/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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:26:53,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:26:53,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:26:53,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:26:53,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:26:53,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:26:53,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:26:53,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:26:53,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:26:53,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:26:53,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:26:53,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:26:53,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:26:53,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:26:53,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:26:53,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:26:53,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:26:53,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:26:53,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:26:53,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:26:53,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:26:53,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:26:53,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:26:53,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:26:53,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:26:53,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:26:53,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:26:53,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:26:53,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:26:53,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:26:53,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:26:53,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:26:53,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:26:53,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:26:53,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:26:53,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:26:53,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:26:53,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:26:53,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:26:53,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:26:53,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:26:53,502 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 13:26:53,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:26:53,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:26:53,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:26:53,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:26:53,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:26:53,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:26:53,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:26:53,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:26:53,536 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:26:53,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:26:53,537 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:26:53,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:26:53,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:26:53,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:26:53,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:26:53,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:26:53,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:26:53,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:26:53,538 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:26:53,538 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:26:53,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:26:53,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:26:53,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:26:53,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:26:53,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:26:53,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:26:53,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:26:53,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:26:53,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:26:53,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:26:53,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:26:53,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:26:53,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:26:53,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:26:53,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:26:53,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:26:53,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:26:53,971 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:26:53,972 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:26:53,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i [2022-10-16 13:26:54,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe6628ba/52244a3aa0564031965989d2d310d227/FLAGcf9afcce8 [2022-10-16 13:26:55,474 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:26:55,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i [2022-10-16 13:26:55,558 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe6628ba/52244a3aa0564031965989d2d310d227/FLAGcf9afcce8 [2022-10-16 13:26:56,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe6628ba/52244a3aa0564031965989d2d310d227 [2022-10-16 13:26:56,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:26:56,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:26:56,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:26:56,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:26:56,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:26:56,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:26:56" (1/1) ... [2022-10-16 13:26:56,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3606a02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:56, skipping insertion in model container [2022-10-16 13:26:56,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:26:56" (1/1) ... [2022-10-16 13:26:56,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:26:56,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:26:57,138 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-10-16 13:26:57,139 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6622-6623] [2022-10-16 13:26:58,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i[213931,213944] [2022-10-16 13:27:00,363 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-10-16 13:27:00,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:27:00,427 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:27:00,586 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-10-16 13:27:00,587 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6622-6623] [2022-10-16 13:27:00,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i[213931,213944] [2022-10-16 13:27:01,134 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-10-16 13:27:01,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:27:01,336 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:27:01,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01 WrapperNode [2022-10-16 13:27:01,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:27:01,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:27:01,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:27:01,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:27:01,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:01,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:01,955 INFO L138 Inliner]: procedures = 383, calls = 6912, calls flagged for inlining = 191, calls inlined = 77, statements flattened = 11404 [2022-10-16 13:27:01,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:27:01,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:27:01,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:27:01,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:27:01,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:01,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:02,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:02,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:02,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:02,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:02,346 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:02,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:02,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:27:02,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:27:02,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:27:02,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:27:02,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (1/1) ... [2022-10-16 13:27:02,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:27:02,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:27:02,476 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 13:27:02,495 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 13:27:02,545 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-16 13:27:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-16 13:27:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-16 13:27:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-16 13:27:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_write [2022-10-16 13:27:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_write [2022-10-16 13:27:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure strn_len [2022-10-16 13:27:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure strn_len [2022-10-16 13:27:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-10-16 13:27:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:27:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:27:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-10-16 13:27:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-10-16 13:27:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-16 13:27:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-16 13:27:02,547 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-16 13:27:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-16 13:27:02,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-16 13:27:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-16 13:27:02,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:27:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:27:02,548 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-10-16 13:27:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-10-16 13:27:02,548 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_write [2022-10-16 13:27:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_write [2022-10-16 13:27:02,549 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-16 13:27:02,549 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 13:27:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 13:27:02,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:27:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:27:02,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 13:27:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 13:27:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:27:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:27:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure count_trail_chars [2022-10-16 13:27:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure count_trail_chars [2022-10-16 13:27:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net [2022-10-16 13:27:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net [2022-10-16 13:27:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:27:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 13:27:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 13:27:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-10-16 13:27:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-10-16 13:27:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-16 13:27:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-16 13:27:02,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:27:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-10-16 13:27:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-10-16 13:27:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-10-16 13:27:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-10-16 13:27:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-16 13:27:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-16 13:27:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-16 13:27:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-16 13:27:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:27:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:27:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2022-10-16 13:27:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2022-10-16 13:27:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 13:27:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 13:27:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2022-10-16 13:27:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2022-10-16 13:27:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure hex32_arg [2022-10-16 13:27:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure hex32_arg [2022-10-16 13:27:02,557 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-16 13:27:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-16 13:27:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2022-10-16 13:27:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2022-10-16 13:27:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure num_arg [2022-10-16 13:27:02,559 INFO L138 BoogieDeclarations]: Found implementation of procedure num_arg [2022-10-16 13:27:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 13:27:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 13:27:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-16 13:27:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-16 13:27:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_open [2022-10-16 13:27:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_open [2022-10-16 13:27:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:27:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:27:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 13:27:02,561 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 13:27:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-16 13:27:02,562 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-16 13:27:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:27:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-10-16 13:27:02,562 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-10-16 13:27:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:27:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-10-16 13:27:02,563 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-10-16 13:27:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_write [2022-10-16 13:27:02,564 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_write [2022-10-16 13:27:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-10-16 13:27:02,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-10-16 13:27:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 13:27:02,564 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 13:27:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-10-16 13:27:02,565 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-10-16 13:27:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 13:27:02,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 13:27:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-10-16 13:27:02,565 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-10-16 13:27:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-10-16 13:27:02,565 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-10-16 13:27:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:27:02,566 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:27:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-10-16 13:27:02,566 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-10-16 13:27:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:27:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-10-16 13:27:02,567 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-10-16 13:27:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_clear_counters [2022-10-16 13:27:02,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_clear_counters [2022-10-16 13:27:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2022-10-16 13:27:02,567 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2022-10-16 13:27:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:27:02,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:27:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-10-16 13:27:02,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-10-16 13:27:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure in6_pton [2022-10-16 13:27:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure in6_pton [2022-10-16 13:27:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2022-10-16 13:27:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2022-10-16 13:27:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-10-16 13:27:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-10-16 13:27:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:27:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-10-16 13:27:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-10-16 13:27:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-16 13:27:02,581 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-16 13:27:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-16 13:27:02,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-16 13:27:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:27:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:27:02,582 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-10-16 13:27:02,582 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-10-16 13:27:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure __pktgen_NN_threads [2022-10-16 13:27:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __pktgen_NN_threads [2022-10-16 13:27:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 13:27:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_wait_all_threads_run [2022-10-16 13:27:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_wait_all_threads_run [2022-10-16 13:27:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-10-16 13:27:02,583 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-10-16 13:27:02,583 INFO L130 BoogieDeclarations]: Found specification of procedure in_aton [2022-10-16 13:27:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure in_aton [2022-10-16 13:27:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure mac_pton [2022-10-16 13:27:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_pton [2022-10-16 13:27:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_subsys [2022-10-16 13:27:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_subsys [2022-10-16 13:27:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-10-16 13:27:02,584 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-10-16 13:27:02,584 INFO L130 BoogieDeclarations]: Found specification of procedure proc_remove [2022-10-16 13:27:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_remove [2022-10-16 13:27:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure free_SAs [2022-10-16 13:27:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure free_SAs [2022-10-16 13:27:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-10-16 13:27:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-10-16 13:27:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-16 13:27:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-16 13:27:02,585 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_open [2022-10-16 13:27:02,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_open [2022-10-16 13:27:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-16 13:27:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-16 13:27:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-10-16 13:27:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-10-16 13:27:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:27:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_open [2022-10-16 13:27:02,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_open [2022-10-16 13:27:02,586 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-10-16 13:27:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:27:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:27:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 13:27:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 13:27:03,398 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:27:03,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:27:25,327 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:27:30,069 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:27:30,097 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:27:30,097 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 13:27:30,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:27:30 BoogieIcfgContainer [2022-10-16 13:27:30,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:27:30,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:27:30,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:27:30,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:27:30,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:26:56" (1/3) ... [2022-10-16 13:27:30,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243e1daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:27:30, skipping insertion in model container [2022-10-16 13:27:30,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:01" (2/3) ... [2022-10-16 13:27:30,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243e1daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:27:30, skipping insertion in model container [2022-10-16 13:27:30,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:27:30" (3/3) ... [2022-10-16 13:27:30,115 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i [2022-10-16 13:27:30,139 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:27:30,139 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 132 error locations. [2022-10-16 13:27:30,284 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:27:30,296 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;@7244a565, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:27:30,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2022-10-16 13:27:30,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 1789 states, 1269 states have (on average 1.5106382978723405) internal successors, (1917), 1417 states have internal predecessors, (1917), 311 states have call successors, (311), 77 states have call predecessors, (311), 76 states have return successors, (304), 303 states have call predecessors, (304), 304 states have call successors, (304) [2022-10-16 13:27:30,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 13:27:30,350 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:30,351 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:27:30,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pktgen_if_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pktgen_if_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pktgen_if_writeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 129 more)] === [2022-10-16 13:27:30,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:30,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1949563433, now seen corresponding path program 1 times [2022-10-16 13:27:30,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:30,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504397278] [2022-10-16 13:27:30,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:30,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 13:27:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:31,613 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-16 13:27:31,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:31,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504397278] [2022-10-16 13:27:31,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504397278] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:31,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:31,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:27:31,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098041370] [2022-10-16 13:27:31,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:31,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:31,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:31,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:31,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:31,671 INFO L87 Difference]: Start difference. First operand has 1789 states, 1269 states have (on average 1.5106382978723405) internal successors, (1917), 1417 states have internal predecessors, (1917), 311 states have call successors, (311), 77 states have call predecessors, (311), 76 states have return successors, (304), 303 states have call predecessors, (304), 304 states have call successors, (304) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 13:27:57,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:27:59,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:01,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:09,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:09,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:09,991 INFO L93 Difference]: Finished difference Result 5264 states and 7562 transitions. [2022-10-16 13:28:09,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:28:09,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 99 [2022-10-16 13:28:09,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:10,043 INFO L225 Difference]: With dead ends: 5264 [2022-10-16 13:28:10,043 INFO L226 Difference]: Without dead ends: 3437 [2022-10-16 13:28:10,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 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 13:28:10,070 INFO L413 NwaCegarLoop]: 2681 mSDtfsCounter, 3086 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 690 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3309 SdHoareTripleChecker+Valid, 5451 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:10,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3309 Valid, 5451 Invalid, 2435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [690 Valid, 1741 Invalid, 4 Unknown, 0 Unchecked, 37.7s Time] [2022-10-16 13:28:10,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3437 states. [2022-10-16 13:28:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3437 to 3210. [2022-10-16 13:28:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 2385 states have (on average 1.5115303983228512) internal successors, (3605), 2530 states have internal predecessors, (3605), 549 states have call successors, (549), 144 states have call predecessors, (549), 144 states have return successors, (549), 547 states have call predecessors, (549), 549 states have call successors, (549) [2022-10-16 13:28:10,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 4703 transitions. [2022-10-16 13:28:10,441 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 4703 transitions. Word has length 99 [2022-10-16 13:28:10,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:10,447 INFO L495 AbstractCegarLoop]: Abstraction has 3210 states and 4703 transitions. [2022-10-16 13:28:10,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 13:28:10,448 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 4703 transitions. [2022-10-16 13:28:10,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 13:28:10,458 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:10,459 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:10,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:28:10,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [pktgen_if_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pktgen_if_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pktgen_if_writeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 129 more)] === [2022-10-16 13:28:10,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:10,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1990882192, now seen corresponding path program 1 times [2022-10-16 13:28:10,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:10,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409011262] [2022-10-16 13:28:10,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:10,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:28:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:28:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:28:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:28:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:28:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:28:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:28:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:28:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:28:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:28:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:28:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:28:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:11,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:28:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:11,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:28:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:11,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 13:28:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-16 13:28:11,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:28:11,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409011262] [2022-10-16 13:28:11,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409011262] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:28:11,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:28:11,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:28:11,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284376230] [2022-10-16 13:28:11,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:28:11,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:28:11,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:28:11,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:28:11,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:28:11,041 INFO L87 Difference]: Start difference. First operand 3210 states and 4703 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 13:28:40,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:42,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:44,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:28:49,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:49,890 INFO L93 Difference]: Finished difference Result 8340 states and 12124 transitions. [2022-10-16 13:28:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:28:49,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2022-10-16 13:28:49,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:49,934 INFO L225 Difference]: With dead ends: 8340 [2022-10-16 13:28:49,934 INFO L226 Difference]: Without dead ends: 5161 [2022-10-16 13:28:49,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 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 13:28:49,956 INFO L413 NwaCegarLoop]: 2743 mSDtfsCounter, 2193 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 588 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 5523 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:49,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2360 Valid, 5523 Invalid, 2305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [588 Valid, 1714 Invalid, 3 Unknown, 0 Unchecked, 38.4s Time] [2022-10-16 13:28:49,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5161 states. [2022-10-16 13:28:50,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5161 to 4947. [2022-10-16 13:28:50,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4947 states, 3696 states have (on average 1.475108225108225) internal successors, (5452), 3856 states have internal predecessors, (5452), 854 states have call successors, (854), 265 states have call predecessors, (854), 265 states have return successors, (854), 849 states have call predecessors, (854), 854 states have call successors, (854) [2022-10-16 13:28:50,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4947 states to 4947 states and 7160 transitions. [2022-10-16 13:28:50,326 INFO L78 Accepts]: Start accepts. Automaton has 4947 states and 7160 transitions. Word has length 102 [2022-10-16 13:28:50,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:50,328 INFO L495 AbstractCegarLoop]: Abstraction has 4947 states and 7160 transitions. [2022-10-16 13:28:50,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 13:28:50,328 INFO L276 IsEmpty]: Start isEmpty. Operand 4947 states and 7160 transitions. [2022-10-16 13:28:50,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 13:28:50,331 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:50,331 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:50,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:28:50,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [pktgen_if_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pktgen_if_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pktgen_if_writeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 129 more)] === [2022-10-16 13:28:50,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:50,333 INFO L85 PathProgramCache]: Analyzing trace with hash 491638838, now seen corresponding path program 1 times [2022-10-16 13:28:50,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:50,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380558175] [2022-10-16 13:28:50,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:50,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:28:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:28:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:28:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:28:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:28:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:28:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:28:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:28:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:28:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:28:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:28:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:28:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:28:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:28:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 13:28:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-10-16 13:28:50,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:28:50,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380558175] [2022-10-16 13:28:50,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380558175] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:28:50,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:28:50,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:28:50,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899406055] [2022-10-16 13:28:50,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:28:50,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:28:50,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:28:50,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:28:50,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:28:50,943 INFO L87 Difference]: Start difference. First operand 4947 states and 7160 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 13:29:41,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:29:43,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:29:45,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:29:52,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:29:54,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:29:56,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:30:05,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:30:05,878 INFO L93 Difference]: Finished difference Result 13820 states and 19941 transitions. [2022-10-16 13:30:05,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:30:05,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 103 [2022-10-16 13:30:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:30:05,951 INFO L225 Difference]: With dead ends: 13820 [2022-10-16 13:30:05,952 INFO L226 Difference]: Without dead ends: 8904 [2022-10-16 13:30:05,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 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 13:30:05,984 INFO L413 NwaCegarLoop]: 3782 mSDtfsCounter, 2595 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 2041 mSolverCounterSat, 557 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 7108 SdHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 557 IncrementalHoareTripleChecker+Valid, 2041 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:30:05,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2802 Valid, 7108 Invalid, 2604 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [557 Valid, 2041 Invalid, 6 Unknown, 0 Unchecked, 74.5s Time] [2022-10-16 13:30:06,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8904 states. [2022-10-16 13:30:06,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8904 to 8519. [2022-10-16 13:30:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8519 states, 6415 states have (on average 1.4662509742790335) internal successors, (9406), 6601 states have internal predecessors, (9406), 1491 states have call successors, (1491), 481 states have call predecessors, (1491), 481 states have return successors, (1491), 1484 states have call predecessors, (1491), 1491 states have call successors, (1491) [2022-10-16 13:30:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8519 states to 8519 states and 12388 transitions. [2022-10-16 13:30:06,491 INFO L78 Accepts]: Start accepts. Automaton has 8519 states and 12388 transitions. Word has length 103 [2022-10-16 13:30:06,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:30:06,492 INFO L495 AbstractCegarLoop]: Abstraction has 8519 states and 12388 transitions. [2022-10-16 13:30:06,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 13:30:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 8519 states and 12388 transitions. [2022-10-16 13:30:06,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 13:30:06,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:30:06,504 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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] [2022-10-16 13:30:06,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:30:06,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting net_genericErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pktgen_if_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pktgen_if_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pktgen_if_writeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 129 more)] === [2022-10-16 13:30:06,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:30:06,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1609527442, now seen corresponding path program 1 times [2022-10-16 13:30:06,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:30:06,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269266316] [2022-10-16 13:30:06,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:30:06,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:30:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:06,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:30:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:30:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:06,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:30:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:06,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:30:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:30:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:06,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:30:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:30:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:30:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:30:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:30:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:30:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:30:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:30:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:30:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 13:30:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 13:30:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:30:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 13:30:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 13:30:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 13:30:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:30:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-10-16 13:30:07,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:30:07,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269266316] [2022-10-16 13:30:07,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269266316] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:30:07,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:30:07,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:30:07,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55734363] [2022-10-16 13:30:07,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:30:07,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:30:07,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:30:07,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:30:07,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:30:07,134 INFO L87 Difference]: Start difference. First operand 8519 states and 12388 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 13:30:33,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:30:35,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []