/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-3.0/module_get_put-drivers-bluetooth-btmrvl.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:09:33,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:09:34,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:09:34,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:09:34,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:09:34,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:09:34,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:09:34,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:09:34,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:09:34,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:09:34,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:09:34,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:09:34,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:09:34,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:09:34,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:09:34,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:09:34,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:09:34,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:09:34,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:09:34,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:09:34,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:09:34,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:09:34,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:09:34,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:09:34,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:09:34,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:09:34,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:09:34,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:09:34,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:09:34,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:09:34,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:09:34,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:09:34,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:09:34,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:09:34,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:09:34,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:09:34,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:09:34,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:09:34,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:09:34,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:09:34,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:09:34,127 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 [2022-10-15 21:09:34,158 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:09:34,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:09:34,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:09:34,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:09:34,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:09:34,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:09:34,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:09:34,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:09:34,162 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:09:34,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:09:34,163 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:09:34,163 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:09:34,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:09:34,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:09:34,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:09:34,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:09:34,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:09:34,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:09:34,165 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:09:34,165 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:09:34,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:09:34,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:09:34,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:09:34,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:09:34,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:09:34,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:09:34,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:09:34,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:09:34,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:09:34,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:09:34,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:09:34,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:09:34,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:09:34,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:09:34,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:09:34,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:09:34,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:09:34,572 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:09:34,572 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:09:34,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-bluetooth-btmrvl.ko.cil.out.i [2022-10-15 21:09:34,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ecae794/b8820be775284743ad29a1e0adb81b85/FLAG25182f160 [2022-10-15 21:09:35,839 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:09:35,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-bluetooth-btmrvl.ko.cil.out.i [2022-10-15 21:09:35,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ecae794/b8820be775284743ad29a1e0adb81b85/FLAG25182f160 [2022-10-15 21:09:36,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ecae794/b8820be775284743ad29a1e0adb81b85 [2022-10-15 21:09:36,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:09:36,209 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:09:36,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:09:36,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:09:36,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:09:36,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:09:36" (1/1) ... [2022-10-15 21:09:36,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f0e706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:36, skipping insertion in model container [2022-10-15 21:09:36,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:09:36" (1/1) ... [2022-10-15 21:09:36,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:09:36,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:09:37,849 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-3.0/module_get_put-drivers-bluetooth-btmrvl.ko.cil.out.i[187273,187286] [2022-10-15 21:09:38,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:09:38,197 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:09:38,679 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-3.0/module_get_put-drivers-bluetooth-btmrvl.ko.cil.out.i[187273,187286] [2022-10-15 21:09:38,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:09:38,909 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:09:38,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38 WrapperNode [2022-10-15 21:09:38,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:09:38,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:09:38,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:09:38,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:09:38,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,215 INFO L138 Inliner]: procedures = 152, calls = 1731, calls flagged for inlining = 66, calls inlined = 53, statements flattened = 2915 [2022-10-15 21:09:39,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:09:39,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:09:39,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:09:39,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:09:39,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,452 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:09:39,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:09:39,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:09:39,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:09:39,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (1/1) ... [2022-10-15 21:09:39,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:09:39,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:39,557 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) [2022-10-15 21:09:39,581 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 [2022-10-15 21:09:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-15 21:09:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:09:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-15 21:09:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-15 21:09:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:09:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:09:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure btmrvl_service_main_thread [2022-10-15 21:09:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure btmrvl_service_main_thread [2022-10-15 21:09:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure btmrvl_prepare_command [2022-10-15 21:09:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure btmrvl_prepare_command [2022-10-15 21:09:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-10-15 21:09:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-10-15 21:09:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:09:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure btmrvl_open_generic [2022-10-15 21:09:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure btmrvl_open_generic [2022-10-15 21:09:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-15 21:09:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-15 21:09:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:09:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:09:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-10-15 21:09:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-10-15 21:09:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:09:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:09:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:09:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-15 21:09:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-15 21:09:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:09:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:09:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:09:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:09:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-10-15 21:09:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-10-15 21:09:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc [2022-10-15 21:09:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc [2022-10-15 21:09:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-15 21:09:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-15 21:09:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:09:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-15 21:09:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-15 21:09:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-15 21:09:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-15 21:09:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:09:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:09:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-10-15 21:09:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-10-15 21:09:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-10-15 21:09:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-10-15 21:09:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:09:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:09:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-10-15 21:09:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-10-15 21:09:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-10-15 21:09:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-10-15 21:09:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-15 21:09:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-15 21:09:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-10-15 21:09:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-10-15 21:09:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2022-10-15 21:09:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2022-10-15 21:09:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-10-15 21:09:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-10-15 21:09:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:09:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:09:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:09:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-15 21:09:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-15 21:09:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:09:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:09:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:09:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:09:40,236 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:09:40,239 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:09:41,233 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-10-15 21:09:41,233 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-10-15 21:09:41,756 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6055: SUMMARY for call #t~ret304#1.base, #t~ret304#1.offset := get_current(); srcloc: null [2022-10-15 21:09:41,757 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6055-1: ~tmp___7~1#1.base, ~tmp___7~1#1.offset := #t~ret304#1.base, #t~ret304#1.offset;havoc #t~ret304#1.base, #t~ret304#1.offset;~__ptr___3~0#1.base, ~__ptr___3~0#1.offset := ~tmp___7~1#1.base, ~tmp___7~1#1.offset; [2022-10-15 21:09:41,757 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2022-10-15 21:09:41,757 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2022-10-15 21:09:41,757 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-10-15 21:09:41,758 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-10-15 21:09:41,758 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5979: SUMMARY for call #t~ret294#1.base, #t~ret294#1.offset := get_current(); srcloc: null [2022-10-15 21:09:41,758 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5979-1: ~tmp___1~3#1.base, ~tmp___1~3#1.offset := #t~ret294#1.base, #t~ret294#1.offset;havoc #t~ret294#1.base, #t~ret294#1.offset;~__ptr~0#1.base, ~__ptr~0#1.offset := ~tmp___1~3#1.base, ~tmp___1~3#1.offset; [2022-10-15 21:09:41,770 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 21:09:43,586 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !false; [2022-10-15 21:09:43,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume false; [2022-10-15 21:09:43,632 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:09:43,648 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:09:43,648 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 21:09:43,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:09:43 BoogieIcfgContainer [2022-10-15 21:09:43,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:09:43,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:09:43,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:09:43,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:09:43,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:09:36" (1/3) ... [2022-10-15 21:09:43,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:09:43, skipping insertion in model container [2022-10-15 21:09:43,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:38" (2/3) ... [2022-10-15 21:09:43,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:09:43, skipping insertion in model container [2022-10-15 21:09:43,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:09:43" (3/3) ... [2022-10-15 21:09:43,663 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-bluetooth-btmrvl.ko.cil.out.i [2022-10-15 21:09:43,686 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:09:43,687 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-10-15 21:09:43,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:09:43,784 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;@5a92bb51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:09:43,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-10-15 21:09:43,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 613 states, 436 states have (on average 1.4701834862385321) internal successors, (641), 476 states have internal predecessors, (641), 116 states have call successors, (116), 28 states have call predecessors, (116), 28 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2022-10-15 21:09:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 21:09:43,812 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:43,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:43,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:09:43,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:43,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1449942720, now seen corresponding path program 1 times [2022-10-15 21:09:43,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:43,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021414045] [2022-10-15 21:09:43,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:43,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:09:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:09:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:44,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:44,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021414045] [2022-10-15 21:09:44,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021414045] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:44,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:44,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:44,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406903824] [2022-10-15 21:09:44,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:44,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:44,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:44,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:44,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:44,784 INFO L87 Difference]: Start difference. First operand has 613 states, 436 states have (on average 1.4701834862385321) internal successors, (641), 476 states have internal predecessors, (641), 116 states have call successors, (116), 28 states have call predecessors, (116), 28 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:46,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:46,656 INFO L93 Difference]: Finished difference Result 1504 states and 2229 transitions. [2022-10-15 21:09:46,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:46,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-10-15 21:09:46,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:46,684 INFO L225 Difference]: With dead ends: 1504 [2022-10-15 21:09:46,684 INFO L226 Difference]: Without dead ends: 879 [2022-10-15 21:09:46,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:46,701 INFO L413 NwaCegarLoop]: 987 mSDtfsCounter, 417 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:46,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 2215 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 21:09:46,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2022-10-15 21:09:46,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 831. [2022-10-15 21:09:46,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 599 states have (on average 1.4424040066777963) internal successors, (864), 637 states have internal predecessors, (864), 175 states have call successors, (175), 27 states have call predecessors, (175), 27 states have return successors, (175), 174 states have call predecessors, (175), 175 states have call successors, (175) [2022-10-15 21:09:46,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1214 transitions. [2022-10-15 21:09:46,855 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1214 transitions. Word has length 19 [2022-10-15 21:09:46,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:46,856 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1214 transitions. [2022-10-15 21:09:46,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:46,856 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1214 transitions. [2022-10-15 21:09:46,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-15 21:09:46,859 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:46,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:46,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:09:46,860 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:09:46,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:46,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1462846995, now seen corresponding path program 1 times [2022-10-15 21:09:46,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:46,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178323074] [2022-10-15 21:09:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:46,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:47,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-15 21:09:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:09:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:47,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:47,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:47,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178323074] [2022-10-15 21:09:47,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178323074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:47,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:47,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:47,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615966872] [2022-10-15 21:09:47,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:47,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:47,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:47,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:47,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:47,261 INFO L87 Difference]: Start difference. First operand 831 states and 1214 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:48,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:48,964 INFO L93 Difference]: Finished difference Result 2154 states and 3233 transitions. [2022-10-15 21:09:48,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:48,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-10-15 21:09:48,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:48,978 INFO L225 Difference]: With dead ends: 2154 [2022-10-15 21:09:48,978 INFO L226 Difference]: Without dead ends: 1326 [2022-10-15 21:09:48,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:48,984 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 385 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:48,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1938 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 21:09:48,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-10-15 21:09:49,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1280. [2022-10-15 21:09:49,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 936 states have (on average 1.4711538461538463) internal successors, (1377), 977 states have internal predecessors, (1377), 289 states have call successors, (289), 27 states have call predecessors, (289), 27 states have return successors, (289), 288 states have call predecessors, (289), 289 states have call successors, (289) [2022-10-15 21:09:49,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1955 transitions. [2022-10-15 21:09:49,077 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1955 transitions. Word has length 22 [2022-10-15 21:09:49,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:49,078 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 1955 transitions. [2022-10-15 21:09:49,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:49,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1955 transitions. [2022-10-15 21:09:49,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 21:09:49,081 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:49,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:49,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:09:49,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:09:49,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash 799646927, now seen corresponding path program 1 times [2022-10-15 21:09:49,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:49,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966578604] [2022-10-15 21:09:49,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:49,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:09:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:09:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:49,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:49,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:49,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966578604] [2022-10-15 21:09:49,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966578604] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:49,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:49,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:49,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694537484] [2022-10-15 21:09:49,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:49,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:49,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:49,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:49,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:49,471 INFO L87 Difference]: Start difference. First operand 1280 states and 1955 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:50,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:50,984 INFO L93 Difference]: Finished difference Result 3432 states and 5368 transitions. [2022-10-15 21:09:50,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:50,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-10-15 21:09:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:51,007 INFO L225 Difference]: With dead ends: 3432 [2022-10-15 21:09:51,007 INFO L226 Difference]: Without dead ends: 2155 [2022-10-15 21:09:51,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:51,016 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 376 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:51,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1928 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 21:09:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2022-10-15 21:09:51,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2111. [2022-10-15 21:09:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 1565 states have (on average 1.4894568690095846) internal successors, (2331), 1610 states have internal predecessors, (2331), 493 states have call successors, (493), 27 states have call predecessors, (493), 27 states have return successors, (493), 492 states have call predecessors, (493), 493 states have call successors, (493) [2022-10-15 21:09:51,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 3317 transitions. [2022-10-15 21:09:51,154 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 3317 transitions. Word has length 25 [2022-10-15 21:09:51,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:51,154 INFO L495 AbstractCegarLoop]: Abstraction has 2111 states and 3317 transitions. [2022-10-15 21:09:51,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:51,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 3317 transitions. [2022-10-15 21:09:51,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 21:09:51,157 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:51,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:51,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:09:51,157 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:09:51,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:51,158 INFO L85 PathProgramCache]: Analyzing trace with hash 249455964, now seen corresponding path program 1 times [2022-10-15 21:09:51,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:51,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67263850] [2022-10-15 21:09:51,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:51,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:51,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-15 21:09:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:51,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:09:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:51,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:51,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:51,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67263850] [2022-10-15 21:09:51,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67263850] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:51,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:51,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:51,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283226506] [2022-10-15 21:09:51,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:51,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:51,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:51,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:51,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:51,513 INFO L87 Difference]: Start difference. First operand 2111 states and 3317 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:53,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:53,154 INFO L93 Difference]: Finished difference Result 5846 states and 9372 transitions. [2022-10-15 21:09:53,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:53,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-10-15 21:09:53,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:53,189 INFO L225 Difference]: With dead ends: 5846 [2022-10-15 21:09:53,190 INFO L226 Difference]: Without dead ends: 3738 [2022-10-15 21:09:53,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:53,204 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 375 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:53,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1930 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-15 21:09:53,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2022-10-15 21:09:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3696. [2022-10-15 21:09:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3696 states, 2768 states have (on average 1.4960260115606936) internal successors, (4141), 2827 states have internal predecessors, (4141), 877 states have call successors, (877), 27 states have call predecessors, (877), 27 states have return successors, (877), 876 states have call predecessors, (877), 877 states have call successors, (877) [2022-10-15 21:09:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3696 states to 3696 states and 5895 transitions. [2022-10-15 21:09:53,509 INFO L78 Accepts]: Start accepts. Automaton has 3696 states and 5895 transitions. Word has length 28 [2022-10-15 21:09:53,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:53,510 INFO L495 AbstractCegarLoop]: Abstraction has 3696 states and 5895 transitions. [2022-10-15 21:09:53,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:53,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3696 states and 5895 transitions. [2022-10-15 21:09:53,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-15 21:09:53,512 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:53,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:53,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:09:53,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:09:53,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash -747627426, now seen corresponding path program 1 times [2022-10-15 21:09:53,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:53,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60192817] [2022-10-15 21:09:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:53,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:09:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 21:09:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:53,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:53,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60192817] [2022-10-15 21:09:53,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60192817] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:53,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:53,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:53,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973689315] [2022-10-15 21:09:53,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:53,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:53,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:53,815 INFO L87 Difference]: Start difference. First operand 3696 states and 5895 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:55,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:55,626 INFO L93 Difference]: Finished difference Result 10322 states and 16724 transitions. [2022-10-15 21:09:55,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:55,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2022-10-15 21:09:55,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:55,707 INFO L225 Difference]: With dead ends: 10322 [2022-10-15 21:09:55,707 INFO L226 Difference]: Without dead ends: 6629 [2022-10-15 21:09:55,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:55,737 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 366 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:55,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 1922 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-15 21:09:55,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6629 states. [2022-10-15 21:09:56,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6629 to 6589. [2022-10-15 21:09:56,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6589 states, 4991 states have (on average 1.4960929673412142) internal successors, (7467), 5064 states have internal predecessors, (7467), 1549 states have call successors, (1549), 27 states have call predecessors, (1549), 27 states have return successors, (1549), 1548 states have call predecessors, (1549), 1549 states have call successors, (1549) [2022-10-15 21:09:56,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6589 states to 6589 states and 10565 transitions. [2022-10-15 21:09:56,282 INFO L78 Accepts]: Start accepts. Automaton has 6589 states and 10565 transitions. Word has length 31 [2022-10-15 21:09:56,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:56,282 INFO L495 AbstractCegarLoop]: Abstraction has 6589 states and 10565 transitions. [2022-10-15 21:09:56,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:56,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6589 states and 10565 transitions. [2022-10-15 21:09:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-15 21:09:56,291 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:56,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:56,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:09:56,292 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:09:56,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:56,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1845042379, now seen corresponding path program 1 times [2022-10-15 21:09:56,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:56,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242555] [2022-10-15 21:09:56,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:56,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:56,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:09:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 21:09:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:56,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:56,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242555] [2022-10-15 21:09:56,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242555] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:56,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:56,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:56,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403976602] [2022-10-15 21:09:56,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:56,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:56,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:56,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:56,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:56,642 INFO L87 Difference]: Start difference. First operand 6589 states and 10565 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:58,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:58,578 INFO L93 Difference]: Finished difference Result 18682 states and 30352 transitions. [2022-10-15 21:09:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:58,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-10-15 21:09:58,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:58,677 INFO L225 Difference]: With dead ends: 18682 [2022-10-15 21:09:58,677 INFO L226 Difference]: Without dead ends: 12096 [2022-10-15 21:09:58,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:58,723 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 365 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:58,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 1922 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-15 21:09:58,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12096 states. [2022-10-15 21:09:59,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12096 to 12058. [2022-10-15 21:09:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12058 states, 9214 states have (on average 1.4891469502930323) internal successors, (13721), 9333 states have internal predecessors, (13721), 2797 states have call successors, (2797), 27 states have call predecessors, (2797), 27 states have return successors, (2797), 2796 states have call predecessors, (2797), 2797 states have call successors, (2797) [2022-10-15 21:09:59,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12058 states to 12058 states and 19315 transitions. [2022-10-15 21:09:59,726 INFO L78 Accepts]: Start accepts. Automaton has 12058 states and 19315 transitions. Word has length 34 [2022-10-15 21:09:59,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:59,728 INFO L495 AbstractCegarLoop]: Abstraction has 12058 states and 19315 transitions. [2022-10-15 21:09:59,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:59,729 INFO L276 IsEmpty]: Start isEmpty. Operand 12058 states and 19315 transitions. [2022-10-15 21:09:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-15 21:09:59,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:59,731 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] [2022-10-15 21:09:59,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:09:59,732 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:09:59,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:59,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2000313493, now seen corresponding path program 1 times [2022-10-15 21:09:59,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:59,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240459458] [2022-10-15 21:09:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:59,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:00,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:10:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:10:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:00,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:10:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:00,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:10:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:10:00,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:10:00,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240459458] [2022-10-15 21:10:00,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240459458] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:10:00,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:10:00,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:10:00,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491865808] [2022-10-15 21:10:00,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:10:00,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:10:00,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:10:00,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:10:00,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:10:00,122 INFO L87 Difference]: Start difference. First operand 12058 states and 19315 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:10:01,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:10:01,969 INFO L93 Difference]: Finished difference Result 12096 states and 19629 transitions. [2022-10-15 21:10:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:10:01,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2022-10-15 21:10:01,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:10:02,025 INFO L225 Difference]: With dead ends: 12096 [2022-10-15 21:10:02,026 INFO L226 Difference]: Without dead ends: 12095 [2022-10-15 21:10:02,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:10:02,034 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 386 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:10:02,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 2031 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-15 21:10:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12095 states. [2022-10-15 21:10:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12095 to 12057. [2022-10-15 21:10:02,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12057 states, 9214 states have (on average 1.4856739743868026) internal successors, (13689), 9332 states have internal predecessors, (13689), 2797 states have call successors, (2797), 27 states have call predecessors, (2797), 27 states have return successors, (2797), 2796 states have call predecessors, (2797), 2797 states have call successors, (2797) [2022-10-15 21:10:02,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12057 states to 12057 states and 19283 transitions. [2022-10-15 21:10:02,878 INFO L78 Accepts]: Start accepts. Automaton has 12057 states and 19283 transitions. Word has length 38 [2022-10-15 21:10:02,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:10:02,879 INFO L495 AbstractCegarLoop]: Abstraction has 12057 states and 19283 transitions. [2022-10-15 21:10:02,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:10:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 12057 states and 19283 transitions. [2022-10-15 21:10:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:10:02,883 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:10:02,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:10:02,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:10:02,885 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:10:02,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:10:02,885 INFO L85 PathProgramCache]: Analyzing trace with hash -473954323, now seen corresponding path program 1 times [2022-10-15 21:10:02,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:10:02,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354450267] [2022-10-15 21:10:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:10:02,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:10:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:03,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:10:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:03,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 21:10:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:10:03,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:10:03,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354450267] [2022-10-15 21:10:03,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354450267] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:10:03,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:10:03,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:10:03,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316103366] [2022-10-15 21:10:03,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:10:03,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:10:03,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:10:03,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:10:03,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:10:03,293 INFO L87 Difference]: Start difference. First operand 12057 states and 19283 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:10:05,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:10:05,846 INFO L93 Difference]: Finished difference Result 35185 states and 56988 transitions. [2022-10-15 21:10:05,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:10:05,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-10-15 21:10:05,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:10:05,983 INFO L225 Difference]: With dead ends: 35185 [2022-10-15 21:10:05,983 INFO L226 Difference]: Without dead ends: 23131 [2022-10-15 21:10:06,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:10:06,164 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 375 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:10:06,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1927 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-15 21:10:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23131 states. [2022-10-15 21:10:07,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23131 to 23094. [2022-10-15 21:10:07,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23094 states, 17757 states have (on average 1.4790223573801882) internal successors, (26263), 17969 states have internal predecessors, (26263), 5293 states have call successors, (5293), 27 states have call predecessors, (5293), 27 states have return successors, (5293), 5292 states have call predecessors, (5293), 5293 states have call successors, (5293) [2022-10-15 21:10:07,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23094 states to 23094 states and 36849 transitions. [2022-10-15 21:10:07,640 INFO L78 Accepts]: Start accepts. Automaton has 23094 states and 36849 transitions. Word has length 37 [2022-10-15 21:10:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:10:07,642 INFO L495 AbstractCegarLoop]: Abstraction has 23094 states and 36849 transitions. [2022-10-15 21:10:07,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:10:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 23094 states and 36849 transitions. [2022-10-15 21:10:07,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-15 21:10:07,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:10:07,646 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] [2022-10-15 21:10:07,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 21:10:07,647 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:10:07,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:10:07,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1880175337, now seen corresponding path program 1 times [2022-10-15 21:10:07,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:10:07,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600589655] [2022-10-15 21:10:07,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:10:07,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:10:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:07,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:10:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:07,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:10:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:07,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:10:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:07,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:10:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:10:07,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:10:07,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600589655] [2022-10-15 21:10:07,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600589655] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:10:07,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:10:07,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:10:07,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361202504] [2022-10-15 21:10:07,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:10:07,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:10:07,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:10:07,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:10:07,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:10:07,937 INFO L87 Difference]: Start difference. First operand 23094 states and 36849 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:10:10,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:10:10,603 INFO L93 Difference]: Finished difference Result 56588 states and 91353 transitions. [2022-10-15 21:10:10,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:10:10,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2022-10-15 21:10:10,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:10:10,806 INFO L225 Difference]: With dead ends: 56588 [2022-10-15 21:10:10,806 INFO L226 Difference]: Without dead ends: 33497 [2022-10-15 21:10:10,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:10:10,918 INFO L413 NwaCegarLoop]: 1166 mSDtfsCounter, 375 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:10:10,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 2516 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 21:10:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33497 states. [2022-10-15 21:10:13,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33497 to 33461. [2022-10-15 21:10:13,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33461 states, 25821 states have (on average 1.4830951551063087) internal successors, (38295), 26096 states have internal predecessors, (38295), 7597 states have call successors, (7597), 27 states have call predecessors, (7597), 27 states have return successors, (7597), 7596 states have call predecessors, (7597), 7597 states have call successors, (7597) [2022-10-15 21:10:13,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33461 states to 33461 states and 53489 transitions. [2022-10-15 21:10:13,353 INFO L78 Accepts]: Start accepts. Automaton has 33461 states and 53489 transitions. Word has length 39 [2022-10-15 21:10:13,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:10:13,354 INFO L495 AbstractCegarLoop]: Abstraction has 33461 states and 53489 transitions. [2022-10-15 21:10:13,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:10:13,355 INFO L276 IsEmpty]: Start isEmpty. Operand 33461 states and 53489 transitions. [2022-10-15 21:10:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-15 21:10:13,357 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:10:13,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:10:13,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 21:10:13,357 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [btmrvl_service_main_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, btmrvl_service_main_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2022-10-15 21:10:13,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:10:13,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2032861298, now seen corresponding path program 1 times [2022-10-15 21:10:13,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:10:13,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469230671] [2022-10-15 21:10:13,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:10:13,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:10:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:13,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 21:10:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:13,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:10:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:10:13,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:10:13,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469230671] [2022-10-15 21:10:13,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469230671] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:10:13,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:10:13,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:10:13,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399092933] [2022-10-15 21:10:13,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:10:13,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:10:13,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:10:13,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:10:13,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:10:13,639 INFO L87 Difference]: Start difference. First operand 33461 states and 53489 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:10:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:10:18,139 INFO L93 Difference]: Finished difference Result 97990 states and 158456 transitions. [2022-10-15 21:10:18,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:10:18,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2022-10-15 21:10:18,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:10:18,733 INFO L225 Difference]: With dead ends: 97990 [2022-10-15 21:10:18,733 INFO L226 Difference]: Without dead ends: 64532 [2022-10-15 21:10:18,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:10:18,868 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 370 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:10:18,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1920 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-10-15 21:10:18,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64532 states.