12:47:42,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918049207] [2022-10-16 12:47:42,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:47:42,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 12:47:42,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:42,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 12:47:42,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:47:42,840 INFO L87 Difference]: Start difference. First operand 1092 states and 1428 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 7 states have internal predecessors, (84), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:46,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:46,399 INFO L93 Difference]: Finished difference Result 3801 states and 5231 transitions. [2022-10-16 12:47:46,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:47:46,402 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 7 states have internal predecessors, (84), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 72 [2022-10-16 12:47:46,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:46,422 INFO L225 Difference]: With dead ends: 3801 [2022-10-16 12:47:46,422 INFO L226 Difference]: Without dead ends: 2712 [2022-10-16 12:47:46,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:47:46,433 INFO L413 NwaCegarLoop]: 1311 mSDtfsCounter, 1596 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 4319 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:46,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 4319 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-16 12:47:46,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-10-16 12:47:46,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 1196. [2022-10-16 12:47:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 915 states have (on average 1.3562841530054646) internal successors, (1241), 998 states have internal predecessors, (1241), 152 states have call successors, (152), 60 states have call predecessors, (152), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-16 12:47:46,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1544 transitions. [2022-10-16 12:47:46,605 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1544 transitions. Word has length 72 [2022-10-16 12:47:46,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:46,605 INFO L495 AbstractCegarLoop]: Abstraction has 1196 states and 1544 transitions. [2022-10-16 12:47:46,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 7 states have internal predecessors, (84), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:47:46,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1544 transitions. [2022-10-16 12:47:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 12:47:46,608 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:46,608 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:46,654 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 12:47:46,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:46,823 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting l1oip_cleanupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:46,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:46,824 INFO L85 PathProgramCache]: Analyzing trace with hash -628846671, now seen corresponding path program 1 times [2022-10-16 12:47:46,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:46,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441777275] [2022-10-16 12:47:46,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:46,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:47,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:47,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:47,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:47,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:47:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:47,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:47:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:47,175 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:47:47,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:47,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441777275] [2022-10-16 12:47:47,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441777275] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:47,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:47,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:47:47,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714026955] [2022-10-16 12:47:47,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:47,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:47:47,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:47,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:47:47,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:47:47,178 INFO L87 Difference]: Start difference. First operand 1196 states and 1544 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:47:48,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:48,766 INFO L93 Difference]: Finished difference Result 1551 states and 2084 transitions. [2022-10-16 12:47:48,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:47:48,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 71 [2022-10-16 12:47:48,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:48,775 INFO L225 Difference]: With dead ends: 1551 [2022-10-16 12:47:48,775 INFO L226 Difference]: Without dead ends: 1550 [2022-10-16 12:47:48,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:47:48,777 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 281 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:48,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1954 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 12:47:48,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-10-16 12:47:48,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1195. [2022-10-16 12:47:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 915 states have (on average 1.3540983606557377) internal successors, (1239), 997 states have internal predecessors, (1239), 152 states have call successors, (152), 60 states have call predecessors, (152), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-16 12:47:48,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1542 transitions. [2022-10-16 12:47:48,926 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1542 transitions. Word has length 71 [2022-10-16 12:47:48,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:48,927 INFO L495 AbstractCegarLoop]: Abstraction has 1195 states and 1542 transitions. [2022-10-16 12:47:48,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:47:48,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1542 transitions. [2022-10-16 12:47:48,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 12:47:48,929 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:48,929 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:47:48,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 12:47:48,930 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting l1oip_cleanupErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:48,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:48,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1980590495, now seen corresponding path program 1 times [2022-10-16 12:47:48,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:48,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761623310] [2022-10-16 12:47:48,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:48,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:49,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:49,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:47:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:47:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:49,373 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:49,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:49,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761623310] [2022-10-16 12:47:49,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761623310] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:47:49,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841776652] [2022-10-16 12:47:49,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:49,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:49,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:47:49,376 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 12:47:49,401 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 12:47:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:50,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 3396 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:47:50,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:47:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:47:50,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:47:50,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841776652] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:50,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:47:50,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 12:47:50,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754712127] [2022-10-16 12:47:50,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:50,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:47:50,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:50,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:47:50,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:50,148 INFO L87 Difference]: Start difference. First operand 1195 states and 1542 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:47:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:50,299 INFO L93 Difference]: Finished difference Result 1202 states and 1553 transitions. [2022-10-16 12:47:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:47:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 72 [2022-10-16 12:47:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:50,311 INFO L225 Difference]: With dead ends: 1202 [2022-10-16 12:47:50,312 INFO L226 Difference]: Without dead ends: 1201 [2022-10-16 12:47:50,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:50,314 INFO L413 NwaCegarLoop]: 879 mSDtfsCounter, 19 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:50,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2591 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:47:50,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-10-16 12:47:50,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1170. [2022-10-16 12:47:50,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 895 states have (on average 1.3553072625698324) internal successors, (1213), 976 states have internal predecessors, (1213), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-16 12:47:50,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1508 transitions. [2022-10-16 12:47:50,514 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1508 transitions. Word has length 72 [2022-10-16 12:47:50,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:50,514 INFO L495 AbstractCegarLoop]: Abstraction has 1170 states and 1508 transitions. [2022-10-16 12:47:50,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-16 12:47:50,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1508 transitions. [2022-10-16 12:47:50,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 12:47:50,517 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:50,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:50,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 12:47:50,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:47:50,734 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:50,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:50,736 INFO L85 PathProgramCache]: Analyzing trace with hash 775749135, now seen corresponding path program 1 times [2022-10-16 12:47:50,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:50,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176238905] [2022-10-16 12:47:50,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:50,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:47:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:47:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:47:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 12:47:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:47:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 12:47:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:47:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:47:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 12:47:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:47:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 12:47:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:47:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:47:51,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:47:51,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176238905] [2022-10-16 12:47:51,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176238905] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:47:51,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:47:51,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:47:51,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684782307] [2022-10-16 12:47:51,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:47:51,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:47:51,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:47:51,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:47:51,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:47:51,322 INFO L87 Difference]: Start difference. First operand 1170 states and 1508 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 12:47:53,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:55,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:47:59,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:47:59,200 INFO L93 Difference]: Finished difference Result 3969 states and 5407 transitions. [2022-10-16 12:47:59,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:47:59,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 90 [2022-10-16 12:47:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:47:59,218 INFO L225 Difference]: With dead ends: 3969 [2022-10-16 12:47:59,218 INFO L226 Difference]: Without dead ends: 2802 [2022-10-16 12:47:59,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:47:59,224 INFO L413 NwaCegarLoop]: 1270 mSDtfsCounter, 1351 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 558 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 4485 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:47:59,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 4485 Invalid, 2172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1612 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-10-16 12:47:59,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2022-10-16 12:47:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 1362. [2022-10-16 12:47:59,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1072 states have (on average 1.4039179104477613) internal successors, (1505), 1153 states have internal predecessors, (1505), 163 states have call successors, (163), 60 states have call predecessors, (163), 59 states have return successors, (162), 162 states have call predecessors, (162), 162 states have call successors, (162) [2022-10-16 12:47:59,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1830 transitions. [2022-10-16 12:47:59,429 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1830 transitions. Word has length 90 [2022-10-16 12:47:59,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:47:59,430 INFO L495 AbstractCegarLoop]: Abstraction has 1362 states and 1830 transitions. [2022-10-16 12:47:59,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 12:47:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1830 transitions. [2022-10-16 12:47:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 12:47:59,432 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:47:59,433 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:59,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 12:47:59,433 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:47:59,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:47:59,434 INFO L85 PathProgramCache]: Analyzing trace with hash -845620046, now seen corresponding path program 1 times [2022-10-16 12:47:59,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:47:59,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646057418] [2022-10-16 12:47:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:47:59,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:47:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 12:48:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-16 12:48:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:48:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:48:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:48:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 12:48:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-16 12:48:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:00,196 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:48:00,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:00,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646057418] [2022-10-16 12:48:00,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646057418] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:00,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:00,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:48:00,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200023428] [2022-10-16 12:48:00,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:00,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:48:00,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:00,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:48:00,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:48:00,199 INFO L87 Difference]: Start difference. First operand 1362 states and 1830 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 12:48:02,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:48:08,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:08,320 INFO L93 Difference]: Finished difference Result 4360 states and 5979 transitions. [2022-10-16 12:48:08,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 12:48:08,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 91 [2022-10-16 12:48:08,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:08,339 INFO L225 Difference]: With dead ends: 4360 [2022-10-16 12:48:08,340 INFO L226 Difference]: Without dead ends: 3001 [2022-10-16 12:48:08,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-10-16 12:48:08,346 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 3028 mSDsluCounter, 4553 mSDsCounter, 0 mSdLazyCounter, 2926 mSolverCounterSat, 1108 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3175 SdHoareTripleChecker+Valid, 6028 SdHoareTripleChecker+Invalid, 4035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1108 IncrementalHoareTripleChecker+Valid, 2926 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:08,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3175 Valid, 6028 Invalid, 4035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1108 Valid, 2926 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-10-16 12:48:08,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2022-10-16 12:48:08,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 1496. [2022-10-16 12:48:08,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1192 states have (on average 1.424496644295302) internal successors, (1698), 1273 states have internal predecessors, (1698), 177 states have call successors, (177), 60 states have call predecessors, (177), 59 states have return successors, (176), 176 states have call predecessors, (176), 176 states have call successors, (176) [2022-10-16 12:48:08,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 2051 transitions. [2022-10-16 12:48:08,563 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 2051 transitions. Word has length 91 [2022-10-16 12:48:08,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:08,564 INFO L495 AbstractCegarLoop]: Abstraction has 1496 states and 2051 transitions. [2022-10-16 12:48:08,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 12:48:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 2051 transitions. [2022-10-16 12:48:08,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 12:48:08,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:08,568 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:08,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 12:48:08,568 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:08,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:08,569 INFO L85 PathProgramCache]: Analyzing trace with hash 775808717, now seen corresponding path program 1 times [2022-10-16 12:48:08,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:08,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228854053] [2022-10-16 12:48:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 12:48:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 12:48:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:48:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:48:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 12:48:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:48:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 12:48:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:48:09,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:09,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228854053] [2022-10-16 12:48:09,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228854053] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:09,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:09,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:48:09,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485889795] [2022-10-16 12:48:09,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:09,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:48:09,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:09,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:48:09,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:48:09,171 INFO L87 Difference]: Start difference. First operand 1496 states and 2051 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:48:13,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:13,777 INFO L93 Difference]: Finished difference Result 4915 states and 7107 transitions. [2022-10-16 12:48:13,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:48:13,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2022-10-16 12:48:13,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:13,796 INFO L225 Difference]: With dead ends: 4915 [2022-10-16 12:48:13,797 INFO L226 Difference]: Without dead ends: 4893 [2022-10-16 12:48:13,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:48:13,800 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 2843 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 1309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 2871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:13,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 2466 Invalid, 2871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1309 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-10-16 12:48:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2022-10-16 12:48:14,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 2388. [2022-10-16 12:48:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 1927 states have (on average 1.4110015568240788) internal successors, (2719), 2016 states have internal predecessors, (2719), 297 states have call successors, (297), 97 states have call predecessors, (297), 96 states have return successors, (296), 296 states have call predecessors, (296), 296 states have call successors, (296) [2022-10-16 12:48:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3312 transitions. [2022-10-16 12:48:14,210 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3312 transitions. Word has length 90 [2022-10-16 12:48:14,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:14,210 INFO L495 AbstractCegarLoop]: Abstraction has 2388 states and 3312 transitions. [2022-10-16 12:48:14,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:48:14,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3312 transitions. [2022-10-16 12:48:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 12:48:14,217 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:14,217 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:48:14,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 12:48:14,217 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting _queue_dataErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:14,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:14,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1899844314, now seen corresponding path program 1 times [2022-10-16 12:48:14,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:14,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96293081] [2022-10-16 12:48:14,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:14,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:48:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:48:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:48:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:48:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 12:48:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:14,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:48:14,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:14,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96293081] [2022-10-16 12:48:14,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96293081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:14,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:14,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:48:14,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541736742] [2022-10-16 12:48:14,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:14,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:48:14,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:14,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:48:14,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:48:14,785 INFO L87 Difference]: Start difference. First operand 2388 states and 3312 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-16 12:48:17,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:17,597 INFO L93 Difference]: Finished difference Result 6072 states and 8735 transitions. [2022-10-16 12:48:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:48:17,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2022-10-16 12:48:17,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:17,611 INFO L225 Difference]: With dead ends: 6072 [2022-10-16 12:48:17,611 INFO L226 Difference]: Without dead ends: 3687 [2022-10-16 12:48:17,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 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 12:48:17,623 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 2015 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 1061 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1061 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:17,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2096 Valid, 1673 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1061 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-16 12:48:17,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2022-10-16 12:48:17,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 2326. [2022-10-16 12:48:17,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 1875 states have (on average 1.3626666666666667) internal successors, (2555), 1954 states have internal predecessors, (2555), 297 states have call successors, (297), 97 states have call predecessors, (297), 96 states have return successors, (296), 296 states have call predecessors, (296), 296 states have call successors, (296) [2022-10-16 12:48:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3148 transitions. [2022-10-16 12:48:17,948 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3148 transitions. Word has length 102 [2022-10-16 12:48:17,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:17,948 INFO L495 AbstractCegarLoop]: Abstraction has 2326 states and 3148 transitions. [2022-10-16 12:48:17,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-16 12:48:17,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3148 transitions. [2022-10-16 12:48:17,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 12:48:17,953 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:17,953 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:48:17,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 12:48:17,954 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting l1oip_socket_sendErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:17,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:17,954 INFO L85 PathProgramCache]: Analyzing trace with hash -478278671, now seen corresponding path program 1 times [2022-10-16 12:48:17,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:17,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878318431] [2022-10-16 12:48:17,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:17,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:48:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:48:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:48:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:48:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 12:48:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:48:18,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:18,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878318431] [2022-10-16 12:48:18,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878318431] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:18,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:18,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:48:18,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106731214] [2022-10-16 12:48:18,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:18,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:48:18,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:18,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:48:18,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:48:18,387 INFO L87 Difference]: Start difference. First operand 2326 states and 3148 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 12:48:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:21,541 INFO L93 Difference]: Finished difference Result 6022 states and 8449 transitions. [2022-10-16 12:48:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:48:21,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 108 [2022-10-16 12:48:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:21,555 INFO L225 Difference]: With dead ends: 6022 [2022-10-16 12:48:21,555 INFO L226 Difference]: Without dead ends: 3699 [2022-10-16 12:48:21,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 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 12:48:21,566 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 962 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:21,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 2412 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-16 12:48:21,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2022-10-16 12:48:22,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 2329. [2022-10-16 12:48:22,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 1878 states have (on average 1.362087326943557) internal successors, (2558), 1957 states have internal predecessors, (2558), 297 states have call successors, (297), 97 states have call predecessors, (297), 96 states have return successors, (296), 296 states have call predecessors, (296), 296 states have call successors, (296) [2022-10-16 12:48:22,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 3151 transitions. [2022-10-16 12:48:22,023 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 3151 transitions. Word has length 108 [2022-10-16 12:48:22,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:22,023 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 3151 transitions. [2022-10-16 12:48:22,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 12:48:22,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 3151 transitions. [2022-10-16 12:48:22,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 12:48:22,027 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:22,028 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:48:22,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 12:48:22,028 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting l1oip_socket_sendErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:22,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1287625297, now seen corresponding path program 1 times [2022-10-16 12:48:22,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:22,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709835100] [2022-10-16 12:48:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:22,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:48:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:48:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:48:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:48:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 12:48:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:48:22,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:22,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709835100] [2022-10-16 12:48:22,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709835100] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:22,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:22,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:48:22,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786840575] [2022-10-16 12:48:22,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:22,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:48:22,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:22,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:48:22,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:48:22,696 INFO L87 Difference]: Start difference. First operand 2329 states and 3151 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 12:48:26,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:26,777 INFO L93 Difference]: Finished difference Result 3940 states and 5614 transitions. [2022-10-16 12:48:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 12:48:26,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 108 [2022-10-16 12:48:26,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:26,791 INFO L225 Difference]: With dead ends: 3940 [2022-10-16 12:48:26,791 INFO L226 Difference]: Without dead ends: 3939 [2022-10-16 12:48:26,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-10-16 12:48:26,795 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 1125 mSDsluCounter, 2821 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 733 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 733 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:26,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 3639 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [733 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-10-16 12:48:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states. [2022-10-16 12:48:27,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 2512. [2022-10-16 12:48:27,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2512 states, 2037 states have (on average 1.3676975945017182) internal successors, (2786), 2119 states have internal predecessors, (2786), 318 states have call successors, (318), 100 states have call predecessors, (318), 99 states have return successors, (317), 317 states have call predecessors, (317), 317 states have call successors, (317) [2022-10-16 12:48:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2512 states to 2512 states and 3421 transitions. [2022-10-16 12:48:27,214 INFO L78 Accepts]: Start accepts. Automaton has 2512 states and 3421 transitions. Word has length 108 [2022-10-16 12:48:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:27,215 INFO L495 AbstractCegarLoop]: Abstraction has 2512 states and 3421 transitions. [2022-10-16 12:48:27,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 12:48:27,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2512 states and 3421 transitions. [2022-10-16 12:48:27,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 12:48:27,219 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:27,220 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:48:27,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 12:48:27,222 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting l1oip_socket_sendErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:27,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:27,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1261678046, now seen corresponding path program 1 times [2022-10-16 12:48:27,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:27,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234624919] [2022-10-16 12:48:27,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:27,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:48:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:48:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:48:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:48:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 12:48:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:48:27,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:27,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234624919] [2022-10-16 12:48:27,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234624919] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:27,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:27,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:48:27,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905666166] [2022-10-16 12:48:27,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:27,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:48:27,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:27,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:48:27,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:48:27,919 INFO L87 Difference]: Start difference. First operand 2512 states and 3421 transitions. Second operand has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 12:48:32,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:32,161 INFO L93 Difference]: Finished difference Result 4151 states and 5926 transitions. [2022-10-16 12:48:32,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 12:48:32,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 109 [2022-10-16 12:48:32,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:32,178 INFO L225 Difference]: With dead ends: 4151 [2022-10-16 12:48:32,178 INFO L226 Difference]: Without dead ends: 4150 [2022-10-16 12:48:32,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-10-16 12:48:32,182 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 1124 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 2533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:32,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 3658 Invalid, 2533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-16 12:48:32,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4150 states. [2022-10-16 12:48:32,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4150 to 2701. [2022-10-16 12:48:32,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2199 states have (on average 1.3706230104592996) internal successors, (3014), 2287 states have internal predecessors, (3014), 342 states have call successors, (342), 103 states have call predecessors, (342), 102 states have return successors, (341), 338 states have call predecessors, (341), 341 states have call successors, (341) [2022-10-16 12:48:32,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3697 transitions. [2022-10-16 12:48:32,623 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3697 transitions. Word has length 109 [2022-10-16 12:48:32,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:32,624 INFO L495 AbstractCegarLoop]: Abstraction has 2701 states and 3697 transitions. [2022-10-16 12:48:32,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-10-16 12:48:32,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3697 transitions. [2022-10-16 12:48:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 12:48:32,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:32,628 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:48:32,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 12:48:32,628 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting l1oip_socket_sendErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1204419744, now seen corresponding path program 1 times [2022-10-16 12:48:32,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:32,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12015489] [2022-10-16 12:48:32,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:32,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:48:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:48:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:48:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 12:48:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 12:48:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:33,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 12:48:33,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:33,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12015489] [2022-10-16 12:48:33,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12015489] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:33,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:33,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:48:33,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979569036] [2022-10-16 12:48:33,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:33,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:48:33,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:33,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:48:33,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:48:33,729 INFO L87 Difference]: Start difference. First operand 2701 states and 3697 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-16 12:48:39,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:39,916 INFO L93 Difference]: Finished difference Result 10635 states and 15135 transitions. [2022-10-16 12:48:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:48:39,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 109 [2022-10-16 12:48:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:39,953 INFO L225 Difference]: With dead ends: 10635 [2022-10-16 12:48:39,953 INFO L226 Difference]: Without dead ends: 7937 [2022-10-16 12:48:39,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 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 12:48:39,964 INFO L413 NwaCegarLoop]: 1097 mSDtfsCounter, 2095 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 2898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:39,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 3588 Invalid, 2898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [817 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-10-16 12:48:39,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7937 states. [2022-10-16 12:48:40,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7937 to 4681. [2022-10-16 12:48:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4681 states, 3839 states have (on average 1.3842146392289658) internal successors, (5314), 3953 states have internal predecessors, (5314), 608 states have call successors, (608), 181 states have call predecessors, (608), 176 states have return successors, (607), 590 states have call predecessors, (607), 607 states have call successors, (607) [2022-10-16 12:48:40,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 6529 transitions. [2022-10-16 12:48:40,750 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 6529 transitions. Word has length 109 [2022-10-16 12:48:40,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:40,750 INFO L495 AbstractCegarLoop]: Abstraction has 4681 states and 6529 transitions. [2022-10-16 12:48:40,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-10-16 12:48:40,751 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 6529 transitions. [2022-10-16 12:48:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-16 12:48:40,753 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:40,754 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 12:48:40,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 12:48:40,754 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:40,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1474849580, now seen corresponding path program 2 times [2022-10-16 12:48:40,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:40,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5758776] [2022-10-16 12:48:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:40,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:41,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:48:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:41,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:48:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 12:48:41,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:41,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5758776] [2022-10-16 12:48:41,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5758776] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:48:41,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652357225] [2022-10-16 12:48:41,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 12:48:41,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:48:41,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:48:41,356 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:48:41,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 12:48:42,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 12:48:42,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 12:48:42,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 3275 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 12:48:42,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:48:42,648 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-10-16 12:48:42,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:48:42,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652357225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:42,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:48:42,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-10-16 12:48:42,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618587148] [2022-10-16 12:48:42,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:42,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:48:42,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:42,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:48:42,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-10-16 12:48:42,652 INFO L87 Difference]: Start difference. First operand 4681 states and 6529 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 12:48:43,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:43,438 INFO L93 Difference]: Finished difference Result 9903 states and 13749 transitions. [2022-10-16 12:48:43,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 12:48:43,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 111 [2022-10-16 12:48:43,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:43,459 INFO L225 Difference]: With dead ends: 9903 [2022-10-16 12:48:43,460 INFO L226 Difference]: Without dead ends: 5225 [2022-10-16 12:48:43,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-10-16 12:48:43,475 INFO L413 NwaCegarLoop]: 1133 mSDtfsCounter, 756 mSDsluCounter, 5317 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 6450 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:43,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 6450 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:48:43,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5225 states. [2022-10-16 12:48:44,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5225 to 4707. [2022-10-16 12:48:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4707 states, 3855 states have (on average 1.3826199740596627) internal successors, (5330), 3973 states have internal predecessors, (5330), 610 states have call successors, (610), 181 states have call predecessors, (610), 184 states have return successors, (637), 596 states have call predecessors, (637), 609 states have call successors, (637) [2022-10-16 12:48:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4707 states to 4707 states and 6577 transitions. [2022-10-16 12:48:44,061 INFO L78 Accepts]: Start accepts. Automaton has 4707 states and 6577 transitions. Word has length 111 [2022-10-16 12:48:44,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:44,061 INFO L495 AbstractCegarLoop]: Abstraction has 4707 states and 6577 transitions. [2022-10-16 12:48:44,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 12:48:44,062 INFO L276 IsEmpty]: Start isEmpty. Operand 4707 states and 6577 transitions. [2022-10-16 12:48:44,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 12:48:44,064 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:44,064 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-16 12:48:44,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 12:48:44,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 12:48:44,279 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:44,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:44,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1844060240, now seen corresponding path program 1 times [2022-10-16 12:48:44,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:44,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417950039] [2022-10-16 12:48:44,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:44,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:44,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:44,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:44,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:48:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:44,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:44,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:48:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:44,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 12:48:44,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:44,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417950039] [2022-10-16 12:48:44,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417950039] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:48:44,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975319914] [2022-10-16 12:48:44,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:44,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:48:44,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:48:44,886 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:48:44,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 12:48:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:45,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 3527 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 12:48:45,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:48:45,962 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:48:45,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:48:46,181 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:48:46,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975319914] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:48:46,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:48:46,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2022-10-16 12:48:46,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718248339] [2022-10-16 12:48:46,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:48:46,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 12:48:46,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:46,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 12:48:46,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-10-16 12:48:46,185 INFO L87 Difference]: Start difference. First operand 4707 states and 6577 transitions. Second operand has 16 states, 16 states have (on average 11.125) internal successors, (178), 14 states have internal predecessors, (178), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:48:52,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:52,152 INFO L93 Difference]: Finished difference Result 14081 states and 20219 transitions. [2022-10-16 12:48:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 12:48:52,154 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.125) internal successors, (178), 14 states have internal predecessors, (178), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 114 [2022-10-16 12:48:52,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:52,186 INFO L225 Difference]: With dead ends: 14081 [2022-10-16 12:48:52,186 INFO L226 Difference]: Without dead ends: 9377 [2022-10-16 12:48:52,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 12:48:52,201 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 3416 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 3276 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3480 SdHoareTripleChecker+Valid, 5643 SdHoareTripleChecker+Invalid, 4116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 3276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:52,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3480 Valid, 5643 Invalid, 4116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 3276 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-16 12:48:52,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9377 states. [2022-10-16 12:48:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9377 to 4730. [2022-10-16 12:48:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4730 states, 3884 states have (on average 1.3761585993820804) internal successors, (5345), 3996 states have internal predecessors, (5345), 610 states have call successors, (610), 181 states have call predecessors, (610), 184 states have return successors, (637), 596 states have call predecessors, (637), 609 states have call successors, (637) [2022-10-16 12:48:52,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4730 states to 4730 states and 6592 transitions. [2022-10-16 12:48:52,812 INFO L78 Accepts]: Start accepts. Automaton has 4730 states and 6592 transitions. Word has length 114 [2022-10-16 12:48:52,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:52,812 INFO L495 AbstractCegarLoop]: Abstraction has 4730 states and 6592 transitions. [2022-10-16 12:48:52,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.125) internal successors, (178), 14 states have internal predecessors, (178), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:48:52,813 INFO L276 IsEmpty]: Start isEmpty. Operand 4730 states and 6592 transitions. [2022-10-16 12:48:52,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 12:48:52,816 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:52,817 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:48:52,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 12:48:53,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:48:53,031 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting l1oip_socket_sendErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:53,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:53,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1274354370, now seen corresponding path program 1 times [2022-10-16 12:48:53,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:53,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251895180] [2022-10-16 12:48:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:53,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:48:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:48:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:48:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:48:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:48:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:48:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:48:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:48:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 12:48:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 12:48:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 12:48:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:48:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:48:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:48:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:48:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 12:48:53,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:48:53,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251895180] [2022-10-16 12:48:53,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251895180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:48:53,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:48:53,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 12:48:53,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523641628] [2022-10-16 12:48:53,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:48:53,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:48:53,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:48:53,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:48:53,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:48:53,630 INFO L87 Difference]: Start difference. First operand 4730 states and 6592 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 12:48:59,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:48:59,221 INFO L93 Difference]: Finished difference Result 11751 states and 16745 transitions. [2022-10-16 12:48:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 12:48:59,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-10-16 12:48:59,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:48:59,252 INFO L225 Difference]: With dead ends: 11751 [2022-10-16 12:48:59,252 INFO L226 Difference]: Without dead ends: 7014 [2022-10-16 12:48:59,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:48:59,268 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1256 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 3141 mSolverCounterSat, 675 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 3816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 675 IncrementalHoareTripleChecker+Valid, 3141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:48:59,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 2435 Invalid, 3816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [675 Valid, 3141 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-16 12:48:59,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7014 states. [2022-10-16 12:48:59,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7014 to 4723. [2022-10-16 12:48:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4723 states, 3877 states have (on average 1.3763218983750323) internal successors, (5336), 3994 states have internal predecessors, (5336), 610 states have call successors, (610), 181 states have call predecessors, (610), 184 states have return successors, (629), 591 states have call predecessors, (629), 601 states have call successors, (629) [2022-10-16 12:48:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4723 states to 4723 states and 6575 transitions. [2022-10-16 12:48:59,927 INFO L78 Accepts]: Start accepts. Automaton has 4723 states and 6575 transitions. Word has length 138 [2022-10-16 12:48:59,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:48:59,927 INFO L495 AbstractCegarLoop]: Abstraction has 4723 states and 6575 transitions. [2022-10-16 12:48:59,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 12:48:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4723 states and 6575 transitions. [2022-10-16 12:48:59,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-16 12:48:59,931 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:48:59,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:59,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 12:48:59,932 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting l1oip_socket_sendErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:48:59,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:48:59,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1990104013, now seen corresponding path program 1 times [2022-10-16 12:48:59,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:48:59,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838739905] [2022-10-16 12:48:59,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:48:59,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:49:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:49:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:49:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:49:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:49:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:49:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 12:49:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:49:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:49:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:49:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:49:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:49:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 12:49:00,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:00,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838739905] [2022-10-16 12:49:00,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838739905] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:00,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:00,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 12:49:00,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745408486] [2022-10-16 12:49:00,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:00,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:49:00,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:00,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:49:00,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:49:00,570 INFO L87 Difference]: Start difference. First operand 4723 states and 6575 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 12:49:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:05,471 INFO L93 Difference]: Finished difference Result 8959 states and 12583 transitions. [2022-10-16 12:49:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 12:49:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-10-16 12:49:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:05,488 INFO L225 Difference]: With dead ends: 8959 [2022-10-16 12:49:05,489 INFO L226 Difference]: Without dead ends: 4216 [2022-10-16 12:49:05,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:49:05,504 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1687 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 1124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 3609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1124 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:05,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 2185 Invalid, 3609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1124 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-10-16 12:49:05,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4216 states. [2022-10-16 12:49:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4216 to 2780. [2022-10-16 12:49:06,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2269 states have (on average 1.357866901718819) internal successors, (3081), 2361 states have internal predecessors, (3081), 346 states have call successors, (346), 108 states have call predecessors, (346), 113 states have return successors, (355), 338 states have call predecessors, (355), 341 states have call successors, (355) [2022-10-16 12:49:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3782 transitions. [2022-10-16 12:49:06,062 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3782 transitions. Word has length 139 [2022-10-16 12:49:06,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:06,062 INFO L495 AbstractCegarLoop]: Abstraction has 2780 states and 3782 transitions. [2022-10-16 12:49:06,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 12:49:06,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3782 transitions. [2022-10-16 12:49:06,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-16 12:49:06,065 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:06,065 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2022-10-16 12:49:06,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 12:49:06,065 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:49:06,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:06,066 INFO L85 PathProgramCache]: Analyzing trace with hash -309945489, now seen corresponding path program 1 times [2022-10-16 12:49:06,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:06,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651851616] [2022-10-16 12:49:06,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:06,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:06,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:49:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:49:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:06,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:49:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:06,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:49:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:06,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:49:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:07,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2022-10-16 12:49:07,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:07,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651851616] [2022-10-16 12:49:07,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651851616] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:49:07,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008254067] [2022-10-16 12:49:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:07,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:49:07,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:49:07,022 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:49:07,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 12:49:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:07,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 3781 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 12:49:07,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:49:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 1 proven. 595 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:49:08,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:49:08,958 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 1 proven. 595 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:49:08,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008254067] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:49:08,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:49:08,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 13] total 28 [2022-10-16 12:49:08,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597042916] [2022-10-16 12:49:08,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:49:08,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 12:49:08,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:08,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 12:49:08,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=471, Unknown=0, NotChecked=0, Total=756 [2022-10-16 12:49:08,962 INFO L87 Difference]: Start difference. First operand 2780 states and 3782 transitions. Second operand has 28 states, 28 states have (on average 11.928571428571429) internal successors, (334), 26 states have internal predecessors, (334), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:49:15,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:15,793 INFO L93 Difference]: Finished difference Result 10191 states and 14024 transitions. [2022-10-16 12:49:15,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-10-16 12:49:15,794 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 11.928571428571429) internal successors, (334), 26 states have internal predecessors, (334), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 197 [2022-10-16 12:49:15,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:15,815 INFO L225 Difference]: With dead ends: 10191 [2022-10-16 12:49:15,815 INFO L226 Difference]: Without dead ends: 7414 [2022-10-16 12:49:15,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1664, Invalid=3592, Unknown=0, NotChecked=0, Total=5256 [2022-10-16 12:49:15,826 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 6009 mSDsluCounter, 4364 mSDsCounter, 0 mSdLazyCounter, 2908 mSolverCounterSat, 938 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6115 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 3846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 938 IncrementalHoareTripleChecker+Valid, 2908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:15,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6115 Valid, 5174 Invalid, 3846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [938 Valid, 2908 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-16 12:49:15,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2022-10-16 12:49:16,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 3455. [2022-10-16 12:49:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 2944 states have (on average 1.2880434782608696) internal successors, (3792), 3036 states have internal predecessors, (3792), 346 states have call successors, (346), 108 states have call predecessors, (346), 113 states have return successors, (355), 338 states have call predecessors, (355), 341 states have call successors, (355) [2022-10-16 12:49:16,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 4493 transitions. [2022-10-16 12:49:16,320 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 4493 transitions. Word has length 197 [2022-10-16 12:49:16,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:16,321 INFO L495 AbstractCegarLoop]: Abstraction has 3455 states and 4493 transitions. [2022-10-16 12:49:16,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 11.928571428571429) internal successors, (334), 26 states have internal predecessors, (334), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:49:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 4493 transitions. [2022-10-16 12:49:16,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-10-16 12:49:16,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:16,326 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 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] [2022-10-16 12:49:16,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 12:49:16,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:49:16,540 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:49:16,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:16,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1283699768, now seen corresponding path program 2 times [2022-10-16 12:49:16,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:16,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557941922] [2022-10-16 12:49:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:16,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:18,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:49:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:18,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:49:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:49:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:18,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:49:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:18,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:18,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:49:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:18,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:18,892 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12403 trivial. 0 not checked. [2022-10-16 12:49:18,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:18,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557941922] [2022-10-16 12:49:18,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557941922] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:49:18,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:49:18,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:49:18,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095905723] [2022-10-16 12:49:18,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:49:18,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:49:18,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:18,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:49:18,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:49:18,896 INFO L87 Difference]: Start difference. First operand 3455 states and 4493 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:49:22,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:22,080 INFO L93 Difference]: Finished difference Result 5840 states and 8135 transitions. [2022-10-16 12:49:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:49:22,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 645 [2022-10-16 12:49:22,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:22,099 INFO L225 Difference]: With dead ends: 5840 [2022-10-16 12:49:22,099 INFO L226 Difference]: Without dead ends: 5839 [2022-10-16 12:49:22,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:49:22,103 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 966 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:22,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 2427 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 12:49:22,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5839 states. [2022-10-16 12:49:23,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5839 to 3454. [2022-10-16 12:49:23,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 2944 states have (on average 1.280570652173913) internal successors, (3770), 3035 states have internal predecessors, (3770), 346 states have call successors, (346), 108 states have call predecessors, (346), 113 states have return successors, (355), 338 states have call predecessors, (355), 341 states have call successors, (355) [2022-10-16 12:49:23,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 4471 transitions. [2022-10-16 12:49:23,014 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 4471 transitions. Word has length 645 [2022-10-16 12:49:23,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:23,017 INFO L495 AbstractCegarLoop]: Abstraction has 3454 states and 4471 transitions. [2022-10-16 12:49:23,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:49:23,018 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 4471 transitions. [2022-10-16 12:49:23,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2022-10-16 12:49:23,023 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:23,024 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 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] [2022-10-16 12:49:23,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-16 12:49:23,024 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:49:23,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:23,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1139988109, now seen corresponding path program 1 times [2022-10-16 12:49:23,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:23,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700197956] [2022-10-16 12:49:23,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:23,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:29,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:49:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:29,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:49:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:29,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:49:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:29,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:49:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:29,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:29,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:49:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:29,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:49:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 6341 proven. 3025 refuted. 0 times theorem prover too weak. 3037 trivial. 0 not checked. [2022-10-16 12:49:29,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:49:29,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700197956] [2022-10-16 12:49:29,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700197956] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:49:29,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199000334] [2022-10-16 12:49:29,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:29,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:49:29,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:49:29,445 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:49:29,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 12:49:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:49:31,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 5188 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 12:49:31,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:49:31,774 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 6341 proven. 3025 refuted. 0 times theorem prover too weak. 3037 trivial. 0 not checked. [2022-10-16 12:49:31,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:49:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 6341 proven. 3025 refuted. 0 times theorem prover too weak. 3037 trivial. 0 not checked. [2022-10-16 12:49:33,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199000334] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:49:33,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:49:33,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 25] total 51 [2022-10-16 12:49:33,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383315925] [2022-10-16 12:49:33,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:49:33,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 12:49:33,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:49:33,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 12:49:33,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1180, Invalid=1370, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 12:49:33,507 INFO L87 Difference]: Start difference. First operand 3454 states and 4471 transitions. Second operand has 51 states, 51 states have (on average 12.882352941176471) internal successors, (657), 49 states have internal predecessors, (657), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:49:39,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:49:39,749 INFO L93 Difference]: Finished difference Result 10059 states and 13403 transitions. [2022-10-16 12:49:39,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-16 12:49:39,750 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 12.882352941176471) internal successors, (657), 49 states have internal predecessors, (657), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 646 [2022-10-16 12:49:39,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:49:39,771 INFO L225 Difference]: With dead ends: 10059 [2022-10-16 12:49:39,771 INFO L226 Difference]: Without dead ends: 6608 [2022-10-16 12:49:39,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1331 GetRequests, 1281 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1184, Invalid=1468, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 12:49:39,781 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 2983 mSDsluCounter, 5511 mSDsCounter, 0 mSdLazyCounter, 3397 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3069 SdHoareTripleChecker+Valid, 6346 SdHoareTripleChecker+Invalid, 4080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 3397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:49:39,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3069 Valid, 6346 Invalid, 4080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 3397 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-10-16 12:49:39,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6608 states. [2022-10-16 12:49:40,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6608 to 4208. [2022-10-16 12:49:40,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4208 states, 3698 states have (on average 1.2260681449432125) internal successors, (4534), 3789 states have internal predecessors, (4534), 346 states have call successors, (346), 108 states have call predecessors, (346), 113 states have return successors, (355), 338 states have call predecessors, (355), 341 states have call successors, (355) [2022-10-16 12:49:40,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4208 states to 4208 states and 5235 transitions. [2022-10-16 12:49:40,523 INFO L78 Accepts]: Start accepts. Automaton has 4208 states and 5235 transitions. Word has length 646 [2022-10-16 12:49:40,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:49:40,524 INFO L495 AbstractCegarLoop]: Abstraction has 4208 states and 5235 transitions. [2022-10-16 12:49:40,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 12.882352941176471) internal successors, (657), 49 states have internal predecessors, (657), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:49:40,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4208 states and 5235 transitions. [2022-10-16 12:49:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1271 [2022-10-16 12:49:40,540 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:49:40,541 INFO L195 NwaCegarLoop]: trace histogram [92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 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] [2022-10-16 12:49:40,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 12:49:40,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 12:49:40,758 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:49:40,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:49:40,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1623996045, now seen corresponding path program 2 times [2022-10-16 12:49:40,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:49:40,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894786975] [2022-10-16 12:49:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:49:40,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:49:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:01,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 12:50:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:01,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-16 12:50:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 12:50:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:50:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:50:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:50:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:01,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:50:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:50:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 54619 backedges. 27605 proven. 13501 refuted. 0 times theorem prover too weak. 13513 trivial. 0 not checked. [2022-10-16 12:50:01,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:50:01,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894786975] [2022-10-16 12:50:01,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894786975] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:50:01,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108511172] [2022-10-16 12:50:01,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 12:50:01,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:50:01,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:50:01,627 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:50:01,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 12:50:03,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 12:50:03,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 12:50:03,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 3314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:50:03,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:50:03,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-10-16 12:50:03,332 INFO L134 CoverageAnalysis]: Checked inductivity of 54619 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54619 trivial. 0 not checked. [2022-10-16 12:50:03,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:50:03,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108511172] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:50:03,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:50:03,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [51] total 52 [2022-10-16 12:50:03,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905437040] [2022-10-16 12:50:03,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:50:03,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:50:03,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:50:03,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:50:03,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1182, Invalid=1470, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 12:50:03,337 INFO L87 Difference]: Start difference. First operand 4208 states and 5235 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:50:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:50:04,293 INFO L93 Difference]: Finished difference Result 5221 states and 6739 transitions. [2022-10-16 12:50:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:50:04,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 1270 [2022-10-16 12:50:04,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:50:04,312 INFO L225 Difference]: With dead ends: 5221 [2022-10-16 12:50:04,313 INFO L226 Difference]: Without dead ends: 5220 [2022-10-16 12:50:04,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1332 GetRequests, 1282 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1182, Invalid=1470, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 12:50:04,318 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 227 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:50:04,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 1650 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:50:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5220 states. [2022-10-16 12:50:04,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5220 to 4207. [2022-10-16 12:50:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4207 states, 3698 states have (on average 1.2174148188209843) internal successors, (4502), 3788 states have internal predecessors, (4502), 346 states have call successors, (346), 108 states have call predecessors, (346), 113 states have return successors, (355), 338 states have call predecessors, (355), 341 states have call successors, (355) [2022-10-16 12:50:04,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4207 states to 4207 states and 5203 transitions. [2022-10-16 12:50:04,974 INFO L78 Accepts]: Start accepts. Automaton has 4207 states and 5203 transitions. Word has length 1270 [2022-10-16 12:50:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:50:04,977 INFO L495 AbstractCegarLoop]: Abstraction has 4207 states and 5203 transitions. [2022-10-16 12:50:04,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 12:50:04,978 INFO L276 IsEmpty]: Start isEmpty. Operand 4207 states and 5203 transitions. [2022-10-16 12:50:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1776 [2022-10-16 12:50:05,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:50:05,007 INFO L195 NwaCegarLoop]: trace histogram [92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:50:05,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 12:50:05,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:50:05,220 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting l1oip_socket_sendErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-16 12:50:05,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:50:05,223 INFO L85 PathProgramCache]: Analyzing trace with hash 515045452, now seen corresponding path program 1 times [2022-10-16 12:50:05,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:50:05,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441068921] [2022-10-16 12:50:05,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:50:05,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:50:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat