/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-kernel--rcu--rcutorture.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:20:06,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:20:06,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:20:06,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:20:06,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:20:06,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:20:06,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:20:06,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:20:06,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:20:06,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:20:06,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:20:06,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:20:06,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:20:06,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:20:06,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:20:06,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:20:06,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:20:06,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:20:06,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:20:06,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:20:06,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:20:06,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:20:06,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:20:06,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:20:06,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:20:06,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:20:06,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:20:06,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:20:06,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:20:06,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:20:06,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:20:06,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:20:06,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:20:06,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:20:06,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:20:06,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:20:06,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:20:06,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:20:06,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:20:06,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:20:06,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:20:06,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:20:06,606 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:20:06,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:20:06,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:20:06,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:20:06,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:20:06,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:20:06,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:20:06,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:20:06,614 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:20:06,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:20:06,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:20:06,616 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:20:06,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:20:06,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:20:06,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:20:06,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:20:06,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:20:06,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:20:06,618 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:20:06,618 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:20:06,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:20:06,618 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:20:06,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:20:06,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:20:06,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:20:06,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:20:06,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:20:06,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:20:06,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:20:06,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:20:06,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:20:06,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:20:06,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:20:06,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:20:07,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:20:07,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:20:07,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:20:07,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:20:07,182 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:20:07,183 INFO L432 ainManager$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-kernel--rcu--rcutorture.ko-entry_point.cil.out.i [2022-10-15 21:20:07,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa93388d2/d968df4f548244bbb193dfa0fd77cbbe/FLAG60e25c778 [2022-10-15 21:20:08,436 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:20:08,436 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-kernel--rcu--rcutorture.ko-entry_point.cil.out.i [2022-10-15 21:20:08,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa93388d2/d968df4f548244bbb193dfa0fd77cbbe/FLAG60e25c778 [2022-10-15 21:20:08,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa93388d2/d968df4f548244bbb193dfa0fd77cbbe [2022-10-15 21:20:08,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:20:08,844 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:20:08,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:20:08,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:20:08,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:20:08,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:20:08" (1/1) ... [2022-10-15 21:20:08,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bb5252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:08, skipping insertion in model container [2022-10-15 21:20:08,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:20:08" (1/1) ... [2022-10-15 21:20:08,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:20:08,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:20:09,443 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1863] [2022-10-15 21:20:09,444 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1864-1865] [2022-10-15 21:20:10,102 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-kernel--rcu--rcutorture.ko-entry_point.cil.out.i[75539,75552] [2022-10-15 21:20:10,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:20:10,951 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:20:11,024 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1863] [2022-10-15 21:20:11,024 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1864-1865] [2022-10-15 21:20:11,058 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-kernel--rcu--rcutorture.ko-entry_point.cil.out.i[75539,75552] [2022-10-15 21:20:11,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:20:11,547 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:20:11,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11 WrapperNode [2022-10-15 21:20:11,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:20:11,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:20:11,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:20:11,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:20:11,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:11,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:11,845 INFO L138 Inliner]: procedures = 294, calls = 1582, calls flagged for inlining = 112, calls inlined = 90, statements flattened = 3994 [2022-10-15 21:20:11,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:20:11,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:20:11,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:20:11,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:20:11,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:11,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:11,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:11,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:12,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:12,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:12,136 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:12,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:12,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:20:12,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:20:12,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:20:12,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:20:12,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (1/1) ... [2022-10-15 21:20:12,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:20:12,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:20:12,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:20:12,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:20:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-15 21:20:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-15 21:20:12,327 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_read_unlock [2022-10-15 21:20:12,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_read_unlock [2022-10-15 21:20:12,327 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-15 21:20:12,327 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_delay [2022-10-15 21:20:12,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_delay [2022-10-15 21:20:12,328 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_torture_read_lock [2022-10-15 21:20:12,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_torture_read_lock [2022-10-15 21:20:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:20:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:20:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_read_lock [2022-10-15 21:20:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_read_lock [2022-10-15 21:20:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lockdep_current_cpu_online [2022-10-15 21:20:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lockdep_current_cpu_online [2022-10-15 21:20:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_barrier_sched [2022-10-15 21:20:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_barrier_sched [2022-10-15 21:20:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-15 21:20:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-15 21:20:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-15 21:20:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-15 21:20:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure call_rcu_busted [2022-10-15 21:20:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure call_rcu_busted [2022-10-15 21:20:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure process_srcu [2022-10-15 21:20:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure process_srcu [2022-10-15 21:20:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:20:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:20:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2022-10-15 21:20:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2022-10-15 21:20:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-15 21:20:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_sched [2022-10-15 21:20:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_sched [2022-10-15 21:20:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_rcu_head_on_stack [2022-10-15 21:20:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_rcu_head_on_stack [2022-10-15 21:20:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_stats [2022-10-15 21:20:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_stats [2022-10-15 21:20:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2022-10-15 21:20:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2022-10-15 21:20:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2022-10-15 21:20:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2022-10-15 21:20:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:20:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:20:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2022-10-15 21:20:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2022-10-15 21:20:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:20:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:20:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2022-10-15 21:20:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2022-10-15 21:20:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-10-15 21:20:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-10-15 21:20:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2022-10-15 21:20:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2022-10-15 21:20:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_read_delay [2022-10-15 21:20:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_read_delay [2022-10-15 21:20:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-15 21:20:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-15 21:20:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_deferred_free [2022-10-15 21:20:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_deferred_free [2022-10-15 21:20:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2022-10-15 21:20:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2022-10-15 21:20:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:20:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:20:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2022-10-15 21:20:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2022-10-15 21:20:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure sched_torture_read_unlock [2022-10-15 21:20:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure sched_torture_read_unlock [2022-10-15 21:20:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_cleanup [2022-10-15 21:20:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_cleanup [2022-10-15 21:20:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-10-15 21:20:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-10-15 21:20:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-10-15 21:20:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-10-15 21:20:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_free [2022-10-15 21:20:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_free [2022-10-15 21:20:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure sched_torture_read_lock [2022-10-15 21:20:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure sched_torture_read_lock [2022-10-15 21:20:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_timer [2022-10-15 21:20:12,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_timer [2022-10-15 21:20:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_synchronize [2022-10-15 21:20:12,383 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_synchronize [2022-10-15 21:20:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:20:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:20:12,383 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:20:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-10-15 21:20:12,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-10-15 21:20:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu_bh [2022-10-15 21:20:12,385 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu_bh [2022-10-15 21:20:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:20:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_completed [2022-10-15 21:20:12,386 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_completed [2022-10-15 21:20:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-15 21:20:12,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-15 21:20:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure rcutorture_trace_dump [2022-10-15 21:20:12,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rcutorture_trace_dump [2022-10-15 21:20:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_sync_torture_init [2022-10-15 21:20:12,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_sync_torture_init [2022-10-15 21:20:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:20:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:20:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure call_rcu_bh [2022-10-15 21:20:12,388 INFO L138 BoogieDeclarations]: Found implementation of procedure call_rcu_bh [2022-10-15 21:20:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_completed [2022-10-15 21:20:12,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_completed [2022-10-15 21:20:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_barrier_bh [2022-10-15 21:20:12,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_barrier_bh [2022-10-15 21:20:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2022-10-15 21:20:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2022-10-15 21:20:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:20:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:20:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure rcutorture_record_test_transition [2022-10-15 21:20:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure rcutorture_record_test_transition [2022-10-15 21:20:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure get_state_synchronize_rcu [2022-10-15 21:20:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure get_state_synchronize_rcu [2022-10-15 21:20:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure rcutorture_booster_init [2022-10-15 21:20:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rcutorture_booster_init [2022-10-15 21:20:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:20:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:20:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_barrier [2022-10-15 21:20:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_barrier [2022-10-15 21:20:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-15 21:20:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-15 21:20:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_synchronize_expedited [2022-10-15 21:20:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_synchronize_expedited [2022-10-15 21:20:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:20:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:20:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure __this_cpu_preempt_check [2022-10-15 21:20:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __this_cpu_preempt_check [2022-10-15 21:20:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu_bh_expedited [2022-10-15 21:20:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu_bh_expedited [2022-10-15 21:20:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2022-10-15 21:20:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2022-10-15 21:20:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_torture_read_unlock [2022-10-15 21:20:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_torture_read_unlock [2022-10-15 21:20:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure call_rcu_sched [2022-10-15 21:20:12,405 INFO L138 BoogieDeclarations]: Found implementation of procedure call_rcu_sched [2022-10-15 21:20:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-15 21:20:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-15 21:20:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_busted_torture_deferred_free [2022-10-15 21:20:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_busted_torture_deferred_free [2022-10-15 21:20:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:20:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_pipe_update_one [2022-10-15 21:20:12,406 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_pipe_update_one [2022-10-15 21:20:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu_busted [2022-10-15 21:20:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu_busted [2022-10-15 21:20:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_force_quiescent_state [2022-10-15 21:20:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_force_quiescent_state [2022-10-15 21:20:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_sched_expedited [2022-10-15 21:20:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_sched_expedited [2022-10-15 21:20:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure do_trace_rcu_torture_read [2022-10-15 21:20:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure do_trace_rcu_torture_read [2022-10-15 21:20:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_trace_clock_local [2022-10-15 21:20:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_trace_clock_local [2022-10-15 21:20:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-10-15 21:20:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-10-15 21:20:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-15 21:20:12,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-15 21:20:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_stats_print [2022-10-15 21:20:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_stats_print [2022-10-15 21:20:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-10-15 21:20:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-10-15 21:20:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-10-15 21:20:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-10-15 21:20:12,409 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:20:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:20:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-15 21:20:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-15 21:20:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:20:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-10-15 21:20:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-10-15 21:20:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:20:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:20:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_force_quiescent_state [2022-10-15 21:20:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_force_quiescent_state [2022-10-15 21:20:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-10-15 21:20:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-10-15 21:20:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-10-15 21:20:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-10-15 21:20:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:20:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2022-10-15 21:20:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2022-10-15 21:20:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_read_lock_held [2022-10-15 21:20:12,411 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_read_lock_held [2022-10-15 21:20:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-15 21:20:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-15 21:20:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:20:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-15 21:20:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-15 21:20:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-10-15 21:20:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-10-15 21:20:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_barrier [2022-10-15 21:20:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_barrier [2022-10-15 21:20:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_read_unlock [2022-10-15 21:20:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_read_unlock [2022-10-15 21:20:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:20:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-10-15 21:20:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-10-15 21:20:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2022-10-15 21:20:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2022-10-15 21:20:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:20:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure rcutorture_booster_cleanup [2022-10-15 21:20:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rcutorture_booster_cleanup [2022-10-15 21:20:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_bh_held [2022-10-15 21:20:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_bh_held [2022-10-15 21:20:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:20:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:20:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_check [2022-10-15 21:20:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_check [2022-10-15 21:20:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_no_completed [2022-10-15 21:20:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_no_completed [2022-10-15 21:20:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_cb [2022-10-15 21:20:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_cb [2022-10-15 21:20:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure init_rcu_head_on_stack [2022-10-15 21:20:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rcu_head_on_stack [2022-10-15 21:20:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-10-15 21:20:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-10-15 21:20:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure cond_synchronize_rcu [2022-10-15 21:20:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cond_synchronize_rcu [2022-10-15 21:20:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-15 21:20:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-15 21:20:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_torture_completed [2022-10-15 21:20:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_torture_completed [2022-10-15 21:20:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_sched_torture_deferred_free [2022-10-15 21:20:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_sched_torture_deferred_free [2022-10-15 21:20:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu_expedited [2022-10-15 21:20:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu_expedited [2022-10-15 21:20:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-10-15 21:20:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-10-15 21:20:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_read_lock [2022-10-15 21:20:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_read_lock [2022-10-15 21:20:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_sched_force_quiescent_state [2022-10-15 21:20:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_sched_force_quiescent_state [2022-10-15 21:20:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-10-15 21:20:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-10-15 21:20:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_deferred_free [2022-10-15 21:20:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_deferred_free [2022-10-15 21:20:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_torture_deferred_free [2022-10-15 21:20:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_torture_deferred_free [2022-10-15 21:20:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-10-15 21:20:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-10-15 21:20:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-10-15 21:20:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure delayed_work_timer_fn [2022-10-15 21:20:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:20:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_call [2022-10-15 21:20:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_call [2022-10-15 21:20:12,420 INFO L130 BoogieDeclarations]: Found specification of procedure call_srcu [2022-10-15 21:20:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure call_srcu [2022-10-15 21:20:12,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:20:12,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:20:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_print_module_parms [2022-10-15 21:20:12,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_print_module_parms [2022-10-15 21:20:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-15 21:20:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-15 21:20:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:20:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:20:13,052 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:20:13,057 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:20:13,220 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:20:16,783 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:20:16,825 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:20:16,826 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 21:20:16,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:20:16 BoogieIcfgContainer [2022-10-15 21:20:16,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:20:16,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:20:16,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:20:16,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:20:16,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:20:08" (1/3) ... [2022-10-15 21:20:16,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a7421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:20:16, skipping insertion in model container [2022-10-15 21:20:16,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:11" (2/3) ... [2022-10-15 21:20:16,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a7421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:20:16, skipping insertion in model container [2022-10-15 21:20:16,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:20:16" (3/3) ... [2022-10-15 21:20:16,845 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--rcu--rcutorture.ko-entry_point.cil.out.i [2022-10-15 21:20:16,869 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:20:16,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 100 error locations. [2022-10-15 21:20:17,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:20:17,023 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;@409312d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:20:17,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2022-10-15 21:20:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 2072 states, 1416 states have (on average 1.5134180790960452) internal successors, (2143), 1584 states have internal predecessors, (2143), 437 states have call successors, (437), 119 states have call predecessors, (437), 118 states have return successors, (427), 390 states have call predecessors, (427), 427 states have call successors, (427) [2022-10-15 21:20:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-15 21:20:17,069 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:17,070 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:20:17,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-15 21:20:17,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:17,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1752344284, now seen corresponding path program 1 times [2022-10-15 21:20:17,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:17,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540323472] [2022-10-15 21:20:17,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:17,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:20:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:20:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:20:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:20:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:20:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:20:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:20:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:20:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:20:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:20:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 21:20:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 21:20:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:20:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-15 21:20:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 21:20:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:20:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-15 21:20:18,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:18,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540323472] [2022-10-15 21:20:18,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540323472] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:18,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:18,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:18,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521179940] [2022-10-15 21:20:18,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:18,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:18,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:18,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:18,364 INFO L87 Difference]: Start difference. First operand has 2072 states, 1416 states have (on average 1.5134180790960452) internal successors, (2143), 1584 states have internal predecessors, (2143), 437 states have call successors, (437), 119 states have call predecessors, (437), 118 states have return successors, (427), 390 states have call predecessors, (427), 427 states have call successors, (427) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:23,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:23,772 INFO L93 Difference]: Finished difference Result 6128 states and 8967 transitions. [2022-10-15 21:20:23,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:20:23,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 134 [2022-10-15 21:20:23,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:23,833 INFO L225 Difference]: With dead ends: 6128 [2022-10-15 21:20:23,833 INFO L226 Difference]: Without dead ends: 4016 [2022-10-15 21:20:23,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:23,857 INFO L413 NwaCegarLoop]: 3284 mSDtfsCounter, 3499 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 1162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 6699 SdHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1162 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:23,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3864 Valid, 6699 Invalid, 3150 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1162 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-10-15 21:20:23,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2022-10-15 21:20:24,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 3842. [2022-10-15 21:20:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3842 states, 2707 states have (on average 1.5057258958256372) internal successors, (4076), 2922 states have internal predecessors, (4076), 804 states have call successors, (804), 231 states have call predecessors, (804), 231 states have return successors, (802), 728 states have call predecessors, (802), 802 states have call successors, (802) [2022-10-15 21:20:24,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3842 states to 3842 states and 5682 transitions. [2022-10-15 21:20:24,283 INFO L78 Accepts]: Start accepts. Automaton has 3842 states and 5682 transitions. Word has length 134 [2022-10-15 21:20:24,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:24,284 INFO L495 AbstractCegarLoop]: Abstraction has 3842 states and 5682 transitions. [2022-10-15 21:20:24,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:24,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3842 states and 5682 transitions. [2022-10-15 21:20:24,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-10-15 21:20:24,294 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:24,294 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:20:24,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:20:24,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-15 21:20:24,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:24,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1439375406, now seen corresponding path program 1 times [2022-10-15 21:20:24,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:24,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683154816] [2022-10-15 21:20:24,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:24,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:20:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:20:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:20:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:20:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:20:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:20:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:20:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:20:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:20:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:20:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 21:20:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 21:20:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:20:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-15 21:20:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 21:20:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:20:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,949 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-15 21:20:24,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:24,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683154816] [2022-10-15 21:20:24,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683154816] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:24,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:24,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:24,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176443215] [2022-10-15 21:20:24,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:24,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:24,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:24,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:24,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:24,956 INFO L87 Difference]: Start difference. First operand 3842 states and 5682 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:29,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:29,983 INFO L93 Difference]: Finished difference Result 11334 states and 16760 transitions. [2022-10-15 21:20:29,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:20:29,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 137 [2022-10-15 21:20:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:30,054 INFO L225 Difference]: With dead ends: 11334 [2022-10-15 21:20:30,055 INFO L226 Difference]: Without dead ends: 7543 [2022-10-15 21:20:30,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:30,085 INFO L413 NwaCegarLoop]: 3405 mSDtfsCounter, 3411 mSDsluCounter, 3458 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 1115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3766 SdHoareTripleChecker+Valid, 6863 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1115 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:30,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3766 Valid, 6863 Invalid, 3110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1115 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-10-15 21:20:30,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2022-10-15 21:20:30,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 7295. [2022-10-15 21:20:30,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7295 states, 5212 states have (on average 1.5051803530314658) internal successors, (7845), 5543 states have internal predecessors, (7845), 1524 states have call successors, (1524), 459 states have call predecessors, (1524), 459 states have return successors, (1520), 1372 states have call predecessors, (1520), 1520 states have call successors, (1520) [2022-10-15 21:20:30,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7295 states to 7295 states and 10889 transitions. [2022-10-15 21:20:30,631 INFO L78 Accepts]: Start accepts. Automaton has 7295 states and 10889 transitions. Word has length 137 [2022-10-15 21:20:30,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:30,634 INFO L495 AbstractCegarLoop]: Abstraction has 7295 states and 10889 transitions. [2022-10-15 21:20:30,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:30,634 INFO L276 IsEmpty]: Start isEmpty. Operand 7295 states and 10889 transitions. [2022-10-15 21:20:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-15 21:20:30,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:30,647 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:20:30,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:20:30,647 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-15 21:20:30,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:30,648 INFO L85 PathProgramCache]: Analyzing trace with hash 576682012, now seen corresponding path program 1 times [2022-10-15 21:20:30,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:30,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399116160] [2022-10-15 21:20:30,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:30,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:20:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:20:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:20:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:20:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:20:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:20:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:20:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:20:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:20:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:20:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 21:20:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 21:20:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:20:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-15 21:20:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 21:20:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:20:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-15 21:20:31,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:31,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399116160] [2022-10-15 21:20:31,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399116160] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:31,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:31,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:20:31,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674274282] [2022-10-15 21:20:31,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:31,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:31,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:31,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:31,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:31,459 INFO L87 Difference]: Start difference. First operand 7295 states and 10889 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:36,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:36,027 INFO L93 Difference]: Finished difference Result 17521 states and 26725 transitions. [2022-10-15 21:20:36,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:20:36,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 138 [2022-10-15 21:20:36,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:36,125 INFO L225 Difference]: With dead ends: 17521 [2022-10-15 21:20:36,126 INFO L226 Difference]: Without dead ends: 10277 [2022-10-15 21:20:36,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:36,258 INFO L413 NwaCegarLoop]: 3957 mSDtfsCounter, 1538 mSDsluCounter, 4346 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 8303 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:36,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 8303 Invalid, 2273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [479 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-10-15 21:20:36,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10277 states. [2022-10-15 21:20:36,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10277 to 7435. [2022-10-15 21:20:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7435 states, 5336 states have (on average 1.4971889055472263) internal successors, (7989), 5667 states have internal predecessors, (7989), 1540 states have call successors, (1540), 459 states have call predecessors, (1540), 459 states have return successors, (1536), 1388 states have call predecessors, (1536), 1536 states have call successors, (1536) [2022-10-15 21:20:36,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7435 states to 7435 states and 11065 transitions. [2022-10-15 21:20:36,826 INFO L78 Accepts]: Start accepts. Automaton has 7435 states and 11065 transitions. Word has length 138 [2022-10-15 21:20:36,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:36,827 INFO L495 AbstractCegarLoop]: Abstraction has 7435 states and 11065 transitions. [2022-10-15 21:20:36,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:36,827 INFO L276 IsEmpty]: Start isEmpty. Operand 7435 states and 11065 transitions. [2022-10-15 21:20:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-15 21:20:36,832 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:36,833 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:20:36,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:20:36,833 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-15 21:20:36,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:36,834 INFO L85 PathProgramCache]: Analyzing trace with hash 737280944, now seen corresponding path program 1 times [2022-10-15 21:20:36,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:36,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998697422] [2022-10-15 21:20:36,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:36,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:20:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:20:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:20:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:20:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:20:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:20:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:20:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:20:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:20:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:20:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 21:20:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 21:20:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:20:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-15 21:20:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 21:20:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:20:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-15 21:20:37,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:37,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998697422] [2022-10-15 21:20:37,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998697422] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:37,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:37,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:37,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074962170] [2022-10-15 21:20:37,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:37,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:37,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:37,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:37,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:37,384 INFO L87 Difference]: Start difference. First operand 7435 states and 11065 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:42,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:42,565 INFO L93 Difference]: Finished difference Result 22023 states and 32749 transitions. [2022-10-15 21:20:42,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:20:42,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 138 [2022-10-15 21:20:42,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:42,730 INFO L225 Difference]: With dead ends: 22023 [2022-10-15 21:20:42,730 INFO L226 Difference]: Without dead ends: 14639 [2022-10-15 21:20:42,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:42,778 INFO L413 NwaCegarLoop]: 3588 mSDtfsCounter, 3394 mSDsluCounter, 3594 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 1082 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3751 SdHoareTripleChecker+Valid, 7182 SdHoareTripleChecker+Invalid, 3077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1082 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:42,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3751 Valid, 7182 Invalid, 3077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1082 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-15 21:20:42,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14639 states. [2022-10-15 21:20:43,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14639 to 14243. [2022-10-15 21:20:43,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14243 states, 10296 states have (on average 1.4950466200466201) internal successors, (15393), 10859 states have internal predecessors, (15393), 2934 states have call successors, (2934), 913 states have call predecessors, (2934), 913 states have return successors, (2926), 2630 states have call predecessors, (2926), 2926 states have call successors, (2926) [2022-10-15 21:20:43,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14243 states to 14243 states and 21253 transitions. [2022-10-15 21:20:43,898 INFO L78 Accepts]: Start accepts. Automaton has 14243 states and 21253 transitions. Word has length 138 [2022-10-15 21:20:43,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:43,899 INFO L495 AbstractCegarLoop]: Abstraction has 14243 states and 21253 transitions. [2022-10-15 21:20:43,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:43,899 INFO L276 IsEmpty]: Start isEmpty. Operand 14243 states and 21253 transitions. [2022-10-15 21:20:43,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-15 21:20:43,904 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:43,904 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:20:43,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:20:43,905 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-15 21:20:43,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:43,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1202367484, now seen corresponding path program 1 times [2022-10-15 21:20:43,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:43,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749113244] [2022-10-15 21:20:43,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:43,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:20:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:20:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:20:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:20:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:20:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:20:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:20:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:20:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:20:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-15 21:20:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 21:20:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-15 21:20:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 21:20:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-15 21:20:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-15 21:20:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-15 21:20:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,427 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-15 21:20:44,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:44,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749113244] [2022-10-15 21:20:44,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749113244] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:44,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:44,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:44,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616698010] [2022-10-15 21:20:44,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:44,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:44,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:44,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:44,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:44,430 INFO L87 Difference]: Start difference. First operand 14243 states and 21253 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:50,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:50,091 INFO L93 Difference]: Finished difference Result 42235 states and 62961 transitions. [2022-10-15 21:20:50,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:20:50,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2022-10-15 21:20:50,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:50,291 INFO L225 Difference]: With dead ends: 42235 [2022-10-15 21:20:50,292 INFO L226 Difference]: Without dead ends: 28043 [2022-10-15 21:20:50,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:50,361 INFO L413 NwaCegarLoop]: 3816 mSDtfsCounter, 3343 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 1035 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3699 SdHoareTripleChecker+Valid, 7549 SdHoareTripleChecker+Invalid, 3031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1035 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:50,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3699 Valid, 7549 Invalid, 3031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1035 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-10-15 21:20:50,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28043 states. [2022-10-15 21:20:51,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28043 to 27351. [2022-10-15 21:20:52,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27351 states, 19852 states have (on average 1.4924944589965747) internal successors, (29629), 20879 states have internal predecessors, (29629), 5590 states have call successors, (5590), 1809 states have call predecessors, (5590), 1809 states have return successors, (5574), 4982 states have call predecessors, (5574), 5574 states have call successors, (5574) [2022-10-15 21:20:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27351 states to 27351 states and 40793 transitions. [2022-10-15 21:20:52,536 INFO L78 Accepts]: Start accepts. Automaton has 27351 states and 40793 transitions. Word has length 142 [2022-10-15 21:20:52,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:52,537 INFO L495 AbstractCegarLoop]: Abstraction has 27351 states and 40793 transitions. [2022-10-15 21:20:52,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-15 21:20:52,538 INFO L276 IsEmpty]: Start isEmpty. Operand 27351 states and 40793 transitions. [2022-10-15 21:20:52,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-15 21:20:52,541 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:52,542 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:20:52,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:20:52,548 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-15 21:20:52,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:52,549 INFO L85 PathProgramCache]: Analyzing trace with hash 609546782, now seen corresponding path program 1 times [2022-10-15 21:20:52,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:52,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177404546] [2022-10-15 21:20:52,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:52,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat