/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 [2022-10-16 13:26:48,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:26:48,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:26:48,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:26:48,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:26:48,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:26:48,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:26:48,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:26:48,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:26:48,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:26:48,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:26:48,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:26:48,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:26:48,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:26:48,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:26:48,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:26:48,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:26:48,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:26:48,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:26:48,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:26:48,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:26:48,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:26:48,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:26:48,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:26:48,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:26:48,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:26:48,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:26:48,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:26:48,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:26:48,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:26:48,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:26:48,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:26:48,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:26:48,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:26:48,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:26:48,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:26:48,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:26:48,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:26:48,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:26:48,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:26:48,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:26:48,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:26:48,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:26:48,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:26:48,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:26:48,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:26:48,807 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:26:48,807 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:26:48,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:26:48,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:26:48,809 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:26:48,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:26:48,809 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:26:48,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:26:48,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:26:48,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:26:48,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:26:48,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:26:48,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:26:48,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:26:48,812 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:26:48,812 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:26:48,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:26:48,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:26:48,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:26:48,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:26:48,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:26:48,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:26:48,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:26:48,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:26:48,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:26:48,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:26:48,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:26:48,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:26:48,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:26:48,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:26:49,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:26:49,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:26:49,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:26:49,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:26:49,299 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:26:49,301 INFO L432 ainManager$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 [2022-10-16 13:26:49,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d709f0b7e/48d48f29c6a645168549eec2411770cd/FLAG0ccd43153 [2022-10-16 13:26:50,413 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:26:50,414 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 [2022-10-16 13:26:50,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d709f0b7e/48d48f29c6a645168549eec2411770cd/FLAG0ccd43153 [2022-10-16 13:26:50,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d709f0b7e/48d48f29c6a645168549eec2411770cd [2022-10-16 13:26:50,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:26:50,862 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:26:50,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:26:50,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:26:50,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:26:50,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:26:50" (1/1) ... [2022-10-16 13:26:50,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb1473e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:50, skipping insertion in model container [2022-10-16 13:26:50,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:26:50" (1/1) ... [2022-10-16 13:26:50,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:26:51,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:26:51,471 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1863] [2022-10-16 13:26:51,472 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] [2022-10-16 13:26:52,376 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] [2022-10-16 13:26:53,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:26:53,219 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:26:53,283 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1863] [2022-10-16 13:26:53,284 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] [2022-10-16 13:26:53,343 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] [2022-10-16 13:26:53,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:26:53,940 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:26:53,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53 WrapperNode [2022-10-16 13:26:53,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:26:53,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:26:53,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:26:53,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:26:53,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,216 INFO L138 Inliner]: procedures = 294, calls = 1582, calls flagged for inlining = 112, calls inlined = 90, statements flattened = 3994 [2022-10-16 13:26:54,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:26:54,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:26:54,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:26:54,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:26:54,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,514 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:26:54,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:26:54,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:26:54,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:26:54,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (1/1) ... [2022-10-16 13:26:54,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:26:54,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:26:54,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 13:26:54,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 13:26:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-16 13:26:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-16 13:26:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_read_unlock [2022-10-16 13:26:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_read_unlock [2022-10-16 13:26:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-16 13:26:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_delay [2022-10-16 13:26:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_delay [2022-10-16 13:26:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_torture_read_lock [2022-10-16 13:26:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_torture_read_lock [2022-10-16 13:26:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:26:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:26:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_read_lock [2022-10-16 13:26:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_read_lock [2022-10-16 13:26:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lockdep_current_cpu_online [2022-10-16 13:26:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lockdep_current_cpu_online [2022-10-16 13:26:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_barrier_sched [2022-10-16 13:26:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_barrier_sched [2022-10-16 13:26:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-16 13:26:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-16 13:26:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-16 13:26:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-16 13:26:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure call_rcu_busted [2022-10-16 13:26:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure call_rcu_busted [2022-10-16 13:26:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure process_srcu [2022-10-16 13:26:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure process_srcu [2022-10-16 13:26:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:26:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:26:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2022-10-16 13:26:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2022-10-16 13:26:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-16 13:26:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_sched [2022-10-16 13:26:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_sched [2022-10-16 13:26:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_rcu_head_on_stack [2022-10-16 13:26:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_rcu_head_on_stack [2022-10-16 13:26:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_stats [2022-10-16 13:26:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_stats [2022-10-16 13:26:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2022-10-16 13:26:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2022-10-16 13:26:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_8 [2022-10-16 13:26:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_8 [2022-10-16 13:26:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 13:26:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 13:26:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2022-10-16 13:26:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2022-10-16 13:26:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:26:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:26:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2022-10-16 13:26:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2022-10-16 13:26:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-10-16 13:26:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-10-16 13:26:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2022-10-16 13:26:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2022-10-16 13:26:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_read_delay [2022-10-16 13:26:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_read_delay [2022-10-16 13:26:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-16 13:26:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-16 13:26:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_deferred_free [2022-10-16 13:26:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_deferred_free [2022-10-16 13:26:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2022-10-16 13:26:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2022-10-16 13:26:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:26:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:26:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2022-10-16 13:26:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2022-10-16 13:26:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure sched_torture_read_unlock [2022-10-16 13:26:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sched_torture_read_unlock [2022-10-16 13:26:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_cleanup [2022-10-16 13:26:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_cleanup [2022-10-16 13:26:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-10-16 13:26:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-10-16 13:26:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-10-16 13:26:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-10-16 13:26:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_free [2022-10-16 13:26:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_free [2022-10-16 13:26:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure sched_torture_read_lock [2022-10-16 13:26:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sched_torture_read_lock [2022-10-16 13:26:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_timer [2022-10-16 13:26:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_timer [2022-10-16 13:26:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_synchronize [2022-10-16 13:26:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_synchronize [2022-10-16 13:26:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:26:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 13:26:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 13:26:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-10-16 13:26:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-10-16 13:26:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu_bh [2022-10-16 13:26:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu_bh [2022-10-16 13:26:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:26:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_completed [2022-10-16 13:26:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_completed [2022-10-16 13:26:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-16 13:26:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-16 13:26:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure rcutorture_trace_dump [2022-10-16 13:26:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rcutorture_trace_dump [2022-10-16 13:26:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_sync_torture_init [2022-10-16 13:26:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_sync_torture_init [2022-10-16 13:26:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:26:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:26:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure call_rcu_bh [2022-10-16 13:26:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure call_rcu_bh [2022-10-16 13:26:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_completed [2022-10-16 13:26:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_completed [2022-10-16 13:26:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_barrier_bh [2022-10-16 13:26:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_barrier_bh [2022-10-16 13:26:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2022-10-16 13:26:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2022-10-16 13:26:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 13:26:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 13:26:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure rcutorture_record_test_transition [2022-10-16 13:26:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure rcutorture_record_test_transition [2022-10-16 13:26:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure get_state_synchronize_rcu [2022-10-16 13:26:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure get_state_synchronize_rcu [2022-10-16 13:26:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure rcutorture_booster_init [2022-10-16 13:26:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure rcutorture_booster_init [2022-10-16 13:26:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 13:26:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 13:26:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_barrier [2022-10-16 13:26:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_barrier [2022-10-16 13:26:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-16 13:26:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-16 13:26:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_synchronize_expedited [2022-10-16 13:26:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_synchronize_expedited [2022-10-16 13:26:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:26:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:26:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure __this_cpu_preempt_check [2022-10-16 13:26:54,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __this_cpu_preempt_check [2022-10-16 13:26:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu_bh_expedited [2022-10-16 13:26:54,766 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu_bh_expedited [2022-10-16 13:26:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2022-10-16 13:26:54,767 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2022-10-16 13:26:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_torture_read_unlock [2022-10-16 13:26:54,767 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_torture_read_unlock [2022-10-16 13:26:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure call_rcu_sched [2022-10-16 13:26:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure call_rcu_sched [2022-10-16 13:26:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-16 13:26:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-16 13:26:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_busted_torture_deferred_free [2022-10-16 13:26:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_busted_torture_deferred_free [2022-10-16 13:26:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:26:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_pipe_update_one [2022-10-16 13:26:54,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_pipe_update_one [2022-10-16 13:26:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu_busted [2022-10-16 13:26:54,769 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu_busted [2022-10-16 13:26:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_force_quiescent_state [2022-10-16 13:26:54,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_force_quiescent_state [2022-10-16 13:26:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_sched_expedited [2022-10-16 13:26:54,769 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_sched_expedited [2022-10-16 13:26:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure do_trace_rcu_torture_read [2022-10-16 13:26:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure do_trace_rcu_torture_read [2022-10-16 13:26:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_trace_clock_local [2022-10-16 13:26:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_trace_clock_local [2022-10-16 13:26:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-10-16 13:26:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-10-16 13:26:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 13:26:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 13:26:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_stats_print [2022-10-16 13:26:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_stats_print [2022-10-16 13:26:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-10-16 13:26:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-10-16 13:26:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-10-16 13:26:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-10-16 13:26:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:26:54,771 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:26:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-16 13:26:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-16 13:26:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:26:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-10-16 13:26:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-10-16 13:26:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:26:54,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:26:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_force_quiescent_state [2022-10-16 13:26:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_force_quiescent_state [2022-10-16 13:26:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-10-16 13:26:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-10-16 13:26:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-10-16 13:26:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-10-16 13:26:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:26:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2022-10-16 13:26:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2022-10-16 13:26:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_read_lock_held [2022-10-16 13:26:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_read_lock_held [2022-10-16 13:26:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-16 13:26:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-16 13:26:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:26:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-16 13:26:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-16 13:26:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-10-16 13:26:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-10-16 13:26:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_barrier [2022-10-16 13:26:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_barrier [2022-10-16 13:26:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_read_unlock [2022-10-16 13:26:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_read_unlock [2022-10-16 13:26:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:26:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-10-16 13:26:54,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-10-16 13:26:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2022-10-16 13:26:54,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2022-10-16 13:26:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 13:26:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure rcutorture_booster_cleanup [2022-10-16 13:26:54,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rcutorture_booster_cleanup [2022-10-16 13:26:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_bh_held [2022-10-16 13:26:54,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_bh_held [2022-10-16 13:26:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:26:54,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:26:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_check [2022-10-16 13:26:54,777 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_check [2022-10-16 13:26:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_no_completed [2022-10-16 13:26:54,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_no_completed [2022-10-16 13:26:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_cb [2022-10-16 13:26:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_cb [2022-10-16 13:26:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure init_rcu_head_on_stack [2022-10-16 13:26:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rcu_head_on_stack [2022-10-16 13:26:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-10-16 13:26:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-10-16 13:26:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure cond_synchronize_rcu [2022-10-16 13:26:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cond_synchronize_rcu [2022-10-16 13:26:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-16 13:26:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-16 13:26:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_torture_completed [2022-10-16 13:26:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_torture_completed [2022-10-16 13:26:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_sched_torture_deferred_free [2022-10-16 13:26:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_sched_torture_deferred_free [2022-10-16 13:26:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu_expedited [2022-10-16 13:26:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu_expedited [2022-10-16 13:26:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-10-16 13:26:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-10-16 13:26:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_read_lock [2022-10-16 13:26:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_read_lock [2022-10-16 13:26:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_sched_force_quiescent_state [2022-10-16 13:26:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_sched_force_quiescent_state [2022-10-16 13:26:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-10-16 13:26:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-10-16 13:26:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_deferred_free [2022-10-16 13:26:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_deferred_free [2022-10-16 13:26:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_bh_torture_deferred_free [2022-10-16 13:26:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_bh_torture_deferred_free [2022-10-16 13:26:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-10-16 13:26:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-10-16 13:26:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-10-16 13:26:54,781 INFO L138 BoogieDeclarations]: Found implementation of procedure delayed_work_timer_fn [2022-10-16 13:26:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:26:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_torture_call [2022-10-16 13:26:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_torture_call [2022-10-16 13:26:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure call_srcu [2022-10-16 13:26:54,782 INFO L138 BoogieDeclarations]: Found implementation of procedure call_srcu [2022-10-16 13:26:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:26:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:26:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_torture_print_module_parms [2022-10-16 13:26:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_torture_print_module_parms [2022-10-16 13:26:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-16 13:26:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-16 13:26:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 13:26:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 13:26:55,446 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:26:55,451 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:26:55,679 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:26:59,213 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:26:59,237 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:26:59,237 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 13:26:59,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:26:59 BoogieIcfgContainer [2022-10-16 13:26:59,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:26:59,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:26:59,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:26:59,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:26:59,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:26:50" (1/3) ... [2022-10-16 13:26:59,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f0a744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:26:59, skipping insertion in model container [2022-10-16 13:26:59,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:26:53" (2/3) ... [2022-10-16 13:26:59,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f0a744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:26:59, skipping insertion in model container [2022-10-16 13:26:59,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:26:59" (3/3) ... [2022-10-16 13:26:59,255 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 [2022-10-16 13:26:59,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:26:59,281 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 100 error locations. [2022-10-16 13:26:59,401 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:26:59,410 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;@595e597e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:26:59,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2022-10-16 13:26:59,424 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) [2022-10-16 13:26:59,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-16 13:26:59,466 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:26:59,467 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] [2022-10-16 13:26:59,468 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)] === [2022-10-16 13:26:59,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:26:59,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1752344284, now seen corresponding path program 1 times [2022-10-16 13:26:59,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:26:59,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291817764] [2022-10-16 13:26:59,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:26:59,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:27:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:27:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:27:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:27:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:27:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:00,827 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:27:00,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:00,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291817764] [2022-10-16 13:27:00,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291817764] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:00,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:00,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:27:00,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640456683] [2022-10-16 13:27:00,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:00,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:00,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:00,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:00,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:00,900 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) [2022-10-16 13:27:07,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:07,014 INFO L93 Difference]: Finished difference Result 6128 states and 8967 transitions. [2022-10-16 13:27:07,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:27:07,017 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 [2022-10-16 13:27:07,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:07,075 INFO L225 Difference]: With dead ends: 6128 [2022-10-16 13:27:07,075 INFO L226 Difference]: Without dead ends: 4016 [2022-10-16 13:27:07,092 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 [2022-10-16 13:27:07,099 INFO L413 NwaCegarLoop]: 3287 mSDtfsCounter, 3499 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 1162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3863 SdHoareTripleChecker+Valid, 6707 SdHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1162 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:07,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3863 Valid, 6707 Invalid, 3150 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1162 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-10-16 13:27:07,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2022-10-16 13:27:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 3842. [2022-10-16 13:27:07,503 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) [2022-10-16 13:27:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3842 states to 3842 states and 5682 transitions. [2022-10-16 13:27:07,543 INFO L78 Accepts]: Start accepts. Automaton has 3842 states and 5682 transitions. Word has length 134 [2022-10-16 13:27:07,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:07,544 INFO L495 AbstractCegarLoop]: Abstraction has 3842 states and 5682 transitions. [2022-10-16 13:27:07,544 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) [2022-10-16 13:27:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3842 states and 5682 transitions. [2022-10-16 13:27:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-10-16 13:27:07,557 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:07,558 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] [2022-10-16 13:27:07,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:27:07,559 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)] === [2022-10-16 13:27:07,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1439375406, now seen corresponding path program 1 times [2022-10-16 13:27:07,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:07,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831518287] [2022-10-16 13:27:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:07,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:27:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:27:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:27:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:27:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:27:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:27:08,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:08,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831518287] [2022-10-16 13:27:08,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831518287] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:08,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:08,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:27:08,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30289014] [2022-10-16 13:27:08,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:08,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:08,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:08,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:08,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:08,325 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) [2022-10-16 13:27:13,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:13,947 INFO L93 Difference]: Finished difference Result 11334 states and 16760 transitions. [2022-10-16 13:27:13,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:27:13,948 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 [2022-10-16 13:27:13,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:14,012 INFO L225 Difference]: With dead ends: 11334 [2022-10-16 13:27:14,012 INFO L226 Difference]: Without dead ends: 7543 [2022-10-16 13:27:14,033 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 [2022-10-16 13:27:14,035 INFO L413 NwaCegarLoop]: 3406 mSDtfsCounter, 3411 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 1115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3767 SdHoareTripleChecker+Valid, 6867 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1115 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:14,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3767 Valid, 6867 Invalid, 3110 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1115 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-10-16 13:27:14,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2022-10-16 13:27:14,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 7295. [2022-10-16 13:27:14,542 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) [2022-10-16 13:27:14,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7295 states to 7295 states and 10889 transitions. [2022-10-16 13:27:14,598 INFO L78 Accepts]: Start accepts. Automaton has 7295 states and 10889 transitions. Word has length 137 [2022-10-16 13:27:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:14,599 INFO L495 AbstractCegarLoop]: Abstraction has 7295 states and 10889 transitions. [2022-10-16 13:27:14,600 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) [2022-10-16 13:27:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 7295 states and 10889 transitions. [2022-10-16 13:27:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 13:27:14,606 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:14,606 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] [2022-10-16 13:27:14,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:27:14,607 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)] === [2022-10-16 13:27:14,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:14,607 INFO L85 PathProgramCache]: Analyzing trace with hash 576682012, now seen corresponding path program 1 times [2022-10-16 13:27:14,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:14,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660079100] [2022-10-16 13:27:14,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:14,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:27:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:27:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:27:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:27:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:27:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:27:15,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:15,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660079100] [2022-10-16 13:27:15,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660079100] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:15,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:15,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:27:15,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613579746] [2022-10-16 13:27:15,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:15,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:15,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:15,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:15,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:15,434 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) [2022-10-16 13:27:19,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:19,822 INFO L93 Difference]: Finished difference Result 17521 states and 26725 transitions. [2022-10-16 13:27:19,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:27:19,823 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 [2022-10-16 13:27:19,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:19,913 INFO L225 Difference]: With dead ends: 17521 [2022-10-16 13:27:19,913 INFO L226 Difference]: Without dead ends: 10277 [2022-10-16 13:27:19,948 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 [2022-10-16 13:27:19,960 INFO L413 NwaCegarLoop]: 3959 mSDtfsCounter, 1538 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 8306 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:19,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 8306 Invalid, 2273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [479 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-10-16 13:27:19,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10277 states. [2022-10-16 13:27:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10277 to 7435. [2022-10-16 13:27:20,548 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) [2022-10-16 13:27:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7435 states to 7435 states and 11065 transitions. [2022-10-16 13:27:20,590 INFO L78 Accepts]: Start accepts. Automaton has 7435 states and 11065 transitions. Word has length 138 [2022-10-16 13:27:20,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:20,596 INFO L495 AbstractCegarLoop]: Abstraction has 7435 states and 11065 transitions. [2022-10-16 13:27:20,597 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) [2022-10-16 13:27:20,597 INFO L276 IsEmpty]: Start isEmpty. Operand 7435 states and 11065 transitions. [2022-10-16 13:27:20,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 13:27:20,602 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:20,602 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] [2022-10-16 13:27:20,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:27:20,603 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)] === [2022-10-16 13:27:20,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:20,604 INFO L85 PathProgramCache]: Analyzing trace with hash 737280944, now seen corresponding path program 1 times [2022-10-16 13:27:20,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:20,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561643938] [2022-10-16 13:27:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:20,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:27:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:27:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:27:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:27:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:27:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:21,122 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:27:21,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:21,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561643938] [2022-10-16 13:27:21,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561643938] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:21,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:21,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:27:21,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31853503] [2022-10-16 13:27:21,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:21,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:21,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:21,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:21,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:21,126 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) [2022-10-16 13:27:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:26,318 INFO L93 Difference]: Finished difference Result 22023 states and 32749 transitions. [2022-10-16 13:27:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:27:26,319 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 [2022-10-16 13:27:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:26,418 INFO L225 Difference]: With dead ends: 22023 [2022-10-16 13:27:26,419 INFO L226 Difference]: Without dead ends: 14639 [2022-10-16 13:27:26,456 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 [2022-10-16 13:27:26,457 INFO L413 NwaCegarLoop]: 3587 mSDtfsCounter, 3394 mSDsluCounter, 3591 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 1082 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3750 SdHoareTripleChecker+Valid, 7178 SdHoareTripleChecker+Invalid, 3077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1082 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:26,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3750 Valid, 7178 Invalid, 3077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1082 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-10-16 13:27:26,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14639 states. [2022-10-16 13:27:27,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14639 to 14243. [2022-10-16 13:27:27,140 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) [2022-10-16 13:27:27,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14243 states to 14243 states and 21253 transitions. [2022-10-16 13:27:27,340 INFO L78 Accepts]: Start accepts. Automaton has 14243 states and 21253 transitions. Word has length 138 [2022-10-16 13:27:27,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:27,340 INFO L495 AbstractCegarLoop]: Abstraction has 14243 states and 21253 transitions. [2022-10-16 13:27:27,341 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) [2022-10-16 13:27:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 14243 states and 21253 transitions. [2022-10-16 13:27:27,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-16 13:27:27,345 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:27,346 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] [2022-10-16 13:27:27,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:27:27,346 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)] === [2022-10-16 13:27:27,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1202367484, now seen corresponding path program 1 times [2022-10-16 13:27:27,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:27,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427605654] [2022-10-16 13:27:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:27,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:27:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:27:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:27:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:27:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:27:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:27:27,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:27,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427605654] [2022-10-16 13:27:27,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427605654] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:27,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:27,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:27:27,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400146628] [2022-10-16 13:27:27,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:27,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:27,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:27,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:27,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:27,804 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) [2022-10-16 13:27:33,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:33,043 INFO L93 Difference]: Finished difference Result 42235 states and 62961 transitions. [2022-10-16 13:27:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:27:33,049 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 [2022-10-16 13:27:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:33,176 INFO L225 Difference]: With dead ends: 42235 [2022-10-16 13:27:33,176 INFO L226 Difference]: Without dead ends: 28043 [2022-10-16 13:27:33,237 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 [2022-10-16 13:27:33,242 INFO L413 NwaCegarLoop]: 3815 mSDtfsCounter, 3343 mSDsluCounter, 3732 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 1035 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 7547 SdHoareTripleChecker+Invalid, 3031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1035 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:33,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3700 Valid, 7547 Invalid, 3031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1035 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-16 13:27:33,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28043 states. [2022-10-16 13:27:34,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28043 to 27351. [2022-10-16 13:27:34,803 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) [2022-10-16 13:27:34,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27351 states to 27351 states and 40793 transitions. [2022-10-16 13:27:34,955 INFO L78 Accepts]: Start accepts. Automaton has 27351 states and 40793 transitions. Word has length 142 [2022-10-16 13:27:34,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:34,956 INFO L495 AbstractCegarLoop]: Abstraction has 27351 states and 40793 transitions. [2022-10-16 13:27:34,956 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) [2022-10-16 13:27:34,957 INFO L276 IsEmpty]: Start isEmpty. Operand 27351 states and 40793 transitions. [2022-10-16 13:27:34,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-10-16 13:27:34,960 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:34,960 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] [2022-10-16 13:27:34,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:27:34,961 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)] === [2022-10-16 13:27:34,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:34,961 INFO L85 PathProgramCache]: Analyzing trace with hash 609546782, now seen corresponding path program 1 times [2022-10-16 13:27:34,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:34,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111210693] [2022-10-16 13:27:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:34,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:27:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:27:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:27:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:27:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:27:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:27:35,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:35,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111210693] [2022-10-16 13:27:35,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111210693] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:35,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:35,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:27:35,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124025927] [2022-10-16 13:27:35,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:35,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:35,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:35,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:35,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:35,807 INFO L87 Difference]: Start difference. First operand 27351 states and 40793 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) [2022-10-16 13:27:41,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:41,897 INFO L93 Difference]: Finished difference Result 80911 states and 120429 transitions. [2022-10-16 13:27:41,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:27:41,898 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 [2022-10-16 13:27:41,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:42,187 INFO L225 Difference]: With dead ends: 80911 [2022-10-16 13:27:42,188 INFO L226 Difference]: Without dead ends: 53611 [2022-10-16 13:27:42,276 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 [2022-10-16 13:27:42,279 INFO L413 NwaCegarLoop]: 4083 mSDtfsCounter, 3225 mSDsluCounter, 3843 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 987 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 7926 SdHoareTripleChecker+Invalid, 2997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 987 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:42,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3576 Valid, 7926 Invalid, 2997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [987 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-16 13:27:42,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53611 states. [2022-10-16 13:27:45,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53611 to 52327. [2022-10-16 13:27:45,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52327 states, 38060 states have (on average 1.4885181292695744) internal successors, (56653), 40015 states have internal predecessors, (56653), 10566 states have call successors, (10566), 3601 states have call predecessors, (10566), 3601 states have return successors, (10534), 9350 states have call predecessors, (10534), 10534 states have call successors, (10534) [2022-10-16 13:27:45,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52327 states to 52327 states and 77753 transitions. [2022-10-16 13:27:45,931 INFO L78 Accepts]: Start accepts. Automaton has 52327 states and 77753 transitions. Word has length 142 [2022-10-16 13:27:45,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:45,931 INFO L495 AbstractCegarLoop]: Abstraction has 52327 states and 77753 transitions. [2022-10-16 13:27:45,932 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) [2022-10-16 13:27:45,932 INFO L276 IsEmpty]: Start isEmpty. Operand 52327 states and 77753 transitions. [2022-10-16 13:27:45,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-16 13:27:45,940 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:45,940 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:27:45,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:27:45,943 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-16 13:27:45,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:45,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1881616321, now seen corresponding path program 1 times [2022-10-16 13:27:45,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:45,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868620633] [2022-10-16 13:27:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:45,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:27:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:27:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:27:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:27:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:27:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:27:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:27:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:27:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:27:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:27:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:27:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:27:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:27:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:27:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:27:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:27:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:27:46,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:46,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868620633] [2022-10-16 13:27:46,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868620633] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:27:46,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941838605] [2022-10-16 13:27:46,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:46,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:27:46,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:27:46,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:27:46,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:27:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:47,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 2953 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:27:47,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:27:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:27:47,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:27:47,964 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:27:47,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941838605] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:27:47,965 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:27:47,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-16 13:27:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508660881] [2022-10-16 13:27:47,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:27:47,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:27:47,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:47,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:27:47,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:27:47,968 INFO L87 Difference]: Start difference. First operand 52327 states and 77753 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-16 13:28:01,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:01,067 INFO L93 Difference]: Finished difference Result 181728 states and 286221 transitions. [2022-10-16 13:28:01,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 13:28:01,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2022-10-16 13:28:01,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:01,786 INFO L225 Difference]: With dead ends: 181728 [2022-10-16 13:28:01,787 INFO L226 Difference]: Without dead ends: 129452 [2022-10-16 13:28:01,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:28:01,989 INFO L413 NwaCegarLoop]: 5646 mSDtfsCounter, 7928 mSDsluCounter, 11869 mSDsCounter, 0 mSdLazyCounter, 5231 mSolverCounterSat, 1630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9051 SdHoareTripleChecker+Valid, 17515 SdHoareTripleChecker+Invalid, 6861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1630 IncrementalHoareTripleChecker+Valid, 5231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:01,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9051 Valid, 17515 Invalid, 6861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1630 Valid, 5231 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-10-16 13:28:02,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129452 states. [2022-10-16 13:28:06,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129452 to 53570. [2022-10-16 13:28:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53570 states, 39116 states have (on average 1.4859648225789959) internal successors, (58125), 41066 states have internal predecessors, (58125), 10758 states have call successors, (10758), 3601 states have call predecessors, (10758), 3601 states have return successors, (10726), 9542 states have call predecessors, (10726), 10726 states have call successors, (10726) [2022-10-16 13:28:06,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53570 states to 53570 states and 79609 transitions. [2022-10-16 13:28:06,887 INFO L78 Accepts]: Start accepts. Automaton has 53570 states and 79609 transitions. Word has length 143 [2022-10-16 13:28:06,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:06,888 INFO L495 AbstractCegarLoop]: Abstraction has 53570 states and 79609 transitions. [2022-10-16 13:28:06,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-10-16 13:28:06,888 INFO L276 IsEmpty]: Start isEmpty. Operand 53570 states and 79609 transitions. [2022-10-16 13:28:06,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-16 13:28:06,892 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:06,892 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:28:06,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:28:07,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:28:07,108 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-16 13:28:07,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:07,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1799431801, now seen corresponding path program 1 times [2022-10-16 13:28:07,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:07,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815771971] [2022-10-16 13:28:07,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:07,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:07,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:28:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:07,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:28:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:07,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:28:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:07,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:28:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:07,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:28:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:07,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:28:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:28:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:07,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:28:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:28:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:28:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:28:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:28:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:28:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:28:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:28:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:28:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:28:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:28:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:28:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:28:08,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:28:08,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815771971] [2022-10-16 13:28:08,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815771971] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:28:08,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584143689] [2022-10-16 13:28:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:08,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:28:08,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:28:08,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:28:08,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 13:28:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:09,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:28:09,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:28:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:28:09,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:28:09,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584143689] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:28:09,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:28:09,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 13:28:09,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619836792] [2022-10-16 13:28:09,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:28:09,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:28:09,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:28:09,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:28:09,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:28:09,156 INFO L87 Difference]: Start difference. First operand 53570 states and 79609 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (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) [2022-10-16 13:28:13,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:13,027 INFO L93 Difference]: Finished difference Result 82800 states and 128633 transitions. [2022-10-16 13:28:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:28:13,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (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 144 [2022-10-16 13:28:13,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:13,324 INFO L225 Difference]: With dead ends: 82800 [2022-10-16 13:28:13,324 INFO L226 Difference]: Without dead ends: 82793 [2022-10-16 13:28:13,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:28:13,357 INFO L413 NwaCegarLoop]: 4387 mSDtfsCounter, 2689 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 8293 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:13,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3094 Valid, 8293 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 13:28:13,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82793 states. [2022-10-16 13:28:16,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82793 to 53339. [2022-10-16 13:28:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53339 states, 38924 states have (on average 1.4793186722844518) internal successors, (57581), 40867 states have internal predecessors, (57581), 10726 states have call successors, (10726), 3601 states have call predecessors, (10726), 3601 states have return successors, (10694), 9510 states have call predecessors, (10694), 10694 states have call successors, (10694) [2022-10-16 13:28:17,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53339 states to 53339 states and 79001 transitions. [2022-10-16 13:28:17,016 INFO L78 Accepts]: Start accepts. Automaton has 53339 states and 79001 transitions. Word has length 144 [2022-10-16 13:28:17,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:17,017 INFO L495 AbstractCegarLoop]: Abstraction has 53339 states and 79001 transitions. [2022-10-16 13:28:17,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (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) [2022-10-16 13:28:17,017 INFO L276 IsEmpty]: Start isEmpty. Operand 53339 states and 79001 transitions. [2022-10-16 13:28:17,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-16 13:28:17,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:17,021 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:28:17,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 13:28:17,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 13:28:17,234 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting rcu_torture_cleanupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-16 13:28:17,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:17,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1295755692, now seen corresponding path program 1 times [2022-10-16 13:28:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:17,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070544295] [2022-10-16 13:28:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:17,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:28:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:28:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:28:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:28:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:28:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:28:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:28:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:28:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:28:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:28:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:28:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:28:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:28:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:28:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:28:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:28:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:28:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:28:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:28:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 13:28:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-10-16 13:28:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-16 13:28:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2022-10-16 13:28:17,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:28:17,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070544295] [2022-10-16 13:28:17,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070544295] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:28:17,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:28:17,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:28:17,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330527927] [2022-10-16 13:28:17,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:28:17,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:28:17,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:28:17,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:28:17,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:28:17,755 INFO L87 Difference]: Start difference. First operand 53339 states and 79001 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 13:28:26,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:26,537 INFO L93 Difference]: Finished difference Result 153412 states and 227342 transitions. [2022-10-16 13:28:26,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:28:26,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 149 [2022-10-16 13:28:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:26,959 INFO L225 Difference]: With dead ends: 153412 [2022-10-16 13:28:26,960 INFO L226 Difference]: Without dead ends: 100124 [2022-10-16 13:28:27,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:28:27,096 INFO L413 NwaCegarLoop]: 4252 mSDtfsCounter, 3316 mSDsluCounter, 3876 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 934 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3681 SdHoareTripleChecker+Valid, 8128 SdHoareTripleChecker+Invalid, 2773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:27,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3681 Valid, 8128 Invalid, 2773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [934 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-10-16 13:28:27,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100124 states. [2022-10-16 13:28:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100124 to 97676. [2022-10-16 13:28:32,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97676 states, 71037 states have (on average 1.4851697002970283) internal successors, (105502), 74804 states have internal predecessors, (105502), 19542 states have call successors, (19542), 7009 states have call predecessors, (19542), 7009 states have return successors, (19510), 17142 states have call predecessors, (19510), 19510 states have call successors, (19510) [2022-10-16 13:28:32,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97676 states to 97676 states and 144554 transitions. [2022-10-16 13:28:32,607 INFO L78 Accepts]: Start accepts. Automaton has 97676 states and 144554 transitions. Word has length 149 [2022-10-16 13:28:32,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:32,608 INFO L495 AbstractCegarLoop]: Abstraction has 97676 states and 144554 transitions. [2022-10-16 13:28:32,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 13:28:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 97676 states and 144554 transitions. [2022-10-16 13:28:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-10-16 13:28:32,614 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:32,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:28:32,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 13:28:32,615 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting rcutorture_booster_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-16 13:28:32,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:32,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1804818450, now seen corresponding path program 1 times [2022-10-16 13:28:32,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:32,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119949855] [2022-10-16 13:28:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:32,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:28:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:28:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:28:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:28:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:28:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:28:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:28:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:28:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:28:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:28:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:32,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:28:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:28:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:28:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:28:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:28:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:28:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:28:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:28:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:28:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 13:28:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-10-16 13:28:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:28:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:28:33,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:28:33,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119949855] [2022-10-16 13:28:33,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119949855] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:28:33,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:28:33,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:28:33,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622023930] [2022-10-16 13:28:33,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:28:33,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:28:33,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:28:33,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:28:33,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:28:33,128 INFO L87 Difference]: Start difference. First operand 97676 states and 144554 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 13:28:46,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:46,940 INFO L93 Difference]: Finished difference Result 295971 states and 438495 transitions. [2022-10-16 13:28:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:28:46,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 153 [2022-10-16 13:28:46,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:47,955 INFO L225 Difference]: With dead ends: 295971 [2022-10-16 13:28:47,960 INFO L226 Difference]: Without dead ends: 198346 [2022-10-16 13:28:48,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:28:48,507 INFO L413 NwaCegarLoop]: 4489 mSDtfsCounter, 3364 mSDsluCounter, 4207 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 955 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3749 SdHoareTripleChecker+Valid, 8696 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 955 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:48,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3749 Valid, 8696 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [955 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-10-16 13:28:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198346 states. [2022-10-16 13:28:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198346 to 193580. [2022-10-16 13:28:58,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193580 states, 140701 states have (on average 1.4853483628403494) internal successors, (208990), 148084 states have internal predecessors, (208990), 38806 states have call successors, (38806), 13985 states have call predecessors, (38806), 13985 states have return successors, (38742), 34006 states have call predecessors, (38742), 38742 states have call successors, (38742) [2022-10-16 13:29:00,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193580 states to 193580 states and 286538 transitions. [2022-10-16 13:29:00,226 INFO L78 Accepts]: Start accepts. Automaton has 193580 states and 286538 transitions. Word has length 153 [2022-10-16 13:29:00,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:29:00,227 INFO L495 AbstractCegarLoop]: Abstraction has 193580 states and 286538 transitions. [2022-10-16 13:29:00,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 13:29:00,228 INFO L276 IsEmpty]: Start isEmpty. Operand 193580 states and 286538 transitions. [2022-10-16 13:29:00,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-10-16 13:29:00,238 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:29:00,238 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:29:00,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 13:29:00,239 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-16 13:29:00,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:29:00,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1162963047, now seen corresponding path program 1 times [2022-10-16 13:29:00,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:29:00,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408218065] [2022-10-16 13:29:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:29:00,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:29:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:29:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:29:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:29:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:29:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:29:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:29:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:29:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:29:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:29:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:29:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:29:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:29:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:29:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:29:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:29:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:29:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:29:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:29:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:29:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:00,686 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:29:00,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:29:00,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408218065] [2022-10-16 13:29:00,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408218065] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:29:00,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:29:00,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:29:00,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782102197] [2022-10-16 13:29:00,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:29:00,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:29:00,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:29:00,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:29:00,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:29:00,690 INFO L87 Difference]: Start difference. First operand 193580 states and 286538 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-10-16 13:29:17,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:29:17,611 INFO L93 Difference]: Finished difference Result 436872 states and 657344 transitions. [2022-10-16 13:29:17,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:29:17,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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 153 [2022-10-16 13:29:17,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:29:19,220 INFO L225 Difference]: With dead ends: 436872 [2022-10-16 13:29:19,221 INFO L226 Difference]: Without dead ends: 243343 [2022-10-16 13:29:19,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:29:19,689 INFO L413 NwaCegarLoop]: 3895 mSDtfsCounter, 1586 mSDsluCounter, 4152 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1917 SdHoareTripleChecker+Valid, 8047 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:29:19,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1917 Valid, 8047 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-10-16 13:29:19,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243343 states. [2022-10-16 13:29:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243343 to 193644. [2022-10-16 13:29:31,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193644 states, 140765 states have (on average 1.4851276950946612) internal successors, (209054), 148148 states have internal predecessors, (209054), 38806 states have call successors, (38806), 13985 states have call predecessors, (38806), 13985 states have return successors, (38742), 34006 states have call predecessors, (38742), 38742 states have call successors, (38742) [2022-10-16 13:29:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193644 states to 193644 states and 286602 transitions. [2022-10-16 13:29:33,325 INFO L78 Accepts]: Start accepts. Automaton has 193644 states and 286602 transitions. Word has length 153 [2022-10-16 13:29:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:29:33,325 INFO L495 AbstractCegarLoop]: Abstraction has 193644 states and 286602 transitions. [2022-10-16 13:29:33,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-10-16 13:29:33,326 INFO L276 IsEmpty]: Start isEmpty. Operand 193644 states and 286602 transitions. [2022-10-16 13:29:33,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-10-16 13:29:33,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:29:33,338 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:29:33,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 13:29:33,339 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [rcu_read_delayErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, rcu_read_delayErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-10-16 13:29:33,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:29:33,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1585664873, now seen corresponding path program 1 times [2022-10-16 13:29:33,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:29:33,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365757677] [2022-10-16 13:29:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:29:33,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:29:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:29:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:29:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:29:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:29:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:29:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:29:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:29:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:29:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:29:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 13:29:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 13:29:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:29:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:29:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-16 13:29:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 13:29:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-16 13:29:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:29:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 13:29:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 13:29:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:29:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-10-16 13:29:34,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:29:34,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365757677] [2022-10-16 13:29:34,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365757677] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:29:34,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:29:34,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:29:34,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372042401] [2022-10-16 13:29:34,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:29:34,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:29:34,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:29:34,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:29:34,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:29:34,559 INFO L87 Difference]: Start difference. First operand 193644 states and 286602 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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)