./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.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 d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:45:29,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:45:29,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:45:29,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:45:29,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:45:29,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:45:29,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:45:29,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:45:29,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:45:29,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:45:29,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:45:29,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:45:29,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:45:29,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:45:29,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:45:29,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:45:29,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:45:29,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:45:29,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:45:29,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:45:29,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:45:29,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:45:29,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:45:29,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:45:29,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:45:29,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:45:29,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:45:29,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:45:29,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:45:29,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:45:29,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:45:29,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:45:29,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:45:29,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:45:29,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:45:29,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:45:29,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:45:29,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:45:29,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:45:29,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:45:29,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:45:29,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:45:29,259 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:45:29,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:45:29,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:45:29,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:45:29,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:45:29,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:45:29,262 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:45:29,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:45:29,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:45:29,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:45:29,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:45:29,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:45:29,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:45:29,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:45:29,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:45:29,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:45:29,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:45:29,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:45:29,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:45:29,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:45:29,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:45:29,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:45:29,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:45:29,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:45:29,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:45:29,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:45:29,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:45:29,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:45:29,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:45:29,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4784d7b609e947942ffa9f8266acf243583adf996e2bcae78fb9e8c8fa71002 [2021-11-05 20:45:29,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:45:29,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:45:29,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:45:29,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:45:29,534 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:45:29,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-05 20:45:29,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b55251be/36f5d104a8874179868f10d61d2d264c/FLAG097ffe553 [2021-11-05 20:45:30,109 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:45:30,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-05 20:45:30,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b55251be/36f5d104a8874179868f10d61d2d264c/FLAG097ffe553 [2021-11-05 20:45:30,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b55251be/36f5d104a8874179868f10d61d2d264c [2021-11-05 20:45:30,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:45:30,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:45:30,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:45:30,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:45:30,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:45:30,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:45:30" (1/1) ... [2021-11-05 20:45:30,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16926d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:30, skipping insertion in model container [2021-11-05 20:45:30,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:45:30" (1/1) ... [2021-11-05 20:45:30,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:45:30,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:45:31,967 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-11-05 20:45:31,969 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-11-05 20:45:31,969 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-11-05 20:45:31,970 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-11-05 20:45:31,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:45:32,040 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:45:32,302 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349228,349241] [2021-11-05 20:45:32,303 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349397,349410] [2021-11-05 20:45:32,304 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349564,349577] [2021-11-05 20:45:32,304 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i[349732,349745] [2021-11-05 20:45:32,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:45:32,450 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:45:32,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32 WrapperNode [2021-11-05 20:45:32,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:45:32,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:45:32,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:45:32,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:45:32,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:32,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:32,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:45:32,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:45:32,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:45:32,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:45:32,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:32,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:33,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:33,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:33,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:33,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:33,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:33,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:45:33,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:45:33,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:45:33,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:45:33,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (1/1) ... [2021-11-05 20:45:33,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:45:33,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:45:33,593 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 20:45:33,611 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 20:45:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:45:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:45:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:45:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:45:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:45:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:45:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:45:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:45:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:45:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:45:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:45:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:45:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:45:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:45:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:47:05,490 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:47:05,490 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:47:05,491 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:47:05,491 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:47:05,492 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:47:05,492 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:47:05,519 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:47:05,519 INFO L299 CfgBuilder]: Removed 4962 assume(true) statements. [2021-11-05 20:47:05,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:47:05 BoogieIcfgContainer [2021-11-05 20:47:05,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:47:05,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:47:05,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:47:05,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:47:05,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:45:30" (1/3) ... [2021-11-05 20:47:05,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dee3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:47:05, skipping insertion in model container [2021-11-05 20:47:05,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:45:32" (2/3) ... [2021-11-05 20:47:05,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dee3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:47:05, skipping insertion in model container [2021-11-05 20:47:05,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:47:05" (3/3) ... [2021-11-05 20:47:05,531 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-sundance.cil.i [2021-11-05 20:47:05,534 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:47:05,534 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 79 error locations. [2021-11-05 20:47:05,588 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:47:05,594 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 20:47:05,594 INFO L340 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2021-11-05 20:47:05,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 4352 states, 4273 states have (on average 1.3213199157500586) internal successors, (5646), 4351 states have internal predecessors, (5646), 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 20:47:05,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-05 20:47:05,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:05,667 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] [2021-11-05 20:47:05,668 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:05,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1806629518, now seen corresponding path program 1 times [2021-11-05 20:47:05,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:05,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245259621] [2021-11-05 20:47:05,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:05,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:06,307 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 20:47:06,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:06,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245259621] [2021-11-05 20:47:06,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245259621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:06,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:06,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:06,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102306356] [2021-11-05 20:47:06,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:06,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:47:06,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:06,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:47:06,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:06,348 INFO L87 Difference]: Start difference. First operand has 4352 states, 4273 states have (on average 1.3213199157500586) internal successors, (5646), 4351 states have internal predecessors, (5646), 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) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 20:47:08,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:47:08,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:08,923 INFO L93 Difference]: Finished difference Result 12470 states and 16187 transitions. [2021-11-05 20:47:08,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:47:08,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-05 20:47:08,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:08,982 INFO L225 Difference]: With dead ends: 12470 [2021-11-05 20:47:08,982 INFO L226 Difference]: Without dead ends: 7938 [2021-11-05 20:47:08,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:08,997 INFO L933 BasicCegarLoop]: 5441 mSDtfsCounter, 5059 mSDsluCounter, 5393 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2180.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 10834 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.30ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2286.42ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:08,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5059 Valid, 10834 Invalid, 34 Unknown, 0 Unchecked, 24.30ms Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2286.42ms Time] [2021-11-05 20:47:09,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7938 states. [2021-11-05 20:47:09,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7938 to 7858. [2021-11-05 20:47:09,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7858 states, 7779 states have (on average 1.2610875433860393) internal successors, (9810), 7857 states have internal predecessors, (9810), 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 20:47:09,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7858 states to 7858 states and 9810 transitions. [2021-11-05 20:47:09,211 INFO L78 Accepts]: Start accepts. Automaton has 7858 states and 9810 transitions. Word has length 57 [2021-11-05 20:47:09,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:09,212 INFO L470 AbstractCegarLoop]: Abstraction has 7858 states and 9810 transitions. [2021-11-05 20:47:09,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 20:47:09,212 INFO L276 IsEmpty]: Start isEmpty. Operand 7858 states and 9810 transitions. [2021-11-05 20:47:09,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-05 20:47:09,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:09,215 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] [2021-11-05 20:47:09,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:47:09,215 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:09,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1518682448, now seen corresponding path program 1 times [2021-11-05 20:47:09,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:09,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569696501] [2021-11-05 20:47:09,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:09,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:09,412 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 20:47:09,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:09,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569696501] [2021-11-05 20:47:09,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569696501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:09,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:09,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:09,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067028361] [2021-11-05 20:47:09,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:09,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:47:09,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:09,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:47:09,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:09,415 INFO L87 Difference]: Start difference. First operand 7858 states and 9810 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 20:47:11,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:47:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:12,142 INFO L93 Difference]: Finished difference Result 21480 states and 26822 transitions. [2021-11-05 20:47:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:47:12,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2021-11-05 20:47:12,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:12,184 INFO L225 Difference]: With dead ends: 21480 [2021-11-05 20:47:12,186 INFO L226 Difference]: Without dead ends: 13730 [2021-11-05 20:47:12,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:12,201 INFO L933 BasicCegarLoop]: 5081 mSDtfsCounter, 3852 mSDsluCounter, 4912 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2346.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3852 SdHoareTripleChecker+Valid, 9993 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.62ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2465.03ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:12,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3852 Valid, 9993 Invalid, 105 Unknown, 0 Unchecked, 14.62ms Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 2465.03ms Time] [2021-11-05 20:47:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13730 states. [2021-11-05 20:47:12,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13730 to 12996. [2021-11-05 20:47:12,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12996 states, 12917 states have (on average 1.262831926918015) internal successors, (16312), 12995 states have internal predecessors, (16312), 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 20:47:12,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12996 states to 12996 states and 16312 transitions. [2021-11-05 20:47:12,487 INFO L78 Accepts]: Start accepts. Automaton has 12996 states and 16312 transitions. Word has length 63 [2021-11-05 20:47:12,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:12,491 INFO L470 AbstractCegarLoop]: Abstraction has 12996 states and 16312 transitions. [2021-11-05 20:47:12,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 20:47:12,492 INFO L276 IsEmpty]: Start isEmpty. Operand 12996 states and 16312 transitions. [2021-11-05 20:47:12,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-05 20:47:12,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:12,495 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] [2021-11-05 20:47:12,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:47:12,495 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:12,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:12,496 INFO L85 PathProgramCache]: Analyzing trace with hash -578711267, now seen corresponding path program 1 times [2021-11-05 20:47:12,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:12,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321588922] [2021-11-05 20:47:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:12,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:12,760 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 20:47:12,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:12,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321588922] [2021-11-05 20:47:12,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321588922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:12,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:12,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:12,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283873575] [2021-11-05 20:47:12,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:12,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:47:12,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:12,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:47:12,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:12,763 INFO L87 Difference]: Start difference. First operand 12996 states and 16312 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 20:47:14,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:47:15,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:15,589 INFO L93 Difference]: Finished difference Result 36598 states and 45978 transitions. [2021-11-05 20:47:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:47:15,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2021-11-05 20:47:15,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:15,676 INFO L225 Difference]: With dead ends: 36598 [2021-11-05 20:47:15,676 INFO L226 Difference]: Without dead ends: 23710 [2021-11-05 20:47:15,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:15,710 INFO L933 BasicCegarLoop]: 5073 mSDtfsCounter, 4511 mSDsluCounter, 4682 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2240.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4511 SdHoareTripleChecker+Valid, 9755 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.92ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2366.99ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:15,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4511 Valid, 9755 Invalid, 64 Unknown, 0 Unchecked, 11.92ms Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2366.99ms Time] [2021-11-05 20:47:15,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23710 states. [2021-11-05 20:47:16,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23710 to 22878. [2021-11-05 20:47:16,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22878 states, 22799 states have (on average 1.2666345015132243) internal successors, (28878), 22877 states have internal predecessors, (28878), 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 20:47:16,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22878 states to 22878 states and 28878 transitions. [2021-11-05 20:47:16,223 INFO L78 Accepts]: Start accepts. Automaton has 22878 states and 28878 transitions. Word has length 64 [2021-11-05 20:47:16,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:16,223 INFO L470 AbstractCegarLoop]: Abstraction has 22878 states and 28878 transitions. [2021-11-05 20:47:16,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 20:47:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 22878 states and 28878 transitions. [2021-11-05 20:47:16,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 20:47:16,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:16,226 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] [2021-11-05 20:47:16,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:47:16,226 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:16,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:16,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1120258482, now seen corresponding path program 1 times [2021-11-05 20:47:16,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:16,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409396292] [2021-11-05 20:47:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:16,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:16,472 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 20:47:16,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:16,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409396292] [2021-11-05 20:47:16,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409396292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:16,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:16,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:16,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126802094] [2021-11-05 20:47:16,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:16,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:47:16,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:16,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:47:16,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:16,475 INFO L87 Difference]: Start difference. First operand 22878 states and 28878 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 20:47:18,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:47:19,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:19,298 INFO L93 Difference]: Finished difference Result 38703 states and 48893 transitions. [2021-11-05 20:47:19,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:47:19,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-05 20:47:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:19,322 INFO L225 Difference]: With dead ends: 38703 [2021-11-05 20:47:19,322 INFO L226 Difference]: Without dead ends: 15933 [2021-11-05 20:47:19,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:19,344 INFO L933 BasicCegarLoop]: 6615 mSDtfsCounter, 2155 mSDsluCounter, 4928 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2317.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 11543 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.44ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2445.60ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:19,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2155 Valid, 11543 Invalid, 100 Unknown, 0 Unchecked, 6.44ms Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2445.60ms Time] [2021-11-05 20:47:19,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15933 states. [2021-11-05 20:47:19,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15933 to 15803. [2021-11-05 20:47:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15803 states, 15724 states have (on average 1.2688247265326889) internal successors, (19951), 15802 states have internal predecessors, (19951), 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 20:47:19,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15803 states to 15803 states and 19951 transitions. [2021-11-05 20:47:19,584 INFO L78 Accepts]: Start accepts. Automaton has 15803 states and 19951 transitions. Word has length 71 [2021-11-05 20:47:19,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:19,586 INFO L470 AbstractCegarLoop]: Abstraction has 15803 states and 19951 transitions. [2021-11-05 20:47:19,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 20:47:19,586 INFO L276 IsEmpty]: Start isEmpty. Operand 15803 states and 19951 transitions. [2021-11-05 20:47:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-05 20:47:19,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:19,595 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] [2021-11-05 20:47:19,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:47:19,595 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:19,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:19,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1794554846, now seen corresponding path program 1 times [2021-11-05 20:47:19,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:19,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966193989] [2021-11-05 20:47:19,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:19,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:19,825 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 20:47:19,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:19,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966193989] [2021-11-05 20:47:19,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966193989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:19,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:19,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:19,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861023879] [2021-11-05 20:47:19,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:19,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:47:19,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:19,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:47:19,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:19,831 INFO L87 Difference]: Start difference. First operand 15803 states and 19951 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 20:47:21,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:47:22,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:22,383 INFO L93 Difference]: Finished difference Result 46089 states and 58300 transitions. [2021-11-05 20:47:22,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:47:22,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2021-11-05 20:47:22,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:22,447 INFO L225 Difference]: With dead ends: 46089 [2021-11-05 20:47:22,447 INFO L226 Difference]: Without dead ends: 30719 [2021-11-05 20:47:22,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:22,480 INFO L933 BasicCegarLoop]: 5494 mSDtfsCounter, 4756 mSDsluCounter, 5066 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2149.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 10560 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.55ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2247.99ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:22,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4756 Valid, 10560 Invalid, 30 Unknown, 0 Unchecked, 6.55ms Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2247.99ms Time] [2021-11-05 20:47:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30719 states. [2021-11-05 20:47:23,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30719 to 30639. [2021-11-05 20:47:23,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30639 states, 30560 states have (on average 1.2696335078534031) internal successors, (38800), 30638 states have internal predecessors, (38800), 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 20:47:23,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30639 states to 30639 states and 38800 transitions. [2021-11-05 20:47:23,190 INFO L78 Accepts]: Start accepts. Automaton has 30639 states and 38800 transitions. Word has length 86 [2021-11-05 20:47:23,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:23,192 INFO L470 AbstractCegarLoop]: Abstraction has 30639 states and 38800 transitions. [2021-11-05 20:47:23,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 20:47:23,193 INFO L276 IsEmpty]: Start isEmpty. Operand 30639 states and 38800 transitions. [2021-11-05 20:47:23,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-05 20:47:23,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:23,195 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] [2021-11-05 20:47:23,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:47:23,195 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:23,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:23,196 INFO L85 PathProgramCache]: Analyzing trace with hash 514691168, now seen corresponding path program 1 times [2021-11-05 20:47:23,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:23,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529508478] [2021-11-05 20:47:23,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:23,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:23,398 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 20:47:23,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:23,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529508478] [2021-11-05 20:47:23,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529508478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:23,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:23,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:23,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985820954] [2021-11-05 20:47:23,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:23,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:47:23,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:23,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:47:23,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:23,400 INFO L87 Difference]: Start difference. First operand 30639 states and 38800 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 20:47:25,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:47:26,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:26,465 INFO L93 Difference]: Finished difference Result 75769 states and 96014 transitions. [2021-11-05 20:47:26,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:47:26,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2021-11-05 20:47:26,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:26,554 INFO L225 Difference]: With dead ends: 75769 [2021-11-05 20:47:26,554 INFO L226 Difference]: Without dead ends: 45563 [2021-11-05 20:47:26,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:26,610 INFO L933 BasicCegarLoop]: 9842 mSDtfsCounter, 4806 mSDsluCounter, 5017 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2136.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4806 SdHoareTripleChecker+Valid, 14859 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.54ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2260.06ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:26,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4806 Valid, 14859 Invalid, 32 Unknown, 0 Unchecked, 8.54ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2260.06ms Time] [2021-11-05 20:47:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45563 states. [2021-11-05 20:47:27,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45563 to 45434. [2021-11-05 20:47:27,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45434 states, 45355 states have (on average 1.2701576452430823) internal successors, (57608), 45433 states have internal predecessors, (57608), 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 20:47:27,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45434 states to 45434 states and 57608 transitions. [2021-11-05 20:47:27,562 INFO L78 Accepts]: Start accepts. Automaton has 45434 states and 57608 transitions. Word has length 86 [2021-11-05 20:47:27,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:27,562 INFO L470 AbstractCegarLoop]: Abstraction has 45434 states and 57608 transitions. [2021-11-05 20:47:27,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 20:47:27,562 INFO L276 IsEmpty]: Start isEmpty. Operand 45434 states and 57608 transitions. [2021-11-05 20:47:27,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-05 20:47:27,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:27,564 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:47:27,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:47:27,565 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:27,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:27,565 INFO L85 PathProgramCache]: Analyzing trace with hash 496418719, now seen corresponding path program 1 times [2021-11-05 20:47:27,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:27,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683099193] [2021-11-05 20:47:27,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:27,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:27,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:27,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683099193] [2021-11-05 20:47:27,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683099193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:27,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:27,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:27,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494729738] [2021-11-05 20:47:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:27,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:27,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:27,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:27,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:27,989 INFO L87 Difference]: Start difference. First operand 45434 states and 57608 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 20:47:28,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:28,857 INFO L93 Difference]: Finished difference Result 45434 states and 57608 transitions. [2021-11-05 20:47:28,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:28,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 87 [2021-11-05 20:47:28,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:28,929 INFO L225 Difference]: With dead ends: 45434 [2021-11-05 20:47:28,929 INFO L226 Difference]: Without dead ends: 45428 [2021-11-05 20:47:28,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.36ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:28,949 INFO L933 BasicCegarLoop]: 5080 mSDtfsCounter, 5014 mSDsluCounter, 4975 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 263.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5014 SdHoareTripleChecker+Valid, 10055 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.81ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 288.25ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:28,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5014 Valid, 10055 Invalid, 115 Unknown, 0 Unchecked, 17.81ms Time], IncrementalHoareTripleChecker [37 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 288.25ms Time] [2021-11-05 20:47:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45428 states. [2021-11-05 20:47:29,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45428 to 45428. [2021-11-05 20:47:30,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45428 states, 45352 states have (on average 1.270109366731346) internal successors, (57602), 45427 states have internal predecessors, (57602), 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 20:47:30,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45428 states to 45428 states and 57602 transitions. [2021-11-05 20:47:30,108 INFO L78 Accepts]: Start accepts. Automaton has 45428 states and 57602 transitions. Word has length 87 [2021-11-05 20:47:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:30,109 INFO L470 AbstractCegarLoop]: Abstraction has 45428 states and 57602 transitions. [2021-11-05 20:47:30,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 20:47:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 45428 states and 57602 transitions. [2021-11-05 20:47:30,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-05 20:47:30,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:30,112 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:47:30,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:47:30,112 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:30,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:30,113 INFO L85 PathProgramCache]: Analyzing trace with hash 317170018, now seen corresponding path program 1 times [2021-11-05 20:47:30,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:30,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398303311] [2021-11-05 20:47:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:30,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:30,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:30,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398303311] [2021-11-05 20:47:30,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398303311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:30,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:30,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:30,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026126657] [2021-11-05 20:47:30,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:30,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:30,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:30,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:30,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:30,377 INFO L87 Difference]: Start difference. First operand 45428 states and 57602 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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 20:47:31,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:31,424 INFO L93 Difference]: Finished difference Result 45428 states and 57602 transitions. [2021-11-05 20:47:31,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:31,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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 89 [2021-11-05 20:47:31,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:31,496 INFO L225 Difference]: With dead ends: 45428 [2021-11-05 20:47:31,496 INFO L226 Difference]: Without dead ends: 45422 [2021-11-05 20:47:31,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:31,515 INFO L933 BasicCegarLoop]: 5074 mSDtfsCounter, 5003 mSDsluCounter, 4972 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 261.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 10046 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.27ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 293.16ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:31,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5003 Valid, 10046 Invalid, 115 Unknown, 0 Unchecked, 16.27ms Time], IncrementalHoareTripleChecker [40 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 293.16ms Time] [2021-11-05 20:47:31,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45422 states. [2021-11-05 20:47:32,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45422 to 45422. [2021-11-05 20:47:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45422 states, 45349 states have (on average 1.270061081832014) internal successors, (57596), 45421 states have internal predecessors, (57596), 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 20:47:32,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45422 states to 45422 states and 57596 transitions. [2021-11-05 20:47:32,660 INFO L78 Accepts]: Start accepts. Automaton has 45422 states and 57596 transitions. Word has length 89 [2021-11-05 20:47:32,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:32,660 INFO L470 AbstractCegarLoop]: Abstraction has 45422 states and 57596 transitions. [2021-11-05 20:47:32,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 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 20:47:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 45422 states and 57596 transitions. [2021-11-05 20:47:32,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-05 20:47:32,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:32,663 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:47:32,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:47:32,664 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:32,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:32,664 INFO L85 PathProgramCache]: Analyzing trace with hash -142139483, now seen corresponding path program 1 times [2021-11-05 20:47:32,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:32,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316696319] [2021-11-05 20:47:32,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:32,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:32,960 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:32,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:32,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316696319] [2021-11-05 20:47:32,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316696319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:32,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:32,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:32,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449961326] [2021-11-05 20:47:32,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:32,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:32,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:32,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:32,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:32,963 INFO L87 Difference]: Start difference. First operand 45422 states and 57596 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 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 20:47:34,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:34,059 INFO L93 Difference]: Finished difference Result 45422 states and 57596 transitions. [2021-11-05 20:47:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:34,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 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 91 [2021-11-05 20:47:34,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:34,127 INFO L225 Difference]: With dead ends: 45422 [2021-11-05 20:47:34,127 INFO L226 Difference]: Without dead ends: 45416 [2021-11-05 20:47:34,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:34,144 INFO L933 BasicCegarLoop]: 5068 mSDtfsCounter, 4995 mSDsluCounter, 4969 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 240.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4995 SdHoareTripleChecker+Valid, 10037 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.11ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 259.99ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:34,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4995 Valid, 10037 Invalid, 112 Unknown, 0 Unchecked, 11.11ms Time], IncrementalHoareTripleChecker [40 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 259.99ms Time] [2021-11-05 20:47:34,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45416 states. [2021-11-05 20:47:35,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45416 to 45416. [2021-11-05 20:47:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45416 states, 45346 states have (on average 1.2700127905438185) internal successors, (57590), 45415 states have internal predecessors, (57590), 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 20:47:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45416 states to 45416 states and 57590 transitions. [2021-11-05 20:47:35,294 INFO L78 Accepts]: Start accepts. Automaton has 45416 states and 57590 transitions. Word has length 91 [2021-11-05 20:47:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:35,294 INFO L470 AbstractCegarLoop]: Abstraction has 45416 states and 57590 transitions. [2021-11-05 20:47:35,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 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 20:47:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 45416 states and 57590 transitions. [2021-11-05 20:47:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-05 20:47:35,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:35,313 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:47:35,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:47:35,313 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:35,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:35,314 INFO L85 PathProgramCache]: Analyzing trace with hash 843061864, now seen corresponding path program 1 times [2021-11-05 20:47:35,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:35,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616638040] [2021-11-05 20:47:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:35,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:35,598 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:35,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:35,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616638040] [2021-11-05 20:47:35,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616638040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:35,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:35,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:35,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001782559] [2021-11-05 20:47:35,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:35,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:35,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:35,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:35,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:35,599 INFO L87 Difference]: Start difference. First operand 45416 states and 57590 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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 20:47:36,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:36,779 INFO L93 Difference]: Finished difference Result 45416 states and 57590 transitions. [2021-11-05 20:47:36,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:36,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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 93 [2021-11-05 20:47:36,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:36,856 INFO L225 Difference]: With dead ends: 45416 [2021-11-05 20:47:36,856 INFO L226 Difference]: Without dead ends: 45410 [2021-11-05 20:47:36,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.82ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:36,872 INFO L933 BasicCegarLoop]: 5062 mSDtfsCounter, 4987 mSDsluCounter, 4966 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 253.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4987 SdHoareTripleChecker+Valid, 10028 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.91ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 275.84ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:36,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4987 Valid, 10028 Invalid, 109 Unknown, 0 Unchecked, 10.91ms Time], IncrementalHoareTripleChecker [40 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 275.84ms Time] [2021-11-05 20:47:36,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45410 states. [2021-11-05 20:47:37,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45410 to 45410. [2021-11-05 20:47:38,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45410 states, 45343 states have (on average 1.2699644928654918) internal successors, (57584), 45409 states have internal predecessors, (57584), 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 20:47:38,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45410 states to 45410 states and 57584 transitions. [2021-11-05 20:47:38,101 INFO L78 Accepts]: Start accepts. Automaton has 45410 states and 57584 transitions. Word has length 93 [2021-11-05 20:47:38,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:38,101 INFO L470 AbstractCegarLoop]: Abstraction has 45410 states and 57584 transitions. [2021-11-05 20:47:38,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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 20:47:38,102 INFO L276 IsEmpty]: Start isEmpty. Operand 45410 states and 57584 transitions. [2021-11-05 20:47:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-05 20:47:38,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:38,104 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:47:38,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 20:47:38,105 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:38,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1566215765, now seen corresponding path program 1 times [2021-11-05 20:47:38,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:38,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889395973] [2021-11-05 20:47:38,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:38,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:38,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:38,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889395973] [2021-11-05 20:47:38,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889395973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:38,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:38,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:38,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876778660] [2021-11-05 20:47:38,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:38,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:38,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:38,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:38,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:38,532 INFO L87 Difference]: Start difference. First operand 45410 states and 57584 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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 20:47:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:39,677 INFO L93 Difference]: Finished difference Result 45410 states and 57584 transitions. [2021-11-05 20:47:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:39,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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 95 [2021-11-05 20:47:39,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:39,754 INFO L225 Difference]: With dead ends: 45410 [2021-11-05 20:47:39,755 INFO L226 Difference]: Without dead ends: 45404 [2021-11-05 20:47:39,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.11ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:39,776 INFO L933 BasicCegarLoop]: 5056 mSDtfsCounter, 4979 mSDsluCounter, 4963 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 287.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4979 SdHoareTripleChecker+Valid, 10019 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.76ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 308.38ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:39,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4979 Valid, 10019 Invalid, 106 Unknown, 0 Unchecked, 9.76ms Time], IncrementalHoareTripleChecker [40 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 308.38ms Time] [2021-11-05 20:47:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45404 states. [2021-11-05 20:47:41,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45404 to 45404. [2021-11-05 20:47:41,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45404 states, 45340 states have (on average 1.2699161887957653) internal successors, (57578), 45403 states have internal predecessors, (57578), 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 20:47:41,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45404 states to 45404 states and 57578 transitions. [2021-11-05 20:47:41,220 INFO L78 Accepts]: Start accepts. Automaton has 45404 states and 57578 transitions. Word has length 95 [2021-11-05 20:47:41,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:41,220 INFO L470 AbstractCegarLoop]: Abstraction has 45404 states and 57578 transitions. [2021-11-05 20:47:41,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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 20:47:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 45404 states and 57578 transitions. [2021-11-05 20:47:41,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-05 20:47:41,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:41,223 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:47:41,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 20:47:41,224 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:41,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:41,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1894644370, now seen corresponding path program 1 times [2021-11-05 20:47:41,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:41,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516138482] [2021-11-05 20:47:41,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:41,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:41,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:41,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516138482] [2021-11-05 20:47:41,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516138482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:41,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:41,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:41,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19987508] [2021-11-05 20:47:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:41,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:41,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:41,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:41,441 INFO L87 Difference]: Start difference. First operand 45404 states and 57578 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 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 20:47:42,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:42,593 INFO L93 Difference]: Finished difference Result 45404 states and 57578 transitions. [2021-11-05 20:47:42,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:42,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 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 97 [2021-11-05 20:47:42,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:42,664 INFO L225 Difference]: With dead ends: 45404 [2021-11-05 20:47:42,665 INFO L226 Difference]: Without dead ends: 45398 [2021-11-05 20:47:42,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.94ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:42,684 INFO L933 BasicCegarLoop]: 5050 mSDtfsCounter, 4971 mSDsluCounter, 4960 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 212.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4971 SdHoareTripleChecker+Valid, 10010 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.48ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.70ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:42,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4971 Valid, 10010 Invalid, 103 Unknown, 0 Unchecked, 9.48ms Time], IncrementalHoareTripleChecker [40 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 229.70ms Time] [2021-11-05 20:47:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45398 states. [2021-11-05 20:47:43,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45398 to 45398. [2021-11-05 20:47:44,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45398 states, 45337 states have (on average 1.2698678783333701) internal successors, (57572), 45397 states have internal predecessors, (57572), 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 20:47:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45398 states to 45398 states and 57572 transitions. [2021-11-05 20:47:44,115 INFO L78 Accepts]: Start accepts. Automaton has 45398 states and 57572 transitions. Word has length 97 [2021-11-05 20:47:44,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:44,116 INFO L470 AbstractCegarLoop]: Abstraction has 45398 states and 57572 transitions. [2021-11-05 20:47:44,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 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 20:47:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 45398 states and 57572 transitions. [2021-11-05 20:47:44,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-05 20:47:44,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:44,119 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:47:44,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 20:47:44,120 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:44,120 INFO L85 PathProgramCache]: Analyzing trace with hash 313046449, now seen corresponding path program 1 times [2021-11-05 20:47:44,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:44,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371328731] [2021-11-05 20:47:44,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:44,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:44,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:44,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371328731] [2021-11-05 20:47:44,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371328731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:44,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:44,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:44,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482181243] [2021-11-05 20:47:44,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:44,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:44,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:44,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:44,340 INFO L87 Difference]: Start difference. First operand 45398 states and 57572 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 20:47:46,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:46,133 INFO L93 Difference]: Finished difference Result 45398 states and 57572 transitions. [2021-11-05 20:47:46,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:46,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 99 [2021-11-05 20:47:46,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:46,206 INFO L225 Difference]: With dead ends: 45398 [2021-11-05 20:47:46,206 INFO L226 Difference]: Without dead ends: 45392 [2021-11-05 20:47:46,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:46,224 INFO L933 BasicCegarLoop]: 5014 mSDtfsCounter, 4452 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 600.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4452 SdHoareTripleChecker+Valid, 10392 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.95ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 642.08ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:46,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4452 Valid, 10392 Invalid, 220 Unknown, 0 Unchecked, 9.95ms Time], IncrementalHoareTripleChecker [55 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 642.08ms Time] [2021-11-05 20:47:46,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45392 states. [2021-11-05 20:47:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45392 to 45392. [2021-11-05 20:47:47,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45392 states, 45334 states have (on average 1.2698195614770371) internal successors, (57566), 45391 states have internal predecessors, (57566), 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 20:47:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45392 states to 45392 states and 57566 transitions. [2021-11-05 20:47:47,581 INFO L78 Accepts]: Start accepts. Automaton has 45392 states and 57566 transitions. Word has length 99 [2021-11-05 20:47:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:47,581 INFO L470 AbstractCegarLoop]: Abstraction has 45392 states and 57566 transitions. [2021-11-05 20:47:47,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 20:47:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 45392 states and 57566 transitions. [2021-11-05 20:47:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 20:47:47,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:47,585 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:47:47,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 20:47:47,586 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash 190079604, now seen corresponding path program 1 times [2021-11-05 20:47:47,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:47,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665245170] [2021-11-05 20:47:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:47,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:47,809 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:47:47,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:47,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665245170] [2021-11-05 20:47:47,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665245170] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:47,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:47,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:47,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114297699] [2021-11-05 20:47:47,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:47,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:47:47,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:47,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:47:47,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:47:47,811 INFO L87 Difference]: Start difference. First operand 45392 states and 57566 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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 20:47:49,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:47:49,386 INFO L93 Difference]: Finished difference Result 45392 states and 57566 transitions. [2021-11-05 20:47:49,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:47:49,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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 101 [2021-11-05 20:47:49,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:47:49,468 INFO L225 Difference]: With dead ends: 45392 [2021-11-05 20:47:49,468 INFO L226 Difference]: Without dead ends: 45386 [2021-11-05 20:47:49,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.04ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:47:49,489 INFO L933 BasicCegarLoop]: 5038 mSDtfsCounter, 4955 mSDsluCounter, 4954 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 216.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4955 SdHoareTripleChecker+Valid, 9992 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.90ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 237.89ms IncrementalHoareTripleChecker+Time [2021-11-05 20:47:49,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4955 Valid, 9992 Invalid, 97 Unknown, 0 Unchecked, 10.90ms Time], IncrementalHoareTripleChecker [40 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 237.89ms Time] [2021-11-05 20:47:49,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45386 states. [2021-11-05 20:47:50,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45386 to 45386. [2021-11-05 20:47:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45386 states, 45331 states have (on average 1.2697712382254969) internal successors, (57560), 45385 states have internal predecessors, (57560), 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 20:47:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45386 states to 45386 states and 57560 transitions. [2021-11-05 20:47:50,882 INFO L78 Accepts]: Start accepts. Automaton has 45386 states and 57560 transitions. Word has length 101 [2021-11-05 20:47:50,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:47:50,882 INFO L470 AbstractCegarLoop]: Abstraction has 45386 states and 57560 transitions. [2021-11-05 20:47:50,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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 20:47:50,884 INFO L276 IsEmpty]: Start isEmpty. Operand 45386 states and 57560 transitions. [2021-11-05 20:47:50,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-05 20:47:50,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:47:50,888 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:47:50,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 20:47:50,888 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 76 more)] === [2021-11-05 20:47:50,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:47:50,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1187624467, now seen corresponding path program 1 times [2021-11-05 20:47:50,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:47:50,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764237109] [2021-11-05 20:47:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:47:50,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:47:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:47:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:47:51,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:47:51,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764237109] [2021-11-05 20:47:51,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764237109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:47:51,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:47:51,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:47:51,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627409149] [2021-11-05 20:47:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:47:51,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:47:51,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:47:51,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:47:51,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:47:51,094 INFO L87 Difference]: Start difference. First operand 45386 states and 57560 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 20:47:53,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []