/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:22:58,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:22:58,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:22:59,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:22:59,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:22:59,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:22:59,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:22:59,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:22:59,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:22:59,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:22:59,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:22:59,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:22:59,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:22:59,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:22:59,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:22:59,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:22:59,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:22:59,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:22:59,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:22:59,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:22:59,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:22:59,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:22:59,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:22:59,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:22:59,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:22:59,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:22:59,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:22:59,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:22:59,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:22:59,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:22:59,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:22:59,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:22:59,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:22:59,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:22:59,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:22:59,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:22:59,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:22:59,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:22:59,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:22:59,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:22:59,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:22:59,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:22:59,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:22:59,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:22:59,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:22:59,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:22:59,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:22:59,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:22:59,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:22:59,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:22:59,192 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:22:59,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:22:59,194 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:22:59,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:22:59,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:22:59,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:22:59,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:22:59,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:22:59,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:22:59,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:22:59,195 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:22:59,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:22:59,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:22:59,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:22:59,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:22:59,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:22:59,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:22:59,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:22:59,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:22:59,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:22:59,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:22:59,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:22:59,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:22:59,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:22:59,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:22:59,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:22:59,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:22:59,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:22:59,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:22:59,633 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:22:59,634 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:22:59,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i [2022-10-16 13:22:59,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafc6397f/b6a3bc9cb24f47b49c92a1f574cf2f74/FLAGdf905c500 [2022-10-16 13:23:00,699 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:23:00,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i [2022-10-16 13:23:00,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafc6397f/b6a3bc9cb24f47b49c92a1f574cf2f74/FLAGdf905c500 [2022-10-16 13:23:01,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafc6397f/b6a3bc9cb24f47b49c92a1f574cf2f74 [2022-10-16 13:23:01,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:23:01,221 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:23:01,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:23:01,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:23:01,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:23:01,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:23:01" (1/1) ... [2022-10-16 13:23:01,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc6d2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:01, skipping insertion in model container [2022-10-16 13:23:01,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:23:01" (1/1) ... [2022-10-16 13:23:01,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:23:01,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:23:01,890 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2715] [2022-10-16 13:23:01,891 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2716-2717] [2022-10-16 13:23:02,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i[78841,78854] [2022-10-16 13:23:02,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:23:02,540 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:23:02,623 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2715] [2022-10-16 13:23:02,624 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2716-2717] [2022-10-16 13:23:02,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i[78841,78854] [2022-10-16 13:23:02,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:23:02,921 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:23:02,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02 WrapperNode [2022-10-16 13:23:02,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:23:02,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:23:02,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:23:02,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:23:02,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,117 INFO L138 Inliner]: procedures = 143, calls = 649, calls flagged for inlining = 56, calls inlined = 52, statements flattened = 1940 [2022-10-16 13:23:03,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:23:03,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:23:03,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:23:03,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:23:03,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:23:03,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:23:03,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:23:03,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:23:03,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (1/1) ... [2022-10-16 13:23:03,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:23:03,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:23:03,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 13:23:03,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 13:23:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:23:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-16 13:23:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-16 13:23:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2022-10-16 13:23:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2022-10-16 13:23:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 13:23:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-10-16 13:23:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-10-16 13:23:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 13:23:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:23:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:23:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:23:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-10-16 13:23:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-10-16 13:23:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-10-16 13:23:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-10-16 13:23:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-10-16 13:23:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-10-16 13:23:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:23:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:23:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-10-16 13:23:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-10-16 13:23:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 13:23:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 13:23:03,513 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2022-10-16 13:23:03,513 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2022-10-16 13:23:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-10-16 13:23:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-10-16 13:23:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure devm_gpio_request [2022-10-16 13:23:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_gpio_request [2022-10-16 13:23:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:23:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 13:23:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 13:23:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:23:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:23:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-10-16 13:23:03,515 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-10-16 13:23:03,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:23:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:23:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2022-10-16 13:23:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2022-10-16 13:23:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-10-16 13:23:03,516 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-10-16 13:23:03,516 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_irq_thread_fn [2022-10-16 13:23:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_irq_thread_fn [2022-10-16 13:23:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:23:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:23:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_to_desc [2022-10-16 13:23:03,518 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_to_desc [2022-10-16 13:23:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure nfc_hci_recv_frame [2022-10-16 13:23:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure nfc_hci_recv_frame [2022-10-16 13:23:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:23:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:23:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:23:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:23:03,519 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_send [2022-10-16 13:23:03,521 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_send [2022-10-16 13:23:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-16 13:23:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-16 13:23:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-10-16 13:23:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-10-16 13:23:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure crc_ccitt [2022-10-16 13:23:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure crc_ccitt [2022-10-16 13:23:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:23:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:23:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:23:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_disable [2022-10-16 13:23:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_disable [2022-10-16 13:23:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-16 13:23:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-16 13:23:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_recv [2022-10-16 13:23:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_recv [2022-10-16 13:23:03,526 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 13:23:03,526 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 13:23:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:23:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 13:23:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:23:03,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:23:03,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:23:03,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:23:04,103 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:23:04,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:23:04,352 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:23:07,447 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:23:07,462 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:23:07,462 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:23:07,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:23:07 BoogieIcfgContainer [2022-10-16 13:23:07,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:23:07,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:23:07,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:23:07,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:23:07,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:23:01" (1/3) ... [2022-10-16 13:23:07,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785e3321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:23:07, skipping insertion in model container [2022-10-16 13:23:07,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:02" (2/3) ... [2022-10-16 13:23:07,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785e3321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:23:07, skipping insertion in model container [2022-10-16 13:23:07,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:23:07" (3/3) ... [2022-10-16 13:23:07,477 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i [2022-10-16 13:23:07,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:23:07,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-10-16 13:23:07,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:23:07,596 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;@35c996bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:23:07,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-10-16 13:23:07,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 603 states, 430 states have (on average 1.441860465116279) internal successors, (620), 485 states have internal predecessors, (620), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2022-10-16 13:23:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 13:23:07,629 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:07,630 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:07,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:07,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:07,638 INFO L85 PathProgramCache]: Analyzing trace with hash -741304225, now seen corresponding path program 1 times [2022-10-16 13:23:07,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:07,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323208656] [2022-10-16 13:23:07,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:07,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:08,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 13:23:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:08,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 13:23:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:08,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:08,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323208656] [2022-10-16 13:23:08,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323208656] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:08,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:08,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:23:08,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065726596] [2022-10-16 13:23:08,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:08,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:23:08,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:08,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:23:08,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:23:08,570 INFO L87 Difference]: Start difference. First operand has 603 states, 430 states have (on average 1.441860465116279) internal successors, (620), 485 states have internal predecessors, (620), 97 states have call successors, (97), 32 states have call predecessors, (97), 31 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:10,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:10,498 INFO L93 Difference]: Finished difference Result 1675 states and 2319 transitions. [2022-10-16 13:23:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:23:10,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2022-10-16 13:23:10,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:10,532 INFO L225 Difference]: With dead ends: 1675 [2022-10-16 13:23:10,532 INFO L226 Difference]: Without dead ends: 1040 [2022-10-16 13:23:10,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:23:10,551 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 757 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:10,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 1878 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 13:23:10,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-10-16 13:23:10,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 957. [2022-10-16 13:23:10,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 712 states have (on average 1.4213483146067416) internal successors, (1012), 757 states have internal predecessors, (1012), 147 states have call successors, (147), 54 states have call predecessors, (147), 54 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-16 13:23:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1306 transitions. [2022-10-16 13:23:10,760 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1306 transitions. Word has length 60 [2022-10-16 13:23:10,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:10,761 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1306 transitions. [2022-10-16 13:23:10,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:10,762 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1306 transitions. [2022-10-16 13:23:10,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 13:23:10,776 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:10,776 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:10,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:23:10,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:10,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:10,779 INFO L85 PathProgramCache]: Analyzing trace with hash 490667038, now seen corresponding path program 1 times [2022-10-16 13:23:10,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:10,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599807129] [2022-10-16 13:23:10,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:10,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:11,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:11,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:11,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:11,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:11,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 13:23:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:11,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:23:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:11,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:11,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599807129] [2022-10-16 13:23:11,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599807129] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:11,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:11,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:23:11,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730639346] [2022-10-16 13:23:11,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:11,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:23:11,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:11,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:23:11,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:11,400 INFO L87 Difference]: Start difference. First operand 957 states and 1306 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:13,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:13,628 INFO L93 Difference]: Finished difference Result 2944 states and 4062 transitions. [2022-10-16 13:23:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:23:13,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-10-16 13:23:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:13,645 INFO L225 Difference]: With dead ends: 2944 [2022-10-16 13:23:13,646 INFO L226 Difference]: Without dead ends: 2007 [2022-10-16 13:23:13,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:23:13,653 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 950 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:13,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 3144 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 13:23:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2022-10-16 13:23:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1847. [2022-10-16 13:23:13,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1407 states have (on average 1.4228855721393034) internal successors, (2002), 1461 states have internal predecessors, (2002), 288 states have call successors, (288), 109 states have call predecessors, (288), 108 states have return successors, (288), 279 states have call predecessors, (288), 288 states have call successors, (288) [2022-10-16 13:23:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2578 transitions. [2022-10-16 13:23:13,831 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2578 transitions. Word has length 68 [2022-10-16 13:23:13,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:13,832 INFO L495 AbstractCegarLoop]: Abstraction has 1847 states and 2578 transitions. [2022-10-16 13:23:13,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:13,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2578 transitions. [2022-10-16 13:23:13,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 13:23:13,836 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:13,837 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:13,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:23:13,837 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:13,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1043310825, now seen corresponding path program 1 times [2022-10-16 13:23:13,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:13,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184296274] [2022-10-16 13:23:13,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:13,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:14,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:14,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:14,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 13:23:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:23:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:14,168 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:14,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:14,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184296274] [2022-10-16 13:23:14,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184296274] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:14,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:14,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:23:14,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178633611] [2022-10-16 13:23:14,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:14,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:23:14,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:14,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:23:14,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:14,175 INFO L87 Difference]: Start difference. First operand 1847 states and 2578 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:16,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:16,274 INFO L93 Difference]: Finished difference Result 4310 states and 6010 transitions. [2022-10-16 13:23:16,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:23:16,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-10-16 13:23:16,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:16,294 INFO L225 Difference]: With dead ends: 4310 [2022-10-16 13:23:16,295 INFO L226 Difference]: Without dead ends: 2963 [2022-10-16 13:23:16,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:23:16,302 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 948 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:16,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 3156 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 13:23:16,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2022-10-16 13:23:16,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 2746. [2022-10-16 13:23:16,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2746 states, 2112 states have (on average 1.421875) internal successors, (3003), 2166 states have internal predecessors, (3003), 427 states have call successors, (427), 164 states have call predecessors, (427), 163 states have return successors, (428), 420 states have call predecessors, (428), 427 states have call successors, (428) [2022-10-16 13:23:16,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 3858 transitions. [2022-10-16 13:23:16,469 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 3858 transitions. Word has length 69 [2022-10-16 13:23:16,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:16,470 INFO L495 AbstractCegarLoop]: Abstraction has 2746 states and 3858 transitions. [2022-10-16 13:23:16,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:16,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 3858 transitions. [2022-10-16 13:23:16,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 13:23:16,474 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:16,475 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:16,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:23:16,475 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:16,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:16,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1522936319, now seen corresponding path program 1 times [2022-10-16 13:23:16,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:16,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486939779] [2022-10-16 13:23:16,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:16,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:16,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:16,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:16,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:16,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:23:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:16,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 13:23:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:16,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:16,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486939779] [2022-10-16 13:23:16,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486939779] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:16,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:16,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:23:16,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93743791] [2022-10-16 13:23:16,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:16,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:23:16,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:16,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:23:16,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:16,809 INFO L87 Difference]: Start difference. First operand 2746 states and 3858 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:19,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:19,163 INFO L93 Difference]: Finished difference Result 6174 states and 8670 transitions. [2022-10-16 13:23:19,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:23:19,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-10-16 13:23:19,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:19,193 INFO L225 Difference]: With dead ends: 6174 [2022-10-16 13:23:19,193 INFO L226 Difference]: Without dead ends: 3926 [2022-10-16 13:23:19,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:23:19,206 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 951 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:19,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 3138 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 13:23:19,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3926 states. [2022-10-16 13:23:19,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 3656. [2022-10-16 13:23:19,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 2826 states have (on average 1.4203821656050954) internal successors, (4014), 2880 states have internal predecessors, (4014), 566 states have call successors, (566), 221 states have call predecessors, (566), 220 states have return successors, (568), 561 states have call predecessors, (568), 566 states have call successors, (568) [2022-10-16 13:23:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 5148 transitions. [2022-10-16 13:23:19,425 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 5148 transitions. Word has length 70 [2022-10-16 13:23:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:19,426 INFO L495 AbstractCegarLoop]: Abstraction has 3656 states and 5148 transitions. [2022-10-16 13:23:19,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5148 transitions. [2022-10-16 13:23:19,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 13:23:19,429 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:19,430 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:19,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:23:19,430 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:19,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1990554516, now seen corresponding path program 1 times [2022-10-16 13:23:19,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:19,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004334208] [2022-10-16 13:23:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:19,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:19,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:19,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:19,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:19,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:23:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 13:23:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:19,740 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:19,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:19,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004334208] [2022-10-16 13:23:19,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004334208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:19,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:19,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:23:19,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80925146] [2022-10-16 13:23:19,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:19,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:23:19,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:19,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:23:19,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:19,743 INFO L87 Difference]: Start difference. First operand 3656 states and 5148 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:21,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:21,829 INFO L93 Difference]: Finished difference Result 8016 states and 11292 transitions. [2022-10-16 13:23:21,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:23:21,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2022-10-16 13:23:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:21,871 INFO L225 Difference]: With dead ends: 8016 [2022-10-16 13:23:21,871 INFO L226 Difference]: Without dead ends: 4856 [2022-10-16 13:23:21,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:23:21,895 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 954 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 3153 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:21,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 3153 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 13:23:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2022-10-16 13:23:22,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 4543. [2022-10-16 13:23:22,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4543 states, 3519 states have (on average 1.4183006535947713) internal successors, (4991), 3573 states have internal predecessors, (4991), 703 states have call successors, (703), 278 states have call predecessors, (703), 277 states have return successors, (706), 700 states have call predecessors, (706), 703 states have call successors, (706) [2022-10-16 13:23:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4543 states to 4543 states and 6400 transitions. [2022-10-16 13:23:22,240 INFO L78 Accepts]: Start accepts. Automaton has 4543 states and 6400 transitions. Word has length 71 [2022-10-16 13:23:22,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:22,242 INFO L495 AbstractCegarLoop]: Abstraction has 4543 states and 6400 transitions. [2022-10-16 13:23:22,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:22,242 INFO L276 IsEmpty]: Start isEmpty. Operand 4543 states and 6400 transitions. [2022-10-16 13:23:22,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 13:23:22,246 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:22,246 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:22,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:23:22,247 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:22,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:22,248 INFO L85 PathProgramCache]: Analyzing trace with hash -305483953, now seen corresponding path program 1 times [2022-10-16 13:23:22,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:22,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926665763] [2022-10-16 13:23:22,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:22,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:22,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:22,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:22,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:22,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:22,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:23:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:22,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 13:23:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:22,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:22,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926665763] [2022-10-16 13:23:22,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926665763] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:22,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:22,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:23:22,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044154856] [2022-10-16 13:23:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:22,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:23:22,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:22,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:23:22,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:22,563 INFO L87 Difference]: Start difference. First operand 4543 states and 6400 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:24,850 INFO L93 Difference]: Finished difference Result 14163 states and 20090 transitions. [2022-10-16 13:23:24,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:23:24,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2022-10-16 13:23:24,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:24,929 INFO L225 Difference]: With dead ends: 14163 [2022-10-16 13:23:24,929 INFO L226 Difference]: Without dead ends: 9640 [2022-10-16 13:23:24,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:23:24,956 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 965 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:24,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 3141 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 13:23:24,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9640 states. [2022-10-16 13:23:25,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9640 to 9032. [2022-10-16 13:23:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 7025 states have (on average 1.418932384341637) internal successors, (9968), 7130 states have internal predecessors, (9968), 1400 states have call successors, (1400), 565 states have call predecessors, (1400), 563 states have return successors, (1406), 1354 states have call predecessors, (1406), 1400 states have call successors, (1406) [2022-10-16 13:23:25,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 12774 transitions. [2022-10-16 13:23:25,722 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 12774 transitions. Word has length 71 [2022-10-16 13:23:25,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:25,723 INFO L495 AbstractCegarLoop]: Abstraction has 9032 states and 12774 transitions. [2022-10-16 13:23:25,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:25,724 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 12774 transitions. [2022-10-16 13:23:25,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 13:23:25,729 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:25,729 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:25,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:23:25,730 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:25,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1424504868, now seen corresponding path program 1 times [2022-10-16 13:23:25,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:25,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435117704] [2022-10-16 13:23:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:25,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:25,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:23:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:26,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-16 13:23:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:26,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:26,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435117704] [2022-10-16 13:23:26,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435117704] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:26,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:26,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:23:26,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144285337] [2022-10-16 13:23:26,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:26,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:23:26,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:26,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:23:26,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:26,061 INFO L87 Difference]: Start difference. First operand 9032 states and 12774 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:27,976 INFO L93 Difference]: Finished difference Result 16229 states and 22980 transitions. [2022-10-16 13:23:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:23:27,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2022-10-16 13:23:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:28,037 INFO L225 Difference]: With dead ends: 16229 [2022-10-16 13:23:28,037 INFO L226 Difference]: Without dead ends: 9656 [2022-10-16 13:23:28,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:23:28,064 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 834 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:28,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 2401 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 13:23:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9656 states. [2022-10-16 13:23:28,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9656 to 9072. [2022-10-16 13:23:28,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9072 states, 7065 states have (on average 1.41656050955414) internal successors, (10008), 7160 states have internal predecessors, (10008), 1390 states have call successors, (1390), 575 states have call predecessors, (1390), 573 states have return successors, (1396), 1354 states have call predecessors, (1396), 1390 states have call successors, (1396) [2022-10-16 13:23:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 12794 transitions. [2022-10-16 13:23:28,701 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 12794 transitions. Word has length 72 [2022-10-16 13:23:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:28,702 INFO L495 AbstractCegarLoop]: Abstraction has 9072 states and 12794 transitions. [2022-10-16 13:23:28,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:28,702 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 12794 transitions. [2022-10-16 13:23:28,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 13:23:28,712 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:28,713 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:28,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:23:28,713 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:28,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:28,714 INFO L85 PathProgramCache]: Analyzing trace with hash 996215410, now seen corresponding path program 1 times [2022-10-16 13:23:28,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:28,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866173347] [2022-10-16 13:23:28,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:28,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:28,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:28,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:28,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:28,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-16 13:23:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:28,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 13:23:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:28,982 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:28,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:28,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866173347] [2022-10-16 13:23:28,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866173347] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:28,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:28,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:23:28,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615624998] [2022-10-16 13:23:28,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:28,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:23:28,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:28,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:23:28,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:28,985 INFO L87 Difference]: Start difference. First operand 9072 states and 12794 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:31,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:31,030 INFO L93 Difference]: Finished difference Result 16319 states and 23000 transitions. [2022-10-16 13:23:31,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:23:31,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2022-10-16 13:23:31,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:31,079 INFO L225 Difference]: With dead ends: 16319 [2022-10-16 13:23:31,079 INFO L226 Difference]: Without dead ends: 9696 [2022-10-16 13:23:31,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:23:31,104 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 832 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:31,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 2389 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 13:23:31,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9696 states. [2022-10-16 13:23:31,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9696 to 9112. [2022-10-16 13:23:31,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9112 states, 7105 states have (on average 1.4142153413089373) internal successors, (10048), 7190 states have internal predecessors, (10048), 1380 states have call successors, (1380), 585 states have call predecessors, (1380), 583 states have return successors, (1386), 1354 states have call predecessors, (1386), 1380 states have call successors, (1386) [2022-10-16 13:23:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9112 states to 9112 states and 12814 transitions. [2022-10-16 13:23:31,853 INFO L78 Accepts]: Start accepts. Automaton has 9112 states and 12814 transitions. Word has length 73 [2022-10-16 13:23:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:31,854 INFO L495 AbstractCegarLoop]: Abstraction has 9112 states and 12814 transitions. [2022-10-16 13:23:31,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:31,855 INFO L276 IsEmpty]: Start isEmpty. Operand 9112 states and 12814 transitions. [2022-10-16 13:23:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 13:23:31,859 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:31,859 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:31,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 13:23:31,860 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:31,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1914191257, now seen corresponding path program 1 times [2022-10-16 13:23:31,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:31,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102632986] [2022-10-16 13:23:31,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:31,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:32,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:32,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:32,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:32,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 13:23:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:23:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:32,164 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:32,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:32,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102632986] [2022-10-16 13:23:32,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102632986] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:32,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:32,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:23:32,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256299272] [2022-10-16 13:23:32,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:32,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:23:32,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:32,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:23:32,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:32,168 INFO L87 Difference]: Start difference. First operand 9112 states and 12814 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:34,103 INFO L93 Difference]: Finished difference Result 15898 states and 22282 transitions. [2022-10-16 13:23:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:23:34,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2022-10-16 13:23:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:34,144 INFO L225 Difference]: With dead ends: 15898 [2022-10-16 13:23:34,145 INFO L226 Difference]: Without dead ends: 9225 [2022-10-16 13:23:34,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:23:34,172 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 830 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:34,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 2389 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-10-16 13:23:34,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9225 states. [2022-10-16 13:23:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9225 to 8700. [2022-10-16 13:23:34,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8700 states, 6771 states have (on average 1.4061438487667997) internal successors, (9521), 6846 states have internal predecessors, (9521), 1309 states have call successors, (1309), 578 states have call predecessors, (1309), 576 states have return successors, (1315), 1293 states have call predecessors, (1315), 1309 states have call successors, (1315) [2022-10-16 13:23:34,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8700 states to 8700 states and 12145 transitions. [2022-10-16 13:23:34,787 INFO L78 Accepts]: Start accepts. Automaton has 8700 states and 12145 transitions. Word has length 74 [2022-10-16 13:23:34,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:34,787 INFO L495 AbstractCegarLoop]: Abstraction has 8700 states and 12145 transitions. [2022-10-16 13:23:34,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 13:23:34,788 INFO L276 IsEmpty]: Start isEmpty. Operand 8700 states and 12145 transitions. [2022-10-16 13:23:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-16 13:23:34,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:34,793 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:34,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 13:23:34,793 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:34,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1097840051, now seen corresponding path program 1 times [2022-10-16 13:23:34,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:34,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940016423] [2022-10-16 13:23:34,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:34,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:23:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 13:23:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 13:23:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,282 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 13:23:35,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:35,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940016423] [2022-10-16 13:23:35,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940016423] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:23:35,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011435001] [2022-10-16 13:23:35,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:35,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:23:35,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:23:35,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:23:35,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:23:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:35,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:23:35,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:23:35,851 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 13:23:35,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:23:35,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011435001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:35,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:23:35,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 13:23:35,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097157319] [2022-10-16 13:23:35,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:35,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:23:35,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:35,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:23:35,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:35,854 INFO L87 Difference]: Start difference. First operand 8700 states and 12145 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:23:36,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:36,677 INFO L93 Difference]: Finished difference Result 17378 states and 24264 transitions. [2022-10-16 13:23:36,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:23:36,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2022-10-16 13:23:36,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:36,754 INFO L225 Difference]: With dead ends: 17378 [2022-10-16 13:23:36,754 INFO L226 Difference]: Without dead ends: 17376 [2022-10-16 13:23:36,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:36,763 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 725 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:36,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 1595 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:23:36,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17376 states. [2022-10-16 13:23:38,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17376 to 17326. [2022-10-16 13:23:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17326 states, 13519 states have (on average 1.404541756047045) internal successors, (18988), 13626 states have internal predecessors, (18988), 2612 states have call successors, (2612), 1155 states have call predecessors, (2612), 1151 states have return successors, (2624), 2580 states have call predecessors, (2624), 2612 states have call successors, (2624) [2022-10-16 13:23:38,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17326 states to 17326 states and 24224 transitions. [2022-10-16 13:23:38,211 INFO L78 Accepts]: Start accepts. Automaton has 17326 states and 24224 transitions. Word has length 79 [2022-10-16 13:23:38,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:38,211 INFO L495 AbstractCegarLoop]: Abstraction has 17326 states and 24224 transitions. [2022-10-16 13:23:38,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:23:38,212 INFO L276 IsEmpty]: Start isEmpty. Operand 17326 states and 24224 transitions. [2022-10-16 13:23:38,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 13:23:38,217 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:38,217 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:38,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:23:38,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 13:23:38,431 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:38,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:38,432 INFO L85 PathProgramCache]: Analyzing trace with hash -861004128, now seen corresponding path program 1 times [2022-10-16 13:23:38,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:38,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507549941] [2022-10-16 13:23:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:38,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:38,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:38,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:38,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:38,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:23:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:38,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 13:23:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 13:23:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 13:23:38,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:38,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507549941] [2022-10-16 13:23:38,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507549941] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:23:38,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275905178] [2022-10-16 13:23:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:38,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:23:38,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:23:38,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:23:38,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 13:23:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:39,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:23:39,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:23:39,500 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 13:23:39,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:23:39,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275905178] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:39,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:23:39,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-16 13:23:39,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424973540] [2022-10-16 13:23:39,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:39,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:23:39,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:39,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:23:39,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:23:39,503 INFO L87 Difference]: Start difference. First operand 17326 states and 24224 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:23:41,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:41,047 INFO L93 Difference]: Finished difference Result 33609 states and 47244 transitions. [2022-10-16 13:23:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:23:41,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2022-10-16 13:23:41,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:41,131 INFO L225 Difference]: With dead ends: 33609 [2022-10-16 13:23:41,132 INFO L226 Difference]: Without dead ends: 17362 [2022-10-16 13:23:41,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:23:41,187 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 0 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:41,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1540 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:23:41,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17362 states. [2022-10-16 13:23:42,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17362 to 17362. [2022-10-16 13:23:42,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17362 states, 13555 states have (on average 1.4034673552194763) internal successors, (19024), 13662 states have internal predecessors, (19024), 2612 states have call successors, (2612), 1155 states have call predecessors, (2612), 1151 states have return successors, (2624), 2580 states have call predecessors, (2624), 2612 states have call successors, (2624) [2022-10-16 13:23:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17362 states to 17362 states and 24260 transitions. [2022-10-16 13:23:42,719 INFO L78 Accepts]: Start accepts. Automaton has 17362 states and 24260 transitions. Word has length 81 [2022-10-16 13:23:42,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:42,720 INFO L495 AbstractCegarLoop]: Abstraction has 17362 states and 24260 transitions. [2022-10-16 13:23:42,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:23:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 17362 states and 24260 transitions. [2022-10-16 13:23:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 13:23:42,726 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:42,726 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:42,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 13:23:42,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 13:23:42,939 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:42,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:42,940 INFO L85 PathProgramCache]: Analyzing trace with hash -642149410, now seen corresponding path program 1 times [2022-10-16 13:23:42,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:42,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880918990] [2022-10-16 13:23:42,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:42,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:23:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 13:23:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 13:23:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,428 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 13:23:43,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:43,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880918990] [2022-10-16 13:23:43,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880918990] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:23:43,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061129772] [2022-10-16 13:23:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:43,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:23:43,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:23:43,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:23:43,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 13:23:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:43,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 1299 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:23:43,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:23:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 13:23:43,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:23:43,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061129772] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:43,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:23:43,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-16 13:23:43,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342745708] [2022-10-16 13:23:43,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:43,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:23:43,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:43,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:23:43,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:23:43,932 INFO L87 Difference]: Start difference. First operand 17362 states and 24260 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:23:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:45,240 INFO L93 Difference]: Finished difference Result 33681 states and 47316 transitions. [2022-10-16 13:23:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:23:45,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2022-10-16 13:23:45,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:45,319 INFO L225 Difference]: With dead ends: 33681 [2022-10-16 13:23:45,319 INFO L226 Difference]: Without dead ends: 17398 [2022-10-16 13:23:45,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:23:45,369 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 0 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:45,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1540 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:23:45,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17398 states. [2022-10-16 13:23:46,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17398 to 17398. [2022-10-16 13:23:46,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17398 states, 13591 states have (on average 1.4023986461629019) internal successors, (19060), 13698 states have internal predecessors, (19060), 2612 states have call successors, (2612), 1155 states have call predecessors, (2612), 1151 states have return successors, (2624), 2580 states have call predecessors, (2624), 2612 states have call successors, (2624) [2022-10-16 13:23:46,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17398 states to 17398 states and 24296 transitions. [2022-10-16 13:23:46,767 INFO L78 Accepts]: Start accepts. Automaton has 17398 states and 24296 transitions. Word has length 81 [2022-10-16 13:23:46,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:46,767 INFO L495 AbstractCegarLoop]: Abstraction has 17398 states and 24296 transitions. [2022-10-16 13:23:46,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:23:46,768 INFO L276 IsEmpty]: Start isEmpty. Operand 17398 states and 24296 transitions. [2022-10-16 13:23:46,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 13:23:46,773 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:46,774 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:46,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 13:23:46,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:23:46,989 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:46,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:46,989 INFO L85 PathProgramCache]: Analyzing trace with hash 167197216, now seen corresponding path program 1 times [2022-10-16 13:23:46,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:46,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995263702] [2022-10-16 13:23:46,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:46,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:47,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:47,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:47,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:47,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:47,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:23:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 13:23:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:47,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 13:23:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 13:23:47,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:47,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995263702] [2022-10-16 13:23:47,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995263702] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:23:47,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486318499] [2022-10-16 13:23:47,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:47,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:23:47,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:23:47,668 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:23:47,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 13:23:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:48,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:23:48,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:23:48,227 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:23:48,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:23:48,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486318499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:48,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:23:48,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-10-16 13:23:48,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813490661] [2022-10-16 13:23:48,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:48,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:23:48,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:48,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:23:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:23:48,230 INFO L87 Difference]: Start difference. First operand 17398 states and 24296 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:23:50,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:50,060 INFO L93 Difference]: Finished difference Result 46338 states and 64774 transitions. [2022-10-16 13:23:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:23:50,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2022-10-16 13:23:50,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:50,189 INFO L225 Difference]: With dead ends: 46338 [2022-10-16 13:23:50,189 INFO L226 Difference]: Without dead ends: 31786 [2022-10-16 13:23:50,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2022-10-16 13:23:50,235 INFO L413 NwaCegarLoop]: 1102 mSDtfsCounter, 800 mSDsluCounter, 5150 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 6252 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:50,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 6252 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:23:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31786 states. [2022-10-16 13:23:52,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31786 to 31254. [2022-10-16 13:23:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31254 states, 24479 states have (on average 1.403897218023612) internal successors, (34366), 24710 states have internal predecessors, (34366), 4646 states have call successors, (4646), 2061 states have call predecessors, (4646), 2085 states have return successors, (4762), 4546 states have call predecessors, (4762), 4646 states have call successors, (4762) [2022-10-16 13:23:52,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31254 states to 31254 states and 43774 transitions. [2022-10-16 13:23:52,272 INFO L78 Accepts]: Start accepts. Automaton has 31254 states and 43774 transitions. Word has length 81 [2022-10-16 13:23:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:23:52,272 INFO L495 AbstractCegarLoop]: Abstraction has 31254 states and 43774 transitions. [2022-10-16 13:23:52,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:23:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 31254 states and 43774 transitions. [2022-10-16 13:23:52,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 13:23:52,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:52,279 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:23:52,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 13:23:52,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:23:52,493 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:23:52,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:52,494 INFO L85 PathProgramCache]: Analyzing trace with hash 326698011, now seen corresponding path program 1 times [2022-10-16 13:23:52,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:52,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105776968] [2022-10-16 13:23:52,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:52,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:52,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:52,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:52,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:23:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:23:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:52,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:23:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:23:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:52,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 13:23:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:52,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 13:23:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 13:23:52,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:52,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105776968] [2022-10-16 13:23:52,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105776968] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:23:52,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647298390] [2022-10-16 13:23:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:52,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:23:52,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:23:52,888 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:23:52,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 13:23:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:53,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1269 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:23:53,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:23:53,401 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 13:23:53,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:23:53,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647298390] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:53,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:23:53,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 13:23:53,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944221273] [2022-10-16 13:23:53,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:53,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:23:53,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:53,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:23:53,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:53,403 INFO L87 Difference]: Start difference. First operand 31254 states and 43774 transitions. Second operand has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:23:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:23:55,989 INFO L93 Difference]: Finished difference Result 62486 states and 87522 transitions. [2022-10-16 13:23:55,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:23:55,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2022-10-16 13:23:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:23:56,235 INFO L225 Difference]: With dead ends: 62486 [2022-10-16 13:23:56,235 INFO L226 Difference]: Without dead ends: 62484 [2022-10-16 13:23:56,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:23:56,266 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 724 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:23:56,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1595 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:23:56,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62484 states. [2022-10-16 13:24:00,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62484 to 62444. [2022-10-16 13:24:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62444 states, 48945 states have (on average 1.4028807845540914) internal successors, (68664), 49364 states have internal predecessors, (68664), 9286 states have call successors, (9286), 4121 states have call predecessors, (9286), 4169 states have return successors, (9518), 9086 states have call predecessors, (9518), 9286 states have call successors, (9518) [2022-10-16 13:24:00,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62444 states to 62444 states and 87468 transitions. [2022-10-16 13:24:00,633 INFO L78 Accepts]: Start accepts. Automaton has 62444 states and 87468 transitions. Word has length 80 [2022-10-16 13:24:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:24:00,633 INFO L495 AbstractCegarLoop]: Abstraction has 62444 states and 87468 transitions. [2022-10-16 13:24:00,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:24:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 62444 states and 87468 transitions. [2022-10-16 13:24:00,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 13:24:00,649 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:24:00,649 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:24:00,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 13:24:00,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 13:24:00,865 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:24:00,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:24:00,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1503195386, now seen corresponding path program 1 times [2022-10-16 13:24:00,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:24:00,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082088325] [2022-10-16 13:24:00,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:00,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:24:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:01,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:24:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:24:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:01,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:24:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:01,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:24:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:01,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:24:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 13:24:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:01,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:24:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:01,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 13:24:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:24:01,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:24:01,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082088325] [2022-10-16 13:24:01,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082088325] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:24:01,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145248002] [2022-10-16 13:24:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:01,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:24:01,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:24:01,348 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:24:01,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 13:24:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:02,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:24:02,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:24:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:24:02,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:24:02,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145248002] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:24:02,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:24:02,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-10-16 13:24:02,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337967841] [2022-10-16 13:24:02,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:24:02,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:24:02,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:24:02,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:24:02,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:24:02,110 INFO L87 Difference]: Start difference. First operand 62444 states and 87468 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:24:06,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:24:06,349 INFO L93 Difference]: Finished difference Result 148380 states and 207692 transitions. [2022-10-16 13:24:06,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:24:06,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2022-10-16 13:24:06,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:24:06,876 INFO L225 Difference]: With dead ends: 148380 [2022-10-16 13:24:06,876 INFO L226 Difference]: Without dead ends: 91608 [2022-10-16 13:24:07,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:24:07,030 INFO L413 NwaCegarLoop]: 1119 mSDtfsCounter, 800 mSDsluCounter, 5200 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 6319 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:24:07,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 6319 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:24:07,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91608 states. [2022-10-16 13:24:12,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91608 to 90428. [2022-10-16 13:24:12,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90428 states, 70897 states have (on average 1.4024288756929066) internal successors, (99428), 71676 states have internal predecessors, (99428), 13354 states have call successors, (13354), 5933 states have call predecessors, (13354), 6133 states have return successors, (13890), 13002 states have call predecessors, (13890), 13354 states have call successors, (13890) [2022-10-16 13:24:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90428 states to 90428 states and 126672 transitions. [2022-10-16 13:24:12,718 INFO L78 Accepts]: Start accepts. Automaton has 90428 states and 126672 transitions. Word has length 82 [2022-10-16 13:24:12,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:24:12,718 INFO L495 AbstractCegarLoop]: Abstraction has 90428 states and 126672 transitions. [2022-10-16 13:24:12,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:24:12,719 INFO L276 IsEmpty]: Start isEmpty. Operand 90428 states and 126672 transitions. [2022-10-16 13:24:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 13:24:12,725 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:24:12,726 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:24:12,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 13:24:12,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 13:24:12,941 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:24:12,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:24:12,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1471755097, now seen corresponding path program 1 times [2022-10-16 13:24:12,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:24:12,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752520821] [2022-10-16 13:24:12,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:12,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:24:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:24:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:24:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:24:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:24:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:24:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:24:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:24:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 13:24:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:24:13,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:24:13,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752520821] [2022-10-16 13:24:13,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752520821] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:24:13,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943892478] [2022-10-16 13:24:13,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:13,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:24:13,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:24:13,421 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:24:13,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 13:24:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:13,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:24:13,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:24:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:24:14,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:24:14,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943892478] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:24:14,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:24:14,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-10-16 13:24:14,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743276689] [2022-10-16 13:24:14,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:24:14,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:24:14,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:24:14,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:24:14,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:24:14,401 INFO L87 Difference]: Start difference. First operand 90428 states and 126672 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:24:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:24:20,083 INFO L93 Difference]: Finished difference Result 204220 states and 285924 transitions. [2022-10-16 13:24:20,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:24:20,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2022-10-16 13:24:20,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:24:20,761 INFO L225 Difference]: With dead ends: 204220 [2022-10-16 13:24:20,761 INFO L226 Difference]: Without dead ends: 119464 [2022-10-16 13:24:20,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:24:20,920 INFO L413 NwaCegarLoop]: 1119 mSDtfsCounter, 800 mSDsluCounter, 5200 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 6319 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:24:20,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 6319 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:24:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119464 states. [2022-10-16 13:24:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119464 to 90460. [2022-10-16 13:24:25,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90460 states, 70929 states have (on average 1.4022473177402754) internal successors, (99460), 71676 states have internal predecessors, (99460), 13354 states have call successors, (13354), 5933 states have call predecessors, (13354), 6133 states have return successors, (13890), 13034 states have call predecessors, (13890), 13354 states have call successors, (13890) [2022-10-16 13:24:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90460 states to 90460 states and 126704 transitions. [2022-10-16 13:24:26,360 INFO L78 Accepts]: Start accepts. Automaton has 90460 states and 126704 transitions. Word has length 83 [2022-10-16 13:24:26,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:24:26,361 INFO L495 AbstractCegarLoop]: Abstraction has 90460 states and 126704 transitions. [2022-10-16 13:24:26,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:24:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 90460 states and 126704 transitions. [2022-10-16 13:24:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 13:24:26,392 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:24:26,392 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:24:26,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 13:24:26,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:24:26,607 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:24:26,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:24:26,608 INFO L85 PathProgramCache]: Analyzing trace with hash -647160351, now seen corresponding path program 1 times [2022-10-16 13:24:26,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:24:26,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814192268] [2022-10-16 13:24:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:26,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:24:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:26,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:24:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:24:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:24:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:26,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:24:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:27,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:24:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 13:24:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 13:24:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 13:24:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:27,061 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:24:27,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:24:27,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814192268] [2022-10-16 13:24:27,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814192268] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:24:27,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777081899] [2022-10-16 13:24:27,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:27,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:24:27,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:24:27,063 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:24:27,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 13:24:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:27,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:24:27,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:24:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:24:27,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:24:27,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777081899] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:24:27,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:24:27,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-10-16 13:24:27,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849486646] [2022-10-16 13:24:27,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:24:27,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:24:27,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:24:27,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:24:27,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:24:27,663 INFO L87 Difference]: Start difference. First operand 90460 states and 126704 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:24:33,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:24:33,312 INFO L93 Difference]: Finished difference Result 204284 states and 285988 transitions. [2022-10-16 13:24:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:24:33,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-10-16 13:24:33,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:24:33,751 INFO L225 Difference]: With dead ends: 204284 [2022-10-16 13:24:33,751 INFO L226 Difference]: Without dead ends: 119496 [2022-10-16 13:24:33,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:24:33,927 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 800 mSDsluCounter, 4224 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 5099 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:24:33,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 5099 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:24:34,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119496 states. [2022-10-16 13:24:38,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119496 to 90476. [2022-10-16 13:24:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90476 states, 70945 states have (on average 1.4021566001832406) internal successors, (99476), 71676 states have internal predecessors, (99476), 13354 states have call successors, (13354), 5933 states have call predecessors, (13354), 6133 states have return successors, (13890), 13050 states have call predecessors, (13890), 13354 states have call successors, (13890) [2022-10-16 13:24:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90476 states to 90476 states and 126720 transitions. [2022-10-16 13:24:39,218 INFO L78 Accepts]: Start accepts. Automaton has 90476 states and 126720 transitions. Word has length 84 [2022-10-16 13:24:39,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:24:39,219 INFO L495 AbstractCegarLoop]: Abstraction has 90476 states and 126720 transitions. [2022-10-16 13:24:39,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:24:39,219 INFO L276 IsEmpty]: Start isEmpty. Operand 90476 states and 126720 transitions. [2022-10-16 13:24:39,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 13:24:39,226 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:24:39,226 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:24:39,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 13:24:39,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 13:24:39,441 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:24:39,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:24:39,442 INFO L85 PathProgramCache]: Analyzing trace with hash 157651002, now seen corresponding path program 1 times [2022-10-16 13:24:39,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:24:39,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224615776] [2022-10-16 13:24:39,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:39,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:24:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:39,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:24:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:39,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:24:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:24:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:39,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:24:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:39,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:24:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 13:24:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 13:24:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:39,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-16 13:24:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-10-16 13:24:39,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:24:39,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224615776] [2022-10-16 13:24:39,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224615776] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:24:39,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999288520] [2022-10-16 13:24:39,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:39,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:24:39,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:24:39,897 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:24:39,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 13:24:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:40,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:24:40,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:24:40,452 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:24:40,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:24:40,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999288520] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:24:40,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:24:40,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-10-16 13:24:40,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411040079] [2022-10-16 13:24:40,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:24:40,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:24:40,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:24:40,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:24:40,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:24:40,455 INFO L87 Difference]: Start difference. First operand 90476 states and 126720 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:24:46,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:24:46,323 INFO L93 Difference]: Finished difference Result 184304 states and 257366 transitions. [2022-10-16 13:24:46,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:24:46,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-10-16 13:24:46,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:24:46,813 INFO L225 Difference]: With dead ends: 184304 [2022-10-16 13:24:46,813 INFO L226 Difference]: Without dead ends: 135570 [2022-10-16 13:24:47,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2022-10-16 13:24:47,139 INFO L413 NwaCegarLoop]: 1091 mSDtfsCounter, 773 mSDsluCounter, 5098 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 6189 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:24:47,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 6189 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:24:47,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135570 states. [2022-10-16 13:24:53,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135570 to 133238. [2022-10-16 13:24:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133238 states, 104575 states have (on average 1.4016830026296916) internal successors, (146581), 105702 states have internal predecessors, (146581), 19514 states have call successors, (19514), 8701 states have call predecessors, (19514), 9105 states have return successors, (20422), 19110 states have call predecessors, (20422), 19514 states have call successors, (20422) [2022-10-16 13:24:53,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133238 states to 133238 states and 186517 transitions. [2022-10-16 13:24:53,977 INFO L78 Accepts]: Start accepts. Automaton has 133238 states and 186517 transitions. Word has length 87 [2022-10-16 13:24:53,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:24:53,977 INFO L495 AbstractCegarLoop]: Abstraction has 133238 states and 186517 transitions. [2022-10-16 13:24:53,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:24:53,978 INFO L276 IsEmpty]: Start isEmpty. Operand 133238 states and 186517 transitions. [2022-10-16 13:24:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 13:24:53,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:24:53,986 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:24:54,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 13:24:54,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 13:24:54,187 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:24:54,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:24:54,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1826274090, now seen corresponding path program 1 times [2022-10-16 13:24:54,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:24:54,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823326813] [2022-10-16 13:24:54,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:54,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:24:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:54,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:24:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:54,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:24:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:54,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:24:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:54,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:24:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:54,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:24:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 13:24:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:54,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:24:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:54,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 13:24:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:54,626 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:24:54,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:24:54,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823326813] [2022-10-16 13:24:54,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823326813] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:24:54,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106395852] [2022-10-16 13:24:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:54,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:24:54,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:24:54,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:24:54,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 13:24:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:55,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:24:55,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:24:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:24:55,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:24:55,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106395852] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:24:55,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:24:55,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-10-16 13:24:55,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402883041] [2022-10-16 13:24:55,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:24:55,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:24:55,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:24:55,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:24:55,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:24:55,634 INFO L87 Difference]: Start difference. First operand 133238 states and 186517 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:25:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:25:03,826 INFO L93 Difference]: Finished difference Result 270140 states and 377272 transitions. [2022-10-16 13:25:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:25:03,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2022-10-16 13:25:03,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:25:04,646 INFO L225 Difference]: With dead ends: 270140 [2022-10-16 13:25:04,646 INFO L226 Difference]: Without dead ends: 178644 [2022-10-16 13:25:04,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:25:04,825 INFO L413 NwaCegarLoop]: 1100 mSDtfsCounter, 773 mSDsluCounter, 5114 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 6214 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:25:04,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 6214 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:25:05,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178644 states. [2022-10-16 13:25:13,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178644 to 175896. [2022-10-16 13:25:14,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175896 states, 138101 states have (on average 1.4017422031701436) internal successors, (193582), 139728 states have internal predecessors, (193582), 25674 states have call successors, (25674), 11469 states have call predecessors, (25674), 12077 states have return successors, (26954), 25066 states have call predecessors, (26954), 25674 states have call successors, (26954) [2022-10-16 13:25:14,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175896 states to 175896 states and 246210 transitions. [2022-10-16 13:25:14,842 INFO L78 Accepts]: Start accepts. Automaton has 175896 states and 246210 transitions. Word has length 88 [2022-10-16 13:25:14,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:25:14,842 INFO L495 AbstractCegarLoop]: Abstraction has 175896 states and 246210 transitions. [2022-10-16 13:25:14,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:25:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand 175896 states and 246210 transitions. [2022-10-16 13:25:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 13:25:14,853 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:25:14,854 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:25:14,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 13:25:15,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:25:15,072 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:25:15,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:25:15,073 INFO L85 PathProgramCache]: Analyzing trace with hash -901571181, now seen corresponding path program 1 times [2022-10-16 13:25:15,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:25:15,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619866870] [2022-10-16 13:25:15,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:25:15,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:25:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:15,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:25:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:15,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:25:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:15,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:25:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:15,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:25:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:25:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 13:25:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:15,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:25:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:15,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 13:25:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:15,990 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:25:15,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:25:15,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619866870] [2022-10-16 13:25:15,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619866870] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:25:15,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378914225] [2022-10-16 13:25:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:25:15,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:25:15,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:25:15,992 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:25:16,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 13:25:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:16,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:25:16,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:25:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:25:16,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:25:16,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378914225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:25:16,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:25:16,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-10-16 13:25:16,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375952154] [2022-10-16 13:25:16,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:25:16,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:25:16,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:25:16,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:25:16,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:25:16,603 INFO L87 Difference]: Start difference. First operand 175896 states and 246210 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:25:26,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:25:26,877 INFO L93 Difference]: Finished difference Result 355456 states and 496658 transitions. [2022-10-16 13:25:26,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:25:26,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2022-10-16 13:25:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:25:27,781 INFO L225 Difference]: With dead ends: 355456 [2022-10-16 13:25:27,781 INFO L226 Difference]: Without dead ends: 221302 [2022-10-16 13:25:28,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:25:28,030 INFO L413 NwaCegarLoop]: 1100 mSDtfsCounter, 773 mSDsluCounter, 5114 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 6214 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:25:28,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 6214 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:25:28,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221302 states. [2022-10-16 13:25:40,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221302 to 175896. [2022-10-16 13:25:40,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175896 states, 138101 states have (on average 1.4017422031701436) internal successors, (193582), 139728 states have internal predecessors, (193582), 25674 states have call successors, (25674), 11469 states have call predecessors, (25674), 12077 states have return successors, (26954), 25066 states have call predecessors, (26954), 25674 states have call successors, (26954) [2022-10-16 13:25:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175896 states to 175896 states and 246210 transitions. [2022-10-16 13:25:41,310 INFO L78 Accepts]: Start accepts. Automaton has 175896 states and 246210 transitions. Word has length 89 [2022-10-16 13:25:41,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:25:41,310 INFO L495 AbstractCegarLoop]: Abstraction has 175896 states and 246210 transitions. [2022-10-16 13:25:41,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:25:41,311 INFO L276 IsEmpty]: Start isEmpty. Operand 175896 states and 246210 transitions. [2022-10-16 13:25:41,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 13:25:41,329 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:25:41,329 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:25:41,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 13:25:41,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:25:41,544 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting st21nfca_hci_irq_thread_fnErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:25:41,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:25:41,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1813985187, now seen corresponding path program 1 times [2022-10-16 13:25:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:25:41,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156555263] [2022-10-16 13:25:41,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:25:41,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:25:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:42,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:25:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:25:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:25:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:25:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:25:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:42,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:25:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 13:25:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 13:25:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:25:42,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:25:42,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156555263] [2022-10-16 13:25:42,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156555263] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:25:42,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758650411] [2022-10-16 13:25:42,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:25:42,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:25:42,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:25:42,555 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:25:42,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 13:25:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:43,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:25:43,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:25:43,150 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 13:25:43,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:25:43,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758650411] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:25:43,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:25:43,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-10-16 13:25:43,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834648755] [2022-10-16 13:25:43,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:25:43,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:25:43,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:25:43,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:25:43,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:25:43,152 INFO L87 Difference]: Start difference. First operand 175896 states and 246210 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:25:53,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:25:53,427 INFO L93 Difference]: Finished difference Result 355456 states and 496658 transitions. [2022-10-16 13:25:53,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:25:53,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2022-10-16 13:25:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:25:54,355 INFO L225 Difference]: With dead ends: 355456 [2022-10-16 13:25:54,355 INFO L226 Difference]: Without dead ends: 221302 [2022-10-16 13:25:54,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:25:54,618 INFO L413 NwaCegarLoop]: 856 mSDtfsCounter, 773 mSDsluCounter, 4138 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 4994 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:25:54,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 4994 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:25:54,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221302 states. [2022-10-16 13:26:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221302 to 175896. [2022-10-16 13:26:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175896 states, 138101 states have (on average 1.4017422031701436) internal successors, (193582), 139728 states have internal predecessors, (193582), 25674 states have call successors, (25674), 11469 states have call predecessors, (25674), 12077 states have return successors, (26954), 25066 states have call predecessors, (26954), 25674 states have call successors, (26954) [2022-10-16 13:26:05,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175896 states to 175896 states and 246210 transitions. [2022-10-16 13:26:05,473 INFO L78 Accepts]: Start accepts. Automaton has 175896 states and 246210 transitions. Word has length 90 [2022-10-16 13:26:05,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:26:05,473 INFO L495 AbstractCegarLoop]: Abstraction has 175896 states and 246210 transitions. [2022-10-16 13:26:05,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 13:26:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 175896 states and 246210 transitions. [2022-10-16 13:26:05,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-16 13:26:05,480 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:26:05,480 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:26:05,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 13:26:05,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-16 13:26:05,686 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [st21nfca_hci_irq_thread_fnErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, st21nfca_hci_irq_thread_fnErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 13:26:05,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:26:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash -69108046, now seen corresponding path program 1 times [2022-10-16 13:26:05,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:26:05,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424650524] [2022-10-16 13:26:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:26:05,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:26:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:26:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:26:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:26:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:26:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:26:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 13:26:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 13:26:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:26:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:26:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:26:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 13:26:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:05,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 13:26:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-16 13:26:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:26:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:26:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-16 13:26:06,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:26:06,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424650524] [2022-10-16 13:26:06,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424650524] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:26:06,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:26:06,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:26:06,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077017394] [2022-10-16 13:26:06,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:26:06,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:26:06,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:26:06,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:26:06,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:26:06,028 INFO L87 Difference]: Start difference. First operand 175896 states and 246210 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)