./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 22:59:52,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 22:59:52,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 22:59:52,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 22:59:52,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 22:59:52,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 22:59:52,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 22:59:52,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 22:59:52,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 22:59:52,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 22:59:52,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 22:59:52,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 22:59:52,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 22:59:52,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 22:59:52,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 22:59:52,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 22:59:52,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 22:59:52,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 22:59:52,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 22:59:52,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 22:59:52,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 22:59:52,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 22:59:52,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 22:59:52,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 22:59:52,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 22:59:52,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 22:59:52,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 22:59:52,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 22:59:52,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 22:59:52,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 22:59:52,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 22:59:52,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 22:59:52,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 22:59:52,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 22:59:52,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 22:59:52,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 22:59:52,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 22:59:52,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 22:59:52,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 22:59:52,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 22:59:52,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 22:59:52,817 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 22:59:52,845 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 22:59:52,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 22:59:52,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 22:59:52,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 22:59:52,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 22:59:52,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 22:59:52,848 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 22:59:52,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 22:59:52,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 22:59:52,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 22:59:52,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 22:59:52,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 22:59:52,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 22:59:52,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 22:59:52,850 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 22:59:52,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 22:59:52,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 22:59:52,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 22:59:52,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 22:59:52,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:59:52,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 22:59:52,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 22:59:52,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 22:59:52,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 22:59:52,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 22:59:52,851 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 22:59:52,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 22:59:52,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 22:59:52,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 22:59:52,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 [2021-11-05 22:59:53,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 22:59:53,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 22:59:53,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 22:59:53,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 22:59:53,120 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 22:59:53,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-05 22:59:53,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75353f140/954b1ad6c86346d79a26e6f15788ad51/FLAG67153beb4 [2021-11-05 22:59:53,909 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 22:59:53,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-05 22:59:53,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75353f140/954b1ad6c86346d79a26e6f15788ad51/FLAG67153beb4 [2021-11-05 22:59:54,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75353f140/954b1ad6c86346d79a26e6f15788ad51 [2021-11-05 22:59:54,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 22:59:54,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 22:59:54,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 22:59:54,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 22:59:54,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 22:59:54,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:59:54" (1/1) ... [2021-11-05 22:59:54,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7912ff43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:54, skipping insertion in model container [2021-11-05 22:59:54,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:59:54" (1/1) ... [2021-11-05 22:59:54,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 22:59:54,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 22:59:58,261 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-05 22:59:58,263 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-05 22:59:58,264 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-05 22:59:58,264 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-05 22:59:58,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:59:58,312 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 22:59:58,722 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-05 22:59:58,723 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-05 22:59:58,723 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-05 22:59:58,723 WARN L228 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-05 22:59:58,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:59:59,056 INFO L208 MainTranslator]: Completed translation [2021-11-05 22:59:59,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59 WrapperNode [2021-11-05 22:59:59,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 22:59:59,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 22:59:59,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 22:59:59,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 22:59:59,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 22:59:59,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 23:00:01,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 23:00:01,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 23:00:01,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 23:00:01,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 23:00:01,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 23:00:01,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 23:00:02,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 23:00:02,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 23:00:03,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 23:00:03,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 23:00:03,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 23:00:04,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 23:00:04,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 23:00:04,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 23:00:04,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 23:00:04,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (1/1) ... [2021-11-05 23:00:04,256 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 23:00:04,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 23:00:04,273 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) [2021-11-05 23:00:04,281 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 [2021-11-05 23:00:04,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_121 [2021-11-05 23:00:04,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_121 [2021-11-05 23:00:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-11-05 23:00:04,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-11-05 23:00:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_147 [2021-11-05 23:00:04,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_147 [2021-11-05 23:00:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 23:00:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 23:00:04,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 23:00:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 23:00:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-11-05 23:00:04,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-11-05 23:00:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 23:00:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-05 23:00:04,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-05 23:00:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 23:00:04,301 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 23:00:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure cas_link_timer [2021-11-05 23:00:04,302 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_link_timer [2021-11-05 23:00:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-05 23:00:04,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-05 23:00:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 23:00:04,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 23:00:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 23:00:04,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 23:00:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 23:00:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 23:00:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2021-11-05 23:00:04,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2021-11-05 23:00:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 23:00:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-05 23:00:04,303 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-05 23:00:04,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 23:00:04,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 23:05:30,167 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0; [2021-11-05 23:05:30,168 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 23:05:30,170 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L14685: #t~ret2304 := main_#res; [2021-11-05 23:05:30,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-05 23:05:30,250 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 23:05:30,251 INFO L299 CfgBuilder]: Removed 27494 assume(true) statements. [2021-11-05 23:05:30,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:05:30 BoogieIcfgContainer [2021-11-05 23:05:30,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 23:05:30,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 23:05:30,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 23:05:30,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 23:05:30,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:59:54" (1/3) ... [2021-11-05 23:05:30,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690ffe15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:05:30, skipping insertion in model container [2021-11-05 23:05:30,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:59:59" (2/3) ... [2021-11-05 23:05:30,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690ffe15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 11:05:30, skipping insertion in model container [2021-11-05 23:05:30,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 11:05:30" (3/3) ... [2021-11-05 23:05:30,275 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-05 23:05:30,279 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 23:05:30,280 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 718 error locations. [2021-11-05 23:05:30,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 23:05:30,386 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 23:05:30,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 718 error locations. [2021-11-05 23:05:30,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 24991 states, 24222 states have (on average 1.3423747006853275) internal successors, (32515), 24939 states have internal predecessors, (32515), 42 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-05 23:05:30,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-05 23:05:30,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 23:05:30,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 23:05:30,645 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr658ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-05 23:05:30,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 23:05:30,649 INFO L85 PathProgramCache]: Analyzing trace with hash -531829004, now seen corresponding path program 1 times [2021-11-05 23:05:30,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 23:05:30,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864260056] [2021-11-05 23:05:30,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 23:05:30,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 23:05:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 23:05:31,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 23:05:31,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 23:05:31,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864260056] [2021-11-05 23:05:31,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864260056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 23:05:31,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 23:05:31,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 23:05:31,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322865961] [2021-11-05 23:05:31,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 23:05:31,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 23:05:31,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 23:05:31,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 23:05:31,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 23:05:31,467 INFO L87 Difference]: Start difference. First operand has 24991 states, 24222 states have (on average 1.3423747006853275) internal successors, (32515), 24939 states have internal predecessors, (32515), 42 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 23:05:33,532 INFO L93 Difference]: Finished difference Result 61576 states and 80366 transitions. [2021-11-05 23:05:33,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 23:05:33,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-05 23:05:33,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 23:05:33,664 INFO L225 Difference]: With dead ends: 61576 [2021-11-05 23:05:33,665 INFO L226 Difference]: Without dead ends: 35358 [2021-11-05 23:05:33,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.55ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 23:05:33,740 INFO L933 BasicCegarLoop]: 31145 mSDtfsCounter, 29871 mSDsluCounter, 46960 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 689.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29871 SdHoareTripleChecker+Valid, 78105 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 127.28ms SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 840.35ms IncrementalHoareTripleChecker+Time [2021-11-05 23:05:33,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29871 Valid, 78105 Invalid, 836 Unknown, 0 Unchecked, 127.28ms Time], IncrementalHoareTripleChecker [146 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 840.35ms Time] [2021-11-05 23:05:33,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35358 states. [2021-11-05 23:05:34,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35358 to 30423. [2021-11-05 23:05:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30423 states, 29621 states have (on average 1.2745011984740555) internal successors, (37752), 30320 states have internal predecessors, (37752), 66 states have call successors, (66), 18 states have call predecessors, (66), 18 states have return successors, (132), 84 states have call predecessors, (132), 66 states have call successors, (132) [2021-11-05 23:05:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30423 states to 30423 states and 37950 transitions. [2021-11-05 23:05:34,729 INFO L78 Accepts]: Start accepts. Automaton has 30423 states and 37950 transitions. Word has length 24 [2021-11-05 23:05:34,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 23:05:34,729 INFO L470 AbstractCegarLoop]: Abstraction has 30423 states and 37950 transitions. [2021-11-05 23:05:34,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:34,730 INFO L276 IsEmpty]: Start isEmpty. Operand 30423 states and 37950 transitions. [2021-11-05 23:05:34,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-05 23:05:34,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 23:05:34,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 23:05:34,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 23:05:34,731 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr659ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-05 23:05:34,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 23:05:34,732 INFO L85 PathProgramCache]: Analyzing trace with hash 15956375, now seen corresponding path program 1 times [2021-11-05 23:05:34,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 23:05:34,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576857078] [2021-11-05 23:05:34,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 23:05:34,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 23:05:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 23:05:35,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 23:05:35,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 23:05:35,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576857078] [2021-11-05 23:05:35,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576857078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 23:05:35,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 23:05:35,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 23:05:35,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766697662] [2021-11-05 23:05:35,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 23:05:35,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 23:05:35,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 23:05:35,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 23:05:35,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 23:05:35,055 INFO L87 Difference]: Start difference. First operand 30423 states and 37950 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:35,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 23:05:35,689 INFO L93 Difference]: Finished difference Result 30423 states and 37950 transitions. [2021-11-05 23:05:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 23:05:35,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-05 23:05:35,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 23:05:35,754 INFO L225 Difference]: With dead ends: 30423 [2021-11-05 23:05:35,754 INFO L226 Difference]: Without dead ends: 30419 [2021-11-05 23:05:35,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 23:05:35,771 INFO L933 BasicCegarLoop]: 29172 mSDtfsCounter, 29153 mSDsluCounter, 29066 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29153 SdHoareTripleChecker+Valid, 58238 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.86ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.07ms IncrementalHoareTripleChecker+Time [2021-11-05 23:05:35,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29153 Valid, 58238 Invalid, 114 Unknown, 0 Unchecked, 52.86ms Time], IncrementalHoareTripleChecker [38 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 84.07ms Time] [2021-11-05 23:05:35,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30419 states. [2021-11-05 23:05:36,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30419 to 30419. [2021-11-05 23:05:36,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30419 states, 29619 states have (on average 1.2744522097302406) internal successors, (37748), 30316 states have internal predecessors, (37748), 66 states have call successors, (66), 18 states have call predecessors, (66), 18 states have return successors, (132), 84 states have call predecessors, (132), 66 states have call successors, (132) [2021-11-05 23:05:36,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30419 states to 30419 states and 37946 transitions. [2021-11-05 23:05:36,444 INFO L78 Accepts]: Start accepts. Automaton has 30419 states and 37946 transitions. Word has length 26 [2021-11-05 23:05:36,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 23:05:36,445 INFO L470 AbstractCegarLoop]: Abstraction has 30419 states and 37946 transitions. [2021-11-05 23:05:36,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:36,445 INFO L276 IsEmpty]: Start isEmpty. Operand 30419 states and 37946 transitions. [2021-11-05 23:05:36,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-05 23:05:36,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 23:05:36,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 23:05:36,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 23:05:36,446 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr660ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-05 23:05:36,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 23:05:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1843271494, now seen corresponding path program 1 times [2021-11-05 23:05:36,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 23:05:36,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346085236] [2021-11-05 23:05:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 23:05:36,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 23:05:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 23:05:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 23:05:36,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 23:05:36,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346085236] [2021-11-05 23:05:36,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346085236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 23:05:36,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 23:05:36,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 23:05:36,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124916902] [2021-11-05 23:05:36,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 23:05:36,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 23:05:36,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 23:05:36,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 23:05:36,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 23:05:36,899 INFO L87 Difference]: Start difference. First operand 30419 states and 37946 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:37,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 23:05:37,558 INFO L93 Difference]: Finished difference Result 30419 states and 37946 transitions. [2021-11-05 23:05:37,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 23:05:37,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-05 23:05:37,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 23:05:37,617 INFO L225 Difference]: With dead ends: 30419 [2021-11-05 23:05:37,617 INFO L226 Difference]: Without dead ends: 30415 [2021-11-05 23:05:37,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.76ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 23:05:37,628 INFO L933 BasicCegarLoop]: 29168 mSDtfsCounter, 29147 mSDsluCounter, 29064 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29147 SdHoareTripleChecker+Valid, 58232 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.26ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.94ms IncrementalHoareTripleChecker+Time [2021-11-05 23:05:37,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29147 Valid, 58232 Invalid, 112 Unknown, 0 Unchecked, 47.26ms Time], IncrementalHoareTripleChecker [38 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 86.94ms Time] [2021-11-05 23:05:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30415 states. [2021-11-05 23:05:38,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30415 to 30415. [2021-11-05 23:05:38,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30415 states, 29617 states have (on average 1.2744032143701252) internal successors, (37744), 30312 states have internal predecessors, (37744), 66 states have call successors, (66), 18 states have call predecessors, (66), 18 states have return successors, (132), 84 states have call predecessors, (132), 66 states have call successors, (132) [2021-11-05 23:05:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30415 states to 30415 states and 37942 transitions. [2021-11-05 23:05:38,278 INFO L78 Accepts]: Start accepts. Automaton has 30415 states and 37942 transitions. Word has length 28 [2021-11-05 23:05:38,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 23:05:38,278 INFO L470 AbstractCegarLoop]: Abstraction has 30415 states and 37942 transitions. [2021-11-05 23:05:38,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:38,278 INFO L276 IsEmpty]: Start isEmpty. Operand 30415 states and 37942 transitions. [2021-11-05 23:05:38,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-05 23:05:38,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 23:05:38,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 23:05:38,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 23:05:38,281 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr661ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-05 23:05:38,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 23:05:38,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1854858147, now seen corresponding path program 1 times [2021-11-05 23:05:38,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 23:05:38,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283708472] [2021-11-05 23:05:38,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 23:05:38,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 23:05:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 23:05:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 23:05:38,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 23:05:38,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283708472] [2021-11-05 23:05:38,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283708472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 23:05:38,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 23:05:38,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 23:05:38,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240257310] [2021-11-05 23:05:38,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 23:05:38,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 23:05:38,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 23:05:38,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 23:05:38,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 23:05:38,611 INFO L87 Difference]: Start difference. First operand 30415 states and 37942 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:39,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 23:05:39,206 INFO L93 Difference]: Finished difference Result 30415 states and 37942 transitions. [2021-11-05 23:05:39,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 23:05:39,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-05 23:05:39,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 23:05:39,270 INFO L225 Difference]: With dead ends: 30415 [2021-11-05 23:05:39,271 INFO L226 Difference]: Without dead ends: 30411 [2021-11-05 23:05:39,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.68ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 23:05:39,289 INFO L933 BasicCegarLoop]: 29164 mSDtfsCounter, 29141 mSDsluCounter, 29062 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29141 SdHoareTripleChecker+Valid, 58226 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.61ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.45ms IncrementalHoareTripleChecker+Time [2021-11-05 23:05:39,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29141 Valid, 58226 Invalid, 110 Unknown, 0 Unchecked, 42.61ms Time], IncrementalHoareTripleChecker [38 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 77.45ms Time] [2021-11-05 23:05:39,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30411 states. [2021-11-05 23:05:39,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30411 to 30411. [2021-11-05 23:05:39,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30411 states, 29615 states have (on average 1.2743542123923688) internal successors, (37740), 30308 states have internal predecessors, (37740), 66 states have call successors, (66), 18 states have call predecessors, (66), 18 states have return successors, (132), 84 states have call predecessors, (132), 66 states have call successors, (132) [2021-11-05 23:05:40,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30411 states to 30411 states and 37938 transitions. [2021-11-05 23:05:40,050 INFO L78 Accepts]: Start accepts. Automaton has 30411 states and 37938 transitions. Word has length 30 [2021-11-05 23:05:40,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 23:05:40,050 INFO L470 AbstractCegarLoop]: Abstraction has 30411 states and 37938 transitions. [2021-11-05 23:05:40,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:40,051 INFO L276 IsEmpty]: Start isEmpty. Operand 30411 states and 37938 transitions. [2021-11-05 23:05:40,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-05 23:05:40,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 23:05:40,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 23:05:40,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 23:05:40,052 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr662ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-05 23:05:40,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 23:05:40,052 INFO L85 PathProgramCache]: Analyzing trace with hash -104729472, now seen corresponding path program 1 times [2021-11-05 23:05:40,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 23:05:40,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092756954] [2021-11-05 23:05:40,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 23:05:40,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 23:05:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 23:05:40,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 23:05:40,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 23:05:40,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092756954] [2021-11-05 23:05:40,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092756954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 23:05:40,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 23:05:40,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 23:05:40,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679800747] [2021-11-05 23:05:40,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 23:05:40,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 23:05:40,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 23:05:40,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 23:05:40,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 23:05:40,317 INFO L87 Difference]: Start difference. First operand 30411 states and 37938 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:40,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 23:05:40,971 INFO L93 Difference]: Finished difference Result 30411 states and 37938 transitions. [2021-11-05 23:05:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 23:05:40,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-05 23:05:40,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 23:05:41,027 INFO L225 Difference]: With dead ends: 30411 [2021-11-05 23:05:41,027 INFO L226 Difference]: Without dead ends: 30407 [2021-11-05 23:05:41,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.12ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 23:05:41,041 INFO L933 BasicCegarLoop]: 29160 mSDtfsCounter, 29135 mSDsluCounter, 29060 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29135 SdHoareTripleChecker+Valid, 58220 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.82ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.36ms IncrementalHoareTripleChecker+Time [2021-11-05 23:05:41,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29135 Valid, 58220 Invalid, 108 Unknown, 0 Unchecked, 44.82ms Time], IncrementalHoareTripleChecker [38 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 74.36ms Time] [2021-11-05 23:05:41,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30407 states. [2021-11-05 23:05:41,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30407 to 30407. [2021-11-05 23:05:41,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30407 states, 29613 states have (on average 1.2743052037956304) internal successors, (37736), 30304 states have internal predecessors, (37736), 66 states have call successors, (66), 18 states have call predecessors, (66), 18 states have return successors, (132), 84 states have call predecessors, (132), 66 states have call successors, (132) [2021-11-05 23:05:41,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30407 states to 30407 states and 37934 transitions. [2021-11-05 23:05:41,763 INFO L78 Accepts]: Start accepts. Automaton has 30407 states and 37934 transitions. Word has length 32 [2021-11-05 23:05:41,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 23:05:41,763 INFO L470 AbstractCegarLoop]: Abstraction has 30407 states and 37934 transitions. [2021-11-05 23:05:41,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:41,763 INFO L276 IsEmpty]: Start isEmpty. Operand 30407 states and 37934 transitions. [2021-11-05 23:05:41,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-05 23:05:41,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 23:05:41,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 23:05:41,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 23:05:41,765 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr663ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-05 23:05:41,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 23:05:41,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1858252509, now seen corresponding path program 1 times [2021-11-05 23:05:41,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 23:05:41,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693564583] [2021-11-05 23:05:41,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 23:05:41,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 23:05:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 23:05:42,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 23:05:42,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 23:05:42,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693564583] [2021-11-05 23:05:42,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693564583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 23:05:42,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 23:05:42,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 23:05:42,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291045631] [2021-11-05 23:05:42,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 23:05:42,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 23:05:42,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 23:05:42,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 23:05:42,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 23:05:42,025 INFO L87 Difference]: Start difference. First operand 30407 states and 37934 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 23:05:42,702 INFO L93 Difference]: Finished difference Result 30407 states and 37934 transitions. [2021-11-05 23:05:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 23:05:42,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-05 23:05:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 23:05:42,764 INFO L225 Difference]: With dead ends: 30407 [2021-11-05 23:05:42,764 INFO L226 Difference]: Without dead ends: 30403 [2021-11-05 23:05:42,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.04ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 23:05:42,782 INFO L933 BasicCegarLoop]: 29156 mSDtfsCounter, 29129 mSDsluCounter, 29058 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29129 SdHoareTripleChecker+Valid, 58214 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.31ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.04ms IncrementalHoareTripleChecker+Time [2021-11-05 23:05:42,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29129 Valid, 58214 Invalid, 106 Unknown, 0 Unchecked, 42.31ms Time], IncrementalHoareTripleChecker [38 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 79.04ms Time] [2021-11-05 23:05:42,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30403 states. [2021-11-05 23:05:43,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30403 to 30403. [2021-11-05 23:05:43,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30403 states, 29611 states have (on average 1.2742561885785688) internal successors, (37732), 30300 states have internal predecessors, (37732), 66 states have call successors, (66), 18 states have call predecessors, (66), 18 states have return successors, (132), 84 states have call predecessors, (132), 66 states have call successors, (132) [2021-11-05 23:05:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30403 states to 30403 states and 37930 transitions. [2021-11-05 23:05:43,568 INFO L78 Accepts]: Start accepts. Automaton has 30403 states and 37930 transitions. Word has length 34 [2021-11-05 23:05:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 23:05:43,568 INFO L470 AbstractCegarLoop]: Abstraction has 30403 states and 37930 transitions. [2021-11-05 23:05:43,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:43,568 INFO L276 IsEmpty]: Start isEmpty. Operand 30403 states and 37930 transitions. [2021-11-05 23:05:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-05 23:05:43,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 23:05:43,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 23:05:43,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 23:05:43,569 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr664ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-05 23:05:43,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 23:05:43,570 INFO L85 PathProgramCache]: Analyzing trace with hash 928256582, now seen corresponding path program 1 times [2021-11-05 23:05:43,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 23:05:43,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948955927] [2021-11-05 23:05:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 23:05:43,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 23:05:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 23:05:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 23:05:43,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 23:05:43,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948955927] [2021-11-05 23:05:43,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948955927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 23:05:43,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 23:05:43,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 23:05:43,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87870394] [2021-11-05 23:05:43,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 23:05:43,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 23:05:43,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 23:05:43,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 23:05:43,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 23:05:43,963 INFO L87 Difference]: Start difference. First operand 30403 states and 37930 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:44,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 23:05:44,797 INFO L93 Difference]: Finished difference Result 30403 states and 37930 transitions. [2021-11-05 23:05:44,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 23:05:44,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-05 23:05:44,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 23:05:44,846 INFO L225 Difference]: With dead ends: 30403 [2021-11-05 23:05:44,846 INFO L226 Difference]: Without dead ends: 30399 [2021-11-05 23:05:44,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.61ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 23:05:44,861 INFO L933 BasicCegarLoop]: 29152 mSDtfsCounter, 29123 mSDsluCounter, 29056 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29123 SdHoareTripleChecker+Valid, 58208 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.17ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.04ms IncrementalHoareTripleChecker+Time [2021-11-05 23:05:44,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29123 Valid, 58208 Invalid, 104 Unknown, 0 Unchecked, 47.17ms Time], IncrementalHoareTripleChecker [38 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 74.04ms Time] [2021-11-05 23:05:44,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30399 states. [2021-11-05 23:05:45,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30399 to 30399. [2021-11-05 23:05:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30399 states, 29609 states have (on average 1.2742071667398427) internal successors, (37728), 30296 states have internal predecessors, (37728), 66 states have call successors, (66), 18 states have call predecessors, (66), 18 states have return successors, (132), 84 states have call predecessors, (132), 66 states have call successors, (132) [2021-11-05 23:05:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30399 states to 30399 states and 37926 transitions. [2021-11-05 23:05:45,635 INFO L78 Accepts]: Start accepts. Automaton has 30399 states and 37926 transitions. Word has length 36 [2021-11-05 23:05:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 23:05:45,635 INFO L470 AbstractCegarLoop]: Abstraction has 30399 states and 37926 transitions. [2021-11-05 23:05:45,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:45,635 INFO L276 IsEmpty]: Start isEmpty. Operand 30399 states and 37926 transitions. [2021-11-05 23:05:45,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-05 23:05:45,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 23:05:45,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 23:05:45,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 23:05:45,636 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr665ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-05 23:05:45,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 23:05:45,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1296099351, now seen corresponding path program 1 times [2021-11-05 23:05:45,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 23:05:45,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66287079] [2021-11-05 23:05:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 23:05:45,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 23:05:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 23:05:45,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 23:05:45,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 23:05:45,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66287079] [2021-11-05 23:05:45,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66287079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 23:05:45,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 23:05:45,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 23:05:45,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324162662] [2021-11-05 23:05:45,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 23:05:45,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 23:05:45,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 23:05:45,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 23:05:45,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 23:05:45,907 INFO L87 Difference]: Start difference. First operand 30399 states and 37926 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 23:05:46,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 23:05:46,905 INFO L93 Difference]: Finished difference Result 33665 states and 42021 transitions. [2021-11-05 23:05:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 23:05:46,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-05 23:05:46,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 23:05:46,960 INFO L225 Difference]: With dead ends: 33665 [2021-11-05 23:05:46,960 INFO L226 Difference]: Without dead ends: 33661 [2021-11-05 23:05:46,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 23:05:46,976 INFO L933 BasicCegarLoop]: 31859 mSDtfsCounter, 7136 mSDsluCounter, 56412 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 238.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7136 SdHoareTripleChecker+Valid, 88271 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.34ms SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 294.05ms IncrementalHoareTripleChecker+Time [2021-11-05 23:05:46,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7136 Valid, 88271 Invalid, 401 Unknown, 0 Unchecked, 39.34ms Time], IncrementalHoareTripleChecker [67 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 294.05ms Time] [2021-11-05 23:05:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33661 states. [2021-11-05 23:05:47,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33661 to 32037.