./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.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_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.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 bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 22:25:37,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 22:25:37,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 22:25:37,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 22:25:37,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 22:25:37,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 22:25:37,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 22:25:37,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 22:25:37,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 22:25:37,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 22:25:37,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 22:25:37,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 22:25:37,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 22:25:37,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 22:25:37,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 22:25:37,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 22:25:37,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 22:25:37,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 22:25:37,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 22:25:37,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 22:25:37,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 22:25:37,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 22:25:37,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 22:25:37,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 22:25:37,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 22:25:37,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 22:25:37,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 22:25:37,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 22:25:37,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 22:25:37,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 22:25:37,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 22:25:37,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 22:25:37,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 22:25:37,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 22:25:37,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 22:25:37,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 22:25:37,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 22:25:37,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 22:25:37,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 22:25:37,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 22:25:37,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 22:25:37,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 22:25:37,276 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 22:25:37,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 22:25:37,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 22:25:37,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 22:25:37,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 22:25:37,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 22:25:37,280 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 22:25:37,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 22:25:37,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 22:25:37,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 22:25:37,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 22:25:37,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 22:25:37,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 22:25:37,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 22:25:37,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 22:25:37,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 22:25:37,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 22:25:37,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 22:25:37,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 22:25:37,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:25:37,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 22:25:37,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 22:25:37,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 22:25:37,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 22:25:37,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 22:25:37,284 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 22:25:37,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 22:25:37,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 22:25:37,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 22:25:37,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2021-11-05 22:25:37,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 22:25:37,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 22:25:37,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 22:25:37,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 22:25:37,653 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 22:25:37,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-05 22:25:37,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41500d45b/0ab0c9e0b71c419abd567867b00c99fb/FLAGa40eaeea3 [2021-11-05 22:25:38,555 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 22:25:38,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-05 22:25:38,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41500d45b/0ab0c9e0b71c419abd567867b00c99fb/FLAGa40eaeea3 [2021-11-05 22:25:38,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41500d45b/0ab0c9e0b71c419abd567867b00c99fb [2021-11-05 22:25:38,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 22:25:38,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 22:25:38,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 22:25:38,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 22:25:38,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 22:25:38,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:25:38" (1/1) ... [2021-11-05 22:25:38,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@483ec748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:38, skipping insertion in model container [2021-11-05 22:25:38,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:25:38" (1/1) ... [2021-11-05 22:25:38,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 22:25:38,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 22:25:42,579 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_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-05 22:25:42,582 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_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-05 22:25:42,583 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_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-05 22:25:42,583 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_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-05 22:25:42,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:25:42,686 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 22:25:43,302 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_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-05 22:25:43,304 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_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-05 22:25:43,304 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_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-05 22:25:43,304 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_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-05 22:25:43,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:25:43,516 INFO L208 MainTranslator]: Completed translation [2021-11-05 22:25:43,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43 WrapperNode [2021-11-05 22:25:43,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 22:25:43,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 22:25:43,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 22:25:43,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 22:25:43,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:43,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:44,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 22:25:44,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 22:25:44,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 22:25:44,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 22:25:44,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:44,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:44,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:44,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:45,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:45,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:45,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:45,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 22:25:45,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 22:25:45,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 22:25:45,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 22:25:45,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (1/1) ... [2021-11-05 22:25:45,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:25:45,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 22:25:45,632 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 22:25:45,658 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 22:25:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-05 22:25:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-05 22:25:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 22:25:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-05 22:25:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 22:25:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 22:25:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-05 22:25:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-05 22:25:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 22:25:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 22:25:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-05 22:25:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-05 22:25:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 22:25:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 22:25:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 22:25:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 22:25:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 22:25:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 22:25:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 22:25:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 22:25:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 22:26:19,239 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-05 22:26:19,239 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 22:26:19,239 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 22:26:19,240 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 22:26:19,240 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 22:26:19,240 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 22:26:19,240 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 22:26:19,241 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-05 22:26:19,241 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 22:26:19,241 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 22:26:19,242 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 22:26:19,242 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 22:26:20,745 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 22:26:20,745 INFO L299 CfgBuilder]: Removed 5371 assume(true) statements. [2021-11-05 22:26:20,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:26:20 BoogieIcfgContainer [2021-11-05 22:26:20,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 22:26:20,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 22:26:20,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 22:26:20,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 22:26:20,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:25:38" (1/3) ... [2021-11-05 22:26:20,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@911c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:26:20, skipping insertion in model container [2021-11-05 22:26:20,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:25:43" (2/3) ... [2021-11-05 22:26:20,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@911c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:26:20, skipping insertion in model container [2021-11-05 22:26:20,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:26:20" (3/3) ... [2021-11-05 22:26:20,760 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-05 22:26:20,767 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 22:26:20,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-11-05 22:26:20,832 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 22:26:20,840 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 22:26:20,840 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-11-05 22:26:20,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 5496 states, 5423 states have (on average 1.3155080213903743) internal successors, (7134), 5476 states have internal predecessors, (7134), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-05 22:26:20,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-05 22:26:20,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:26:20,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:20,946 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-05 22:26:20,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:26:20,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1185104780, now seen corresponding path program 1 times [2021-11-05 22:26:20,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:26:20,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582946188] [2021-11-05 22:26:20,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:26:20,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:26:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:26:22,002 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 22:26:22,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:26:22,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582946188] [2021-11-05 22:26:22,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582946188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:26:22,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:26:22,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:26:22,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800439114] [2021-11-05 22:26:22,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:26:22,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:26:22,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:26:22,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:26:22,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:22,054 INFO L87 Difference]: Start difference. First operand has 5496 states, 5423 states have (on average 1.3155080213903743) internal successors, (7134), 5476 states have internal predecessors, (7134), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 22:26:24,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:26:24,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:26:24,819 INFO L93 Difference]: Finished difference Result 15264 states and 19948 transitions. [2021-11-05 22:26:24,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:26:24,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 165 [2021-11-05 22:26:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:26:24,888 INFO L225 Difference]: With dead ends: 15264 [2021-11-05 22:26:24,889 INFO L226 Difference]: Without dead ends: 9450 [2021-11-05 22:26:24,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:24,929 INFO L933 BasicCegarLoop]: 7066 mSDtfsCounter, 6183 mSDsluCounter, 6995 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2194.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6183 SdHoareTripleChecker+Valid, 14061 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.20ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2361.43ms IncrementalHoareTripleChecker+Time [2021-11-05 22:26:24,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6183 Valid, 14061 Invalid, 54 Unknown, 0 Unchecked, 38.20ms Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 2361.43ms Time] [2021-11-05 22:26:24,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9450 states. [2021-11-05 22:26:25,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9450 to 9414. [2021-11-05 22:26:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9414 states, 9322 states have (on average 1.2396481441750697) internal successors, (11556), 9375 states have internal predecessors, (11556), 30 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-11-05 22:26:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9414 states to 9414 states and 11616 transitions. [2021-11-05 22:26:25,266 INFO L78 Accepts]: Start accepts. Automaton has 9414 states and 11616 transitions. Word has length 165 [2021-11-05 22:26:25,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:26:25,268 INFO L470 AbstractCegarLoop]: Abstraction has 9414 states and 11616 transitions. [2021-11-05 22:26:25,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 22:26:25,270 INFO L276 IsEmpty]: Start isEmpty. Operand 9414 states and 11616 transitions. [2021-11-05 22:26:25,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-05 22:26:25,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:26:25,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:25,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 22:26:25,282 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-05 22:26:25,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:26:25,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1198814604, now seen corresponding path program 1 times [2021-11-05 22:26:25,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:26:25,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252154017] [2021-11-05 22:26:25,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:26:25,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:26:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:26:25,795 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 22:26:25,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:26:25,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252154017] [2021-11-05 22:26:25,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252154017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:26:25,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:26:25,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:26:25,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531436758] [2021-11-05 22:26:25,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:26:25,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:26:25,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:26:25,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:26:25,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:25,799 INFO L87 Difference]: Start difference. First operand 9414 states and 11616 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 22:26:27,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:26:28,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:26:28,667 INFO L93 Difference]: Finished difference Result 27090 states and 33566 transitions. [2021-11-05 22:26:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:26:28,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 173 [2021-11-05 22:26:28,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:26:28,770 INFO L225 Difference]: With dead ends: 27090 [2021-11-05 22:26:28,770 INFO L226 Difference]: Without dead ends: 18072 [2021-11-05 22:26:28,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:28,813 INFO L933 BasicCegarLoop]: 6147 mSDtfsCounter, 5486 mSDsluCounter, 6108 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2208.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5486 SdHoareTripleChecker+Valid, 12255 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.74ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2443.93ms IncrementalHoareTripleChecker+Time [2021-11-05 22:26:28,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5486 Valid, 12255 Invalid, 66 Unknown, 0 Unchecked, 28.74ms Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 1 Unknown, 0 Unchecked, 2443.93ms Time] [2021-11-05 22:26:28,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18072 states. [2021-11-05 22:26:29,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18072 to 17750. [2021-11-05 22:26:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17750 states, 17620 states have (on average 1.2461975028376844) internal successors, (21958), 17673 states have internal predecessors, (21958), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (70), 60 states have call predecessors, (70), 60 states have call successors, (70) [2021-11-05 22:26:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17750 states to 17750 states and 22088 transitions. [2021-11-05 22:26:29,376 INFO L78 Accepts]: Start accepts. Automaton has 17750 states and 22088 transitions. Word has length 173 [2021-11-05 22:26:29,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:26:29,378 INFO L470 AbstractCegarLoop]: Abstraction has 17750 states and 22088 transitions. [2021-11-05 22:26:29,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 22:26:29,380 INFO L276 IsEmpty]: Start isEmpty. Operand 17750 states and 22088 transitions. [2021-11-05 22:26:29,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-05 22:26:29,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:26:29,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:29,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 22:26:29,384 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-05 22:26:29,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:26:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2033153188, now seen corresponding path program 1 times [2021-11-05 22:26:29,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:26:29,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109999987] [2021-11-05 22:26:29,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:26:29,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:26:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:26:29,823 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 22:26:29,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:26:29,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109999987] [2021-11-05 22:26:29,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109999987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:26:29,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:26:29,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:26:29,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452252019] [2021-11-05 22:26:29,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:26:29,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:26:29,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:26:29,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:26:29,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:29,828 INFO L87 Difference]: Start difference. First operand 17750 states and 22088 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 22:26:31,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:26:33,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:26:33,077 INFO L93 Difference]: Finished difference Result 41000 states and 51267 transitions. [2021-11-05 22:26:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:26:33,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 175 [2021-11-05 22:26:33,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:26:33,190 INFO L225 Difference]: With dead ends: 41000 [2021-11-05 22:26:33,190 INFO L226 Difference]: Without dead ends: 23646 [2021-11-05 22:26:33,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:33,249 INFO L933 BasicCegarLoop]: 6602 mSDtfsCounter, 4813 mSDsluCounter, 5997 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2215.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4813 SdHoareTripleChecker+Valid, 12599 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.33ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2412.76ms IncrementalHoareTripleChecker+Time [2021-11-05 22:26:33,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4813 Valid, 12599 Invalid, 100 Unknown, 0 Unchecked, 21.33ms Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2412.76ms Time] [2021-11-05 22:26:33,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23646 states. [2021-11-05 22:26:33,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23646 to 23548. [2021-11-05 22:26:33,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23548 states, 23384 states have (on average 1.2526513855627779) internal successors, (29292), 23437 states have internal predecessors, (29292), 86 states have call successors, (86), 24 states have call predecessors, (86), 24 states have return successors, (99), 86 states have call predecessors, (99), 86 states have call successors, (99) [2021-11-05 22:26:33,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23548 states to 23548 states and 29477 transitions. [2021-11-05 22:26:33,893 INFO L78 Accepts]: Start accepts. Automaton has 23548 states and 29477 transitions. Word has length 175 [2021-11-05 22:26:33,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:26:33,893 INFO L470 AbstractCegarLoop]: Abstraction has 23548 states and 29477 transitions. [2021-11-05 22:26:33,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 22:26:33,894 INFO L276 IsEmpty]: Start isEmpty. Operand 23548 states and 29477 transitions. [2021-11-05 22:26:33,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-05 22:26:33,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:26:33,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:33,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 22:26:33,899 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-05 22:26:33,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:26:33,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1868980924, now seen corresponding path program 1 times [2021-11-05 22:26:33,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:26:33,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252679093] [2021-11-05 22:26:33,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:26:33,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:26:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:26:34,322 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 22:26:34,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:26:34,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252679093] [2021-11-05 22:26:34,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252679093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:26:34,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:26:34,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:26:34,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263605832] [2021-11-05 22:26:34,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:26:34,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:26:34,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:26:34,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:26:34,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:34,326 INFO L87 Difference]: Start difference. First operand 23548 states and 29477 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 22:26:36,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:26:37,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:26:37,479 INFO L93 Difference]: Finished difference Result 68517 states and 86076 transitions. [2021-11-05 22:26:37,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:26:37,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 178 [2021-11-05 22:26:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:26:37,673 INFO L225 Difference]: With dead ends: 68517 [2021-11-05 22:26:37,674 INFO L226 Difference]: Without dead ends: 45365 [2021-11-05 22:26:37,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:37,763 INFO L933 BasicCegarLoop]: 6166 mSDtfsCounter, 5446 mSDsluCounter, 6065 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2177.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5446 SdHoareTripleChecker+Valid, 12231 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.31ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2344.47ms IncrementalHoareTripleChecker+Time [2021-11-05 22:26:37,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5446 Valid, 12231 Invalid, 46 Unknown, 0 Unchecked, 17.31ms Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2344.47ms Time] [2021-11-05 22:26:37,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45365 states. [2021-11-05 22:26:38,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45365 to 44865. [2021-11-05 22:26:38,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44865 states, 44591 states have (on average 1.255387858536476) internal successors, (55979), 44644 states have internal predecessors, (55979), 172 states have call successors, (172), 48 states have call predecessors, (172), 48 states have return successors, (318), 172 states have call predecessors, (318), 172 states have call successors, (318) [2021-11-05 22:26:39,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44865 states to 44865 states and 56469 transitions. [2021-11-05 22:26:39,008 INFO L78 Accepts]: Start accepts. Automaton has 44865 states and 56469 transitions. Word has length 178 [2021-11-05 22:26:39,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:26:39,009 INFO L470 AbstractCegarLoop]: Abstraction has 44865 states and 56469 transitions. [2021-11-05 22:26:39,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 22:26:39,009 INFO L276 IsEmpty]: Start isEmpty. Operand 44865 states and 56469 transitions. [2021-11-05 22:26:39,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-05 22:26:39,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:26:39,018 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:39,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 22:26:39,019 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-05 22:26:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:26:39,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1566196920, now seen corresponding path program 1 times [2021-11-05 22:26:39,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:26:39,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120615562] [2021-11-05 22:26:39,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:26:39,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:26:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:26:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:26:39,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:26:39,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120615562] [2021-11-05 22:26:39,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120615562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:26:39,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:26:39,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:26:39,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076304561] [2021-11-05 22:26:39,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:26:39,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:26:39,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:26:39,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:26:39,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:39,396 INFO L87 Difference]: Start difference. First operand 44865 states and 56469 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 22:26:41,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:26:43,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:26:43,119 INFO L93 Difference]: Finished difference Result 105695 states and 133088 transitions. [2021-11-05 22:26:43,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:26:43,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 198 [2021-11-05 22:26:43,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:26:43,417 INFO L225 Difference]: With dead ends: 105695 [2021-11-05 22:26:43,418 INFO L226 Difference]: Without dead ends: 74975 [2021-11-05 22:26:43,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:43,562 INFO L933 BasicCegarLoop]: 10288 mSDtfsCounter, 5525 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2149.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5525 SdHoareTripleChecker+Valid, 16358 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.86ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2327.42ms IncrementalHoareTripleChecker+Time [2021-11-05 22:26:43,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5525 Valid, 16358 Invalid, 52 Unknown, 0 Unchecked, 13.86ms Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 2327.42ms Time] [2021-11-05 22:26:43,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74975 states. [2021-11-05 22:26:45,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74975 to 74862. [2021-11-05 22:26:45,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74862 states, 74440 states have (on average 1.2555615260612574) internal successors, (93464), 74493 states have internal predecessors, (93464), 288 states have call successors, (288), 80 states have call predecessors, (288), 80 states have return successors, (532), 288 states have call predecessors, (532), 288 states have call successors, (532) [2021-11-05 22:26:45,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74862 states to 74862 states and 94284 transitions. [2021-11-05 22:26:45,934 INFO L78 Accepts]: Start accepts. Automaton has 74862 states and 94284 transitions. Word has length 198 [2021-11-05 22:26:45,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:26:45,935 INFO L470 AbstractCegarLoop]: Abstraction has 74862 states and 94284 transitions. [2021-11-05 22:26:45,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 22:26:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 74862 states and 94284 transitions. [2021-11-05 22:26:45,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-05 22:26:45,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:26:45,943 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:45,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 22:26:45,943 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-05 22:26:45,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:26:45,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1448906698, now seen corresponding path program 1 times [2021-11-05 22:26:45,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:26:45,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106830515] [2021-11-05 22:26:45,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:26:45,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:26:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:26:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:26:46,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:26:46,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106830515] [2021-11-05 22:26:46,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106830515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:26:46,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:26:46,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:26:46,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918962432] [2021-11-05 22:26:46,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:26:46,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:26:46,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:26:46,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:26:46,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:46,658 INFO L87 Difference]: Start difference. First operand 74862 states and 94284 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 22:26:48,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:26:50,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:26:50,618 INFO L93 Difference]: Finished difference Result 165681 states and 208702 transitions. [2021-11-05 22:26:50,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:26:50,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 198 [2021-11-05 22:26:50,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:26:51,199 INFO L225 Difference]: With dead ends: 165681 [2021-11-05 22:26:51,199 INFO L226 Difference]: Without dead ends: 104964 [2021-11-05 22:26:51,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.27ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:26:51,357 INFO L933 BasicCegarLoop]: 11622 mSDtfsCounter, 5479 mSDsluCounter, 6115 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2168.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5479 SdHoareTripleChecker+Valid, 17737 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.42ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2346.91ms IncrementalHoareTripleChecker+Time [2021-11-05 22:26:51,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5479 Valid, 17737 Invalid, 50 Unknown, 0 Unchecked, 11.42ms Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 2346.91ms Time] [2021-11-05 22:26:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104964 states. [2021-11-05 22:26:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104964 to 104928. [2021-11-05 22:26:53,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104928 states, 104358 states have (on average 1.2554667586576975) internal successors, (131018), 104411 states have internal predecessors, (131018), 404 states have call successors, (404), 112 states have call predecessors, (404), 112 states have return successors, (746), 404 states have call predecessors, (746), 404 states have call successors, (746) [2021-11-05 22:26:54,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104928 states to 104928 states and 132168 transitions. [2021-11-05 22:26:54,323 INFO L78 Accepts]: Start accepts. Automaton has 104928 states and 132168 transitions. Word has length 198 [2021-11-05 22:26:54,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:26:54,325 INFO L470 AbstractCegarLoop]: Abstraction has 104928 states and 132168 transitions. [2021-11-05 22:26:54,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 22:26:54,325 INFO L276 IsEmpty]: Start isEmpty. Operand 104928 states and 132168 transitions. [2021-11-05 22:26:54,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-05 22:26:54,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:26:54,342 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:26:54,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 22:26:54,343 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-05 22:26:54,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:26:54,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1460364511, now seen corresponding path program 1 times [2021-11-05 22:26:54,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:26:54,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089888410] [2021-11-05 22:26:54,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:26:54,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:26:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:26:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 22:26:55,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:26:55,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089888410] [2021-11-05 22:26:55,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089888410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:26:55,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:26:55,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:26:55,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929324543] [2021-11-05 22:26:55,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:26:55,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:26:55,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:26:55,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:26:55,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:26:55,307 INFO L87 Difference]: Start difference. First operand 104928 states and 132168 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 22:26:57,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:26:57,263 INFO L93 Difference]: Finished difference Result 104928 states and 132168 transitions. [2021-11-05 22:26:57,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:26:57,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 203 [2021-11-05 22:26:57,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:26:57,622 INFO L225 Difference]: With dead ends: 104928 [2021-11-05 22:26:57,623 INFO L226 Difference]: Without dead ends: 104922 [2021-11-05 22:26:57,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.86ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:26:57,681 INFO L933 BasicCegarLoop]: 6141 mSDtfsCounter, 5963 mSDsluCounter, 6045 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5963 SdHoareTripleChecker+Valid, 12186 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.18ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 135.95ms IncrementalHoareTripleChecker+Time [2021-11-05 22:26:57,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5963 Valid, 12186 Invalid, 106 Unknown, 0 Unchecked, 21.18ms Time], IncrementalHoareTripleChecker [34 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 135.95ms Time] [2021-11-05 22:26:57,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104922 states. [2021-11-05 22:26:59,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104922 to 104922. [2021-11-05 22:27:00,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104922 states, 104355 states have (on average 1.2554453547985243) internal successors, (131012), 104405 states have internal predecessors, (131012), 404 states have call successors, (404), 112 states have call predecessors, (404), 112 states have return successors, (746), 404 states have call predecessors, (746), 404 states have call successors, (746) [2021-11-05 22:27:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104922 states to 104922 states and 132162 transitions. [2021-11-05 22:27:00,329 INFO L78 Accepts]: Start accepts. Automaton has 104922 states and 132162 transitions. Word has length 203 [2021-11-05 22:27:00,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:27:00,330 INFO L470 AbstractCegarLoop]: Abstraction has 104922 states and 132162 transitions. [2021-11-05 22:27:00,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 22:27:00,330 INFO L276 IsEmpty]: Start isEmpty. Operand 104922 states and 132162 transitions. [2021-11-05 22:27:00,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-05 22:27:00,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:27:00,342 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:00,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 22:27:00,343 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-05 22:27:00,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:27:00,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1044209252, now seen corresponding path program 1 times [2021-11-05 22:27:00,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:27:00,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632865562] [2021-11-05 22:27:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:27:00,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:27:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:27:01,246 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 22:27:01,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:27:01,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632865562] [2021-11-05 22:27:01,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632865562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:27:01,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:27:01,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:27:01,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917201876] [2021-11-05 22:27:01,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:27:01,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:27:01,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:27:01,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:27:01,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:27:01,250 INFO L87 Difference]: Start difference. First operand 104922 states and 132162 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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 22:27:03,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:27:03,015 INFO L93 Difference]: Finished difference Result 104922 states and 132162 transitions. [2021-11-05 22:27:03,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:27:03,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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 205 [2021-11-05 22:27:03,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:27:03,313 INFO L225 Difference]: With dead ends: 104922 [2021-11-05 22:27:03,313 INFO L226 Difference]: Without dead ends: 104916 [2021-11-05 22:27:03,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.86ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:27:03,371 INFO L933 BasicCegarLoop]: 6135 mSDtfsCounter, 5952 mSDsluCounter, 6042 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5952 SdHoareTripleChecker+Valid, 12177 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.25ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.36ms IncrementalHoareTripleChecker+Time [2021-11-05 22:27:03,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5952 Valid, 12177 Invalid, 106 Unknown, 0 Unchecked, 17.25ms Time], IncrementalHoareTripleChecker [37 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 107.36ms Time] [2021-11-05 22:27:03,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104916 states. [2021-11-05 22:27:05,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104916 to 104916. [2021-11-05 22:27:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104916 states, 104352 states have (on average 1.2554239497086783) internal successors, (131006), 104399 states have internal predecessors, (131006), 404 states have call successors, (404), 112 states have call predecessors, (404), 112 states have return successors, (746), 404 states have call predecessors, (746), 404 states have call successors, (746) [2021-11-05 22:27:06,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104916 states to 104916 states and 132156 transitions. [2021-11-05 22:27:06,147 INFO L78 Accepts]: Start accepts. Automaton has 104916 states and 132156 transitions. Word has length 205 [2021-11-05 22:27:06,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:27:06,148 INFO L470 AbstractCegarLoop]: Abstraction has 104916 states and 132156 transitions. [2021-11-05 22:27:06,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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 22:27:06,148 INFO L276 IsEmpty]: Start isEmpty. Operand 104916 states and 132156 transitions. [2021-11-05 22:27:06,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-05 22:27:06,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:27:06,162 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:06,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 22:27:06,163 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-05 22:27:06,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:27:06,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1537057241, now seen corresponding path program 1 times [2021-11-05 22:27:06,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:27:06,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559201831] [2021-11-05 22:27:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:27:06,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:27:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:27:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-05 22:27:06,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:27:06,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559201831] [2021-11-05 22:27:06,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559201831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:27:06,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:27:06,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:27:06,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468433609] [2021-11-05 22:27:06,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:27:06,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:27:06,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:27:06,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:27:06,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:27:06,832 INFO L87 Difference]: Start difference. First operand 104916 states and 132156 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 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)