./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-smsc-epic100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-smsc-epic100.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 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 00:47:10,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 00:47:10,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 00:47:10,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 00:47:10,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 00:47:10,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 00:47:10,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 00:47:10,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 00:47:10,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 00:47:10,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 00:47:10,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 00:47:10,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 00:47:10,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 00:47:10,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 00:47:10,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 00:47:10,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 00:47:10,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 00:47:10,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 00:47:10,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 00:47:10,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 00:47:10,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 00:47:10,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 00:47:10,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 00:47:10,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 00:47:10,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 00:47:10,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 00:47:10,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 00:47:10,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 00:47:10,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 00:47:10,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 00:47:10,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 00:47:10,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 00:47:10,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 00:47:10,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 00:47:10,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 00:47:10,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 00:47:10,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 00:47:10,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 00:47:10,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 00:47:10,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 00:47:10,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 00:47:10,171 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 00:47:10,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 00:47:10,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 00:47:10,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 00:47:10,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 00:47:10,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 00:47:10,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 00:47:10,212 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 00:47:10,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 00:47:10,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 00:47:10,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 00:47:10,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 00:47:10,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 00:47:10,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 00:47:10,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 00:47:10,215 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 00:47:10,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 00:47:10,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 00:47:10,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 00:47:10,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 00:47:10,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:47:10,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 00:47:10,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 00:47:10,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 00:47:10,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 00:47:10,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 00:47:10,217 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 00:47:10,217 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 00:47:10,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 00:47:10,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 00:47:10,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2021-11-03 00:47:10,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 00:47:10,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 00:47:10,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 00:47:10,468 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 00:47:10,469 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 00:47:10,470 INFO L432 ainManager$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-smsc-epic100.cil.i [2021-11-03 00:47:10,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5f109c3/09da4033453f4fb48f22ab5a34ef6fcd/FLAGc08f5340f [2021-11-03 00:47:11,230 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 00:47:11,231 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-smsc-epic100.cil.i [2021-11-03 00:47:11,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5f109c3/09da4033453f4fb48f22ab5a34ef6fcd/FLAGc08f5340f [2021-11-03 00:47:11,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5f109c3/09da4033453f4fb48f22ab5a34ef6fcd [2021-11-03 00:47:11,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 00:47:11,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 00:47:11,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 00:47:11,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 00:47:11,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 00:47:11,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:47:11" (1/1) ... [2021-11-03 00:47:11,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296b49c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:11, skipping insertion in model container [2021-11-03 00:47:11,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:47:11" (1/1) ... [2021-11-03 00:47:11,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 00:47:11,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 00:47:14,347 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-smsc-epic100.cil.i[331922,331935] [2021-11-03 00:47:14,350 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-smsc-epic100.cil.i[332091,332104] [2021-11-03 00:47:14,356 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-smsc-epic100.cil.i[332258,332271] [2021-11-03 00:47:14,358 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-smsc-epic100.cil.i[332426,332439] [2021-11-03 00:47:14,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:47:14,436 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 00:47:14,732 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-smsc-epic100.cil.i[331922,331935] [2021-11-03 00:47:14,733 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-smsc-epic100.cil.i[332091,332104] [2021-11-03 00:47:14,734 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-smsc-epic100.cil.i[332258,332271] [2021-11-03 00:47:14,734 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-smsc-epic100.cil.i[332426,332439] [2021-11-03 00:47:14,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:47:15,027 INFO L208 MainTranslator]: Completed translation [2021-11-03 00:47:15,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15 WrapperNode [2021-11-03 00:47:15,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 00:47:15,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 00:47:15,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 00:47:15,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 00:47:15,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:15,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:15,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 00:47:15,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 00:47:15,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 00:47:15,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 00:47:15,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:15,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:15,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:15,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:16,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:16,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:16,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:16,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 00:47:16,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 00:47:16,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 00:47:16,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 00:47:16,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (1/1) ... [2021-11-03 00:47:16,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:47:16,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 00:47:16,489 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) [2021-11-03 00:47:16,514 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 [2021-11-03 00:47:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 00:47:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 00:47:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 00:47:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 00:47:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 00:47:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 00:47:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 00:47:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 00:47:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 00:47:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 00:47:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 00:47:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 00:47:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 00:47:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 00:47:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 00:47:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 00:47:21,886 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-03 00:47:21,887 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-03 00:47:21,887 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 00:47:21,888 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 00:47:21,888 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 00:47:21,888 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 00:47:21,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 00:47:21,912 INFO L299 CfgBuilder]: Removed 3504 assume(true) statements. [2021-11-03 00:47:21,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:47:21 BoogieIcfgContainer [2021-11-03 00:47:21,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 00:47:21,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 00:47:21,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 00:47:21,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 00:47:21,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:47:11" (1/3) ... [2021-11-03 00:47:21,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2f3926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:47:21, skipping insertion in model container [2021-11-03 00:47:21,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:47:15" (2/3) ... [2021-11-03 00:47:21,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2f3926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:47:21, skipping insertion in model container [2021-11-03 00:47:21,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:47:21" (3/3) ... [2021-11-03 00:47:21,928 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2021-11-03 00:47:21,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 00:47:21,935 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2021-11-03 00:47:21,996 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 00:47:22,003 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 [2021-11-03 00:47:22,004 INFO L340 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2021-11-03 00:47:22,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 3325 states, 3276 states have (on average 1.3427960927960927) internal successors, (4399), 3324 states have internal predecessors, (4399), 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) [2021-11-03 00:47:22,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 00:47:22,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:47:22,087 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] [2021-11-03 00:47:22,088 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:47:22,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:47:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash -113139560, now seen corresponding path program 1 times [2021-11-03 00:47:22,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:47:22,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099833821] [2021-11-03 00:47:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:47:22,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:47:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:47:22,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:47:22,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:47:22,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099833821] [2021-11-03 00:47:22,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099833821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:47:22,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:47:22,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:47:22,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003267583] [2021-11-03 00:47:22,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:47:22,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:47:22,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:47:22,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:47:22,805 INFO L87 Difference]: Start difference. First operand has 3325 states, 3276 states have (on average 1.3427960927960927) internal successors, (4399), 3324 states have internal predecessors, (4399), 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 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-03 00:47:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:47:41,307 INFO L93 Difference]: Finished difference Result 9565 states and 12678 transitions. [2021-11-03 00:47:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:47:41,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-03 00:47:41,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:47:41,355 INFO L225 Difference]: With dead ends: 9565 [2021-11-03 00:47:41,355 INFO L226 Difference]: Without dead ends: 6084 [2021-11-03 00:47:41,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:47:41,372 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 3971 mSDsluCounter, 4253 mSDsCounter, 0 mSdLazyCounter, 8302 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15451.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3971 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 8309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.50ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17701.19ms IncrementalHoareTripleChecker+Time [2021-11-03 00:47:41,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3971 Valid, 279 Invalid, 8309 Unknown, 0 Unchecked, 56.50ms Time], IncrementalHoareTripleChecker [7 Valid, 8302 Invalid, 0 Unknown, 0 Unchecked, 17701.19ms Time] [2021-11-03 00:47:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2021-11-03 00:47:41,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 6064. [2021-11-03 00:47:41,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6064 states, 6015 states have (on average 1.286783042394015) internal successors, (7740), 6063 states have internal predecessors, (7740), 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) [2021-11-03 00:47:41,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6064 states to 6064 states and 7740 transitions. [2021-11-03 00:47:41,679 INFO L78 Accepts]: Start accepts. Automaton has 6064 states and 7740 transitions. Word has length 45 [2021-11-03 00:47:41,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:47:41,680 INFO L470 AbstractCegarLoop]: Abstraction has 6064 states and 7740 transitions. [2021-11-03 00:47:41,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-03 00:47:41,681 INFO L276 IsEmpty]: Start isEmpty. Operand 6064 states and 7740 transitions. [2021-11-03 00:47:41,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-03 00:47:41,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:47:41,685 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] [2021-11-03 00:47:41,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 00:47:41,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:47:41,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:47:41,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1051115891, now seen corresponding path program 1 times [2021-11-03 00:47:41,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:47:41,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563642213] [2021-11-03 00:47:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:47:41,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:47:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:47:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:47:41,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:47:41,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563642213] [2021-11-03 00:47:41,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563642213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:47:41,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:47:41,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:47:41,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797519161] [2021-11-03 00:47:41,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:47:41,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:47:41,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:47:41,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:47:41,880 INFO L87 Difference]: Start difference. First operand 6064 states and 7740 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-03 00:47:56,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:47:56,892 INFO L93 Difference]: Finished difference Result 16094 states and 20572 transitions. [2021-11-03 00:47:56,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:47:56,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-03 00:47:56,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:47:56,935 INFO L225 Difference]: With dead ends: 16094 [2021-11-03 00:47:56,936 INFO L226 Difference]: Without dead ends: 10106 [2021-11-03 00:47:56,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:47:56,952 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3534 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 7190 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12878.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3534 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.73ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 7190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14457.20ms IncrementalHoareTripleChecker+Time [2021-11-03 00:47:56,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3534 Valid, 0 Invalid, 7202 Unknown, 0 Unchecked, 28.73ms Time], IncrementalHoareTripleChecker [12 Valid, 7190 Invalid, 0 Unknown, 0 Unchecked, 14457.20ms Time] [2021-11-03 00:47:56,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10106 states. [2021-11-03 00:47:57,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10106 to 9534. [2021-11-03 00:47:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9534 states, 9485 states have (on average 1.293621507643648) internal successors, (12270), 9533 states have internal predecessors, (12270), 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) [2021-11-03 00:47:57,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9534 states to 9534 states and 12270 transitions. [2021-11-03 00:47:57,237 INFO L78 Accepts]: Start accepts. Automaton has 9534 states and 12270 transitions. Word has length 48 [2021-11-03 00:47:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:47:57,237 INFO L470 AbstractCegarLoop]: Abstraction has 9534 states and 12270 transitions. [2021-11-03 00:47:57,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-03 00:47:57,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9534 states and 12270 transitions. [2021-11-03 00:47:57,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-03 00:47:57,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:47:57,247 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] [2021-11-03 00:47:57,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 00:47:57,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:47:57,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:47:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1663310419, now seen corresponding path program 1 times [2021-11-03 00:47:57,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:47:57,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476175853] [2021-11-03 00:47:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:47:57,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:47:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:47:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:47:57,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:47:57,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476175853] [2021-11-03 00:47:57,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476175853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:47:57,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:47:57,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:47:57,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682867887] [2021-11-03 00:47:57,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:47:57,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:47:57,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:47:57,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:47:57,494 INFO L87 Difference]: Start difference. First operand 9534 states and 12270 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-03 00:48:13,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:48:13,257 INFO L93 Difference]: Finished difference Result 26848 states and 34562 transitions. [2021-11-03 00:48:13,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:48:13,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-11-03 00:48:13,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:48:13,314 INFO L225 Difference]: With dead ends: 26848 [2021-11-03 00:48:13,314 INFO L226 Difference]: Without dead ends: 17390 [2021-11-03 00:48:13,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:48:13,336 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3401 mSDsluCounter, 3942 mSDsCounter, 0 mSdLazyCounter, 8033 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13438.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3401 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.10ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 8033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15105.35ms IncrementalHoareTripleChecker+Time [2021-11-03 00:48:13,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3401 Valid, 0 Invalid, 8042 Unknown, 0 Unchecked, 24.10ms Time], IncrementalHoareTripleChecker [9 Valid, 8033 Invalid, 0 Unknown, 0 Unchecked, 15105.35ms Time] [2021-11-03 00:48:13,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17390 states. [2021-11-03 00:48:13,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17390 to 16002. [2021-11-03 00:48:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16002 states, 15953 states have (on average 1.2954303265843414) internal successors, (20666), 16001 states have internal predecessors, (20666), 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) [2021-11-03 00:48:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16002 states to 16002 states and 20666 transitions. [2021-11-03 00:48:13,766 INFO L78 Accepts]: Start accepts. Automaton has 16002 states and 20666 transitions. Word has length 51 [2021-11-03 00:48:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:48:13,767 INFO L470 AbstractCegarLoop]: Abstraction has 16002 states and 20666 transitions. [2021-11-03 00:48:13,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-03 00:48:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 16002 states and 20666 transitions. [2021-11-03 00:48:13,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 00:48:13,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:48:13,770 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] [2021-11-03 00:48:13,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 00:48:13,771 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:48:13,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:48:13,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1943570088, now seen corresponding path program 1 times [2021-11-03 00:48:13,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:48:13,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780661972] [2021-11-03 00:48:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:48:13,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:48:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:48:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:48:13,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:48:13,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780661972] [2021-11-03 00:48:13,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780661972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:48:13,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:48:13,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:48:13,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278722253] [2021-11-03 00:48:13,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:48:13,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:48:13,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:48:13,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:48:13,968 INFO L87 Difference]: Start difference. First operand 16002 states and 20666 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-03 00:48:15,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:48:33,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:48:33,532 INFO L93 Difference]: Finished difference Result 31940 states and 41269 transitions. [2021-11-03 00:48:33,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:48:33,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2021-11-03 00:48:33,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:48:33,595 INFO L225 Difference]: With dead ends: 31940 [2021-11-03 00:48:33,596 INFO L226 Difference]: Without dead ends: 23810 [2021-11-03 00:48:33,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:48:33,618 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3724 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 11765 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16854.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3724 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.59ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18866.29ms IncrementalHoareTripleChecker+Time [2021-11-03 00:48:33,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3724 Valid, 0 Invalid, 11770 Unknown, 0 Unchecked, 31.59ms Time], IncrementalHoareTripleChecker [5 Valid, 11765 Invalid, 0 Unknown, 0 Unchecked, 18866.29ms Time] [2021-11-03 00:48:33,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23810 states. [2021-11-03 00:48:34,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23810 to 23790. [2021-11-03 00:48:34,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23790 states, 23741 states have (on average 1.2959858472684385) internal successors, (30768), 23789 states have internal predecessors, (30768), 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) [2021-11-03 00:48:34,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23790 states to 23790 states and 30768 transitions. [2021-11-03 00:48:34,165 INFO L78 Accepts]: Start accepts. Automaton has 23790 states and 30768 transitions. Word has length 74 [2021-11-03 00:48:34,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:48:34,165 INFO L470 AbstractCegarLoop]: Abstraction has 23790 states and 30768 transitions. [2021-11-03 00:48:34,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-03 00:48:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 23790 states and 30768 transitions. [2021-11-03 00:48:34,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 00:48:34,167 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:48:34,168 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] [2021-11-03 00:48:34,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 00:48:34,168 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:48:34,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:48:34,169 INFO L85 PathProgramCache]: Analyzing trace with hash 663706410, now seen corresponding path program 1 times [2021-11-03 00:48:34,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:48:34,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966218919] [2021-11-03 00:48:34,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:48:34,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:48:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:48:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:48:34,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:48:34,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966218919] [2021-11-03 00:48:34,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966218919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:48:34,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:48:34,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:48:34,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359151716] [2021-11-03 00:48:34,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:48:34,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:48:34,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:48:34,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:48:34,374 INFO L87 Difference]: Start difference. First operand 23790 states and 30768 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-03 00:48:35,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:48:37,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:48:54,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:48:54,340 INFO L93 Difference]: Finished difference Result 47520 states and 61481 transitions. [2021-11-03 00:48:54,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:48:54,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2021-11-03 00:48:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:48:54,439 INFO L225 Difference]: With dead ends: 47520 [2021-11-03 00:48:54,439 INFO L226 Difference]: Without dead ends: 31602 [2021-11-03 00:48:54,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:48:54,481 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3774 mSDsluCounter, 3949 mSDsCounter, 0 mSdLazyCounter, 11717 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17229.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3774 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.36ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19217.90ms IncrementalHoareTripleChecker+Time [2021-11-03 00:48:54,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3774 Valid, 0 Invalid, 11723 Unknown, 0 Unchecked, 32.36ms Time], IncrementalHoareTripleChecker [6 Valid, 11717 Invalid, 0 Unknown, 0 Unchecked, 19217.90ms Time] [2021-11-03 00:48:54,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31602 states. [2021-11-03 00:48:55,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31602 to 31561. [2021-11-03 00:48:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31561 states, 31512 states have (on average 1.2964267580604214) internal successors, (40853), 31560 states have internal predecessors, (40853), 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) [2021-11-03 00:48:55,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31561 states to 31561 states and 40853 transitions. [2021-11-03 00:48:55,165 INFO L78 Accepts]: Start accepts. Automaton has 31561 states and 40853 transitions. Word has length 74 [2021-11-03 00:48:55,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:48:55,165 INFO L470 AbstractCegarLoop]: Abstraction has 31561 states and 40853 transitions. [2021-11-03 00:48:55,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-03 00:48:55,166 INFO L276 IsEmpty]: Start isEmpty. Operand 31561 states and 40853 transitions. [2021-11-03 00:48:55,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 00:48:55,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:48:55,168 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] [2021-11-03 00:48:55,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 00:48:55,169 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:48:55,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:48:55,170 INFO L85 PathProgramCache]: Analyzing trace with hash 820923817, now seen corresponding path program 1 times [2021-11-03 00:48:55,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:48:55,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909566007] [2021-11-03 00:48:55,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:48:55,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:48:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:48:55,396 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:48:55,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:48:55,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909566007] [2021-11-03 00:48:55,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909566007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:48:55,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:48:55,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:48:55,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9922620] [2021-11-03 00:48:55,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:48:55,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:48:55,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:48:55,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:48:55,398 INFO L87 Difference]: Start difference. First operand 31561 states and 40853 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-03 00:48:57,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:49:07,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:49:07,978 INFO L93 Difference]: Finished difference Result 31561 states and 40853 transitions. [2021-11-03 00:49:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:49:07,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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 75 [2021-11-03 00:49:07,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:49:08,067 INFO L225 Difference]: With dead ends: 31561 [2021-11-03 00:49:08,067 INFO L226 Difference]: Without dead ends: 31555 [2021-11-03 00:49:08,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.37ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:49:08,087 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3958 mSDsluCounter, 3907 mSDsCounter, 0 mSdLazyCounter, 7997 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10769.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3958 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.63ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12029.20ms IncrementalHoareTripleChecker+Time [2021-11-03 00:49:08,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3958 Valid, 0 Invalid, 8034 Unknown, 0 Unchecked, 30.63ms Time], IncrementalHoareTripleChecker [37 Valid, 7997 Invalid, 0 Unknown, 0 Unchecked, 12029.20ms Time] [2021-11-03 00:49:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31555 states. [2021-11-03 00:49:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31555 to 31555. [2021-11-03 00:49:08,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31555 states, 31509 states have (on average 1.2963597702243803) internal successors, (40847), 31554 states have internal predecessors, (40847), 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) [2021-11-03 00:49:08,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31555 states to 31555 states and 40847 transitions. [2021-11-03 00:49:08,958 INFO L78 Accepts]: Start accepts. Automaton has 31555 states and 40847 transitions. Word has length 75 [2021-11-03 00:49:08,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:49:08,959 INFO L470 AbstractCegarLoop]: Abstraction has 31555 states and 40847 transitions. [2021-11-03 00:49:08,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-03 00:49:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 31555 states and 40847 transitions. [2021-11-03 00:49:08,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-03 00:49:08,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:49:08,963 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] [2021-11-03 00:49:08,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 00:49:08,963 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:49:08,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:49:08,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1366046868, now seen corresponding path program 1 times [2021-11-03 00:49:08,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:49:08,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705258852] [2021-11-03 00:49:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:49:08,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:49:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:49:09,250 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:49:09,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:49:09,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705258852] [2021-11-03 00:49:09,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705258852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:49:09,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:49:09,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:49:09,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757303738] [2021-11-03 00:49:09,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:49:09,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:49:09,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:49:09,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:49:09,253 INFO L87 Difference]: Start difference. First operand 31555 states and 40847 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-03 00:49:10,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:49:12,394 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:49:24,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:49:24,454 INFO L93 Difference]: Finished difference Result 31555 states and 40847 transitions. [2021-11-03 00:49:24,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:49:24,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 77 [2021-11-03 00:49:24,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:49:24,508 INFO L225 Difference]: With dead ends: 31555 [2021-11-03 00:49:24,508 INFO L226 Difference]: Without dead ends: 31549 [2021-11-03 00:49:24,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.70ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:49:24,522 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3947 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 7984 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13051.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.07ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7984 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14430.50ms IncrementalHoareTripleChecker+Time [2021-11-03 00:49:24,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3947 Valid, 0 Invalid, 8025 Unknown, 0 Unchecked, 35.07ms Time], IncrementalHoareTripleChecker [40 Valid, 7984 Invalid, 1 Unknown, 0 Unchecked, 14430.50ms Time] [2021-11-03 00:49:24,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31549 states. [2021-11-03 00:49:25,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31549 to 31549. [2021-11-03 00:49:25,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31549 states, 31506 states have (on average 1.2962927696311815) internal successors, (40841), 31548 states have internal predecessors, (40841), 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) [2021-11-03 00:49:25,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31549 states to 31549 states and 40841 transitions. [2021-11-03 00:49:25,300 INFO L78 Accepts]: Start accepts. Automaton has 31549 states and 40841 transitions. Word has length 77 [2021-11-03 00:49:25,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:49:25,300 INFO L470 AbstractCegarLoop]: Abstraction has 31549 states and 40841 transitions. [2021-11-03 00:49:25,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-03 00:49:25,301 INFO L276 IsEmpty]: Start isEmpty. Operand 31549 states and 40841 transitions. [2021-11-03 00:49:25,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 00:49:25,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:49:25,304 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] [2021-11-03 00:49:25,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 00:49:25,305 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:49:25,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:49:25,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1489100207, now seen corresponding path program 1 times [2021-11-03 00:49:25,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:49:25,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484107872] [2021-11-03 00:49:25,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:49:25,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:49:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:49:25,583 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:49:25,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:49:25,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484107872] [2021-11-03 00:49:25,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484107872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:49:25,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:49:25,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:49:25,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068655854] [2021-11-03 00:49:25,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:49:25,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:49:25,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:49:25,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:49:25,586 INFO L87 Difference]: Start difference. First operand 31549 states and 40841 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-03 00:49:27,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:49:38,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:49:38,057 INFO L93 Difference]: Finished difference Result 31549 states and 40841 transitions. [2021-11-03 00:49:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:49:38,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 79 [2021-11-03 00:49:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:49:38,112 INFO L225 Difference]: With dead ends: 31549 [2021-11-03 00:49:38,112 INFO L226 Difference]: Without dead ends: 31543 [2021-11-03 00:49:38,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.10ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:49:38,126 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3939 mSDsluCounter, 3900 mSDsCounter, 0 mSdLazyCounter, 7971 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10669.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3939 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.87ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7971 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11750.51ms IncrementalHoareTripleChecker+Time [2021-11-03 00:49:38,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3939 Valid, 0 Invalid, 8012 Unknown, 0 Unchecked, 27.87ms Time], IncrementalHoareTripleChecker [40 Valid, 7971 Invalid, 1 Unknown, 0 Unchecked, 11750.51ms Time] [2021-11-03 00:49:38,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31543 states. [2021-11-03 00:49:38,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31543 to 31543. [2021-11-03 00:49:38,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31543 states, 31503 states have (on average 1.29622575627718) internal successors, (40835), 31542 states have internal predecessors, (40835), 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) [2021-11-03 00:49:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31543 states to 31543 states and 40835 transitions. [2021-11-03 00:49:38,841 INFO L78 Accepts]: Start accepts. Automaton has 31543 states and 40835 transitions. Word has length 79 [2021-11-03 00:49:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:49:38,841 INFO L470 AbstractCegarLoop]: Abstraction has 31543 states and 40835 transitions. [2021-11-03 00:49:38,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-03 00:49:38,841 INFO L276 IsEmpty]: Start isEmpty. Operand 31543 states and 40835 transitions. [2021-11-03 00:49:38,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 00:49:38,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:49:38,845 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] [2021-11-03 00:49:38,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-03 00:49:38,846 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:49:38,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:49:38,846 INFO L85 PathProgramCache]: Analyzing trace with hash 801337458, now seen corresponding path program 1 times [2021-11-03 00:49:38,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:49:38,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462032154] [2021-11-03 00:49:38,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:49:38,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:49:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:49:39,029 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:49:39,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:49:39,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462032154] [2021-11-03 00:49:39,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462032154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:49:39,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:49:39,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:49:39,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756968135] [2021-11-03 00:49:39,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:49:39,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:49:39,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:49:39,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:49:39,032 INFO L87 Difference]: Start difference. First operand 31543 states and 40835 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-03 00:49:41,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:49:55,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:49:55,685 INFO L93 Difference]: Finished difference Result 31543 states and 40835 transitions. [2021-11-03 00:49:55,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:49:55,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 81 [2021-11-03 00:49:55,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:49:55,740 INFO L225 Difference]: With dead ends: 31543 [2021-11-03 00:49:55,740 INFO L226 Difference]: Without dead ends: 31537 [2021-11-03 00:49:55,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:49:55,751 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3931 mSDsluCounter, 3898 mSDsCounter, 0 mSdLazyCounter, 7960 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14362.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3931 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.29ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7960 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15784.69ms IncrementalHoareTripleChecker+Time [2021-11-03 00:49:55,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3931 Valid, 0 Invalid, 8001 Unknown, 0 Unchecked, 31.29ms Time], IncrementalHoareTripleChecker [40 Valid, 7960 Invalid, 1 Unknown, 0 Unchecked, 15784.69ms Time] [2021-11-03 00:49:55,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31537 states. [2021-11-03 00:49:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31537 to 31537. [2021-11-03 00:49:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31537 states, 31500 states have (on average 1.29615873015873) internal successors, (40829), 31536 states have internal predecessors, (40829), 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) [2021-11-03 00:49:56,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31537 states to 31537 states and 40829 transitions. [2021-11-03 00:49:56,495 INFO L78 Accepts]: Start accepts. Automaton has 31537 states and 40829 transitions. Word has length 81 [2021-11-03 00:49:56,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:49:56,496 INFO L470 AbstractCegarLoop]: Abstraction has 31537 states and 40829 transitions. [2021-11-03 00:49:56,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-03 00:49:56,496 INFO L276 IsEmpty]: Start isEmpty. Operand 31537 states and 40829 transitions. [2021-11-03 00:49:56,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-03 00:49:56,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:49:56,500 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] [2021-11-03 00:49:56,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-03 00:49:56,501 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:49:56,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:49:56,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1286299573, now seen corresponding path program 1 times [2021-11-03 00:49:56,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:49:56,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292919583] [2021-11-03 00:49:56,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:49:56,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:49:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:49:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:49:56,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:49:56,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292919583] [2021-11-03 00:49:56,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292919583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:49:56,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:49:56,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:49:56,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32334701] [2021-11-03 00:49:56,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:49:56,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:49:56,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:49:56,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:49:56,727 INFO L87 Difference]: Start difference. First operand 31537 states and 40829 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-03 00:49:57,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:50:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:50:12,333 INFO L93 Difference]: Finished difference Result 31537 states and 40829 transitions. [2021-11-03 00:50:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:50:12,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 83 [2021-11-03 00:50:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:50:12,386 INFO L225 Difference]: With dead ends: 31537 [2021-11-03 00:50:12,386 INFO L226 Difference]: Without dead ends: 31531 [2021-11-03 00:50:12,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.93ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:50:12,397 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3923 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 7949 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13088.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3923 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.89ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14601.32ms IncrementalHoareTripleChecker+Time [2021-11-03 00:50:12,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3923 Valid, 0 Invalid, 7989 Unknown, 0 Unchecked, 30.89ms Time], IncrementalHoareTripleChecker [40 Valid, 7949 Invalid, 0 Unknown, 0 Unchecked, 14601.32ms Time] [2021-11-03 00:50:12,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31531 states. [2021-11-03 00:50:13,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31531 to 31531. [2021-11-03 00:50:13,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31531 states, 31497 states have (on average 1.2960916912721847) internal successors, (40823), 31530 states have internal predecessors, (40823), 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) [2021-11-03 00:50:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31531 states to 31531 states and 40823 transitions. [2021-11-03 00:50:13,200 INFO L78 Accepts]: Start accepts. Automaton has 31531 states and 40823 transitions. Word has length 83 [2021-11-03 00:50:13,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:50:13,200 INFO L470 AbstractCegarLoop]: Abstraction has 31531 states and 40823 transitions. [2021-11-03 00:50:13,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-03 00:50:13,201 INFO L276 IsEmpty]: Start isEmpty. Operand 31531 states and 40823 transitions. [2021-11-03 00:50:13,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-03 00:50:13,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:50:13,205 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] [2021-11-03 00:50:13,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-03 00:50:13,206 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:50:13,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:50:13,206 INFO L85 PathProgramCache]: Analyzing trace with hash -816542856, now seen corresponding path program 1 times [2021-11-03 00:50:13,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:50:13,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411886549] [2021-11-03 00:50:13,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:50:13,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:50:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:50:13,418 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:50:13,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:50:13,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411886549] [2021-11-03 00:50:13,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411886549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:50:13,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:50:13,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:50:13,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82612550] [2021-11-03 00:50:13,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:50:13,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:50:13,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:50:13,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:50:13,422 INFO L87 Difference]: Start difference. First operand 31531 states and 40823 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-03 00:50:14,432 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:50:15,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:50:28,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:50:28,766 INFO L93 Difference]: Finished difference Result 31531 states and 40823 transitions. [2021-11-03 00:50:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:50:28,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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 85 [2021-11-03 00:50:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:50:28,820 INFO L225 Difference]: With dead ends: 31531 [2021-11-03 00:50:28,820 INFO L226 Difference]: Without dead ends: 31525 [2021-11-03 00:50:28,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.13ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:50:28,834 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3915 mSDsluCounter, 3892 mSDsCounter, 0 mSdLazyCounter, 7937 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12839.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.33ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14417.26ms IncrementalHoareTripleChecker+Time [2021-11-03 00:50:28,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3915 Valid, 0 Invalid, 7977 Unknown, 0 Unchecked, 27.33ms Time], IncrementalHoareTripleChecker [40 Valid, 7937 Invalid, 0 Unknown, 0 Unchecked, 14417.26ms Time] [2021-11-03 00:50:28,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31525 states. [2021-11-03 00:50:29,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31525 to 31525. [2021-11-03 00:50:29,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31525 states, 31494 states have (on average 1.2960246396138948) internal successors, (40817), 31524 states have internal predecessors, (40817), 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) [2021-11-03 00:50:29,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31525 states to 31525 states and 40817 transitions. [2021-11-03 00:50:29,679 INFO L78 Accepts]: Start accepts. Automaton has 31525 states and 40817 transitions. Word has length 85 [2021-11-03 00:50:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:50:29,679 INFO L470 AbstractCegarLoop]: Abstraction has 31525 states and 40817 transitions. [2021-11-03 00:50:29,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-03 00:50:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 31525 states and 40817 transitions. [2021-11-03 00:50:29,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-03 00:50:29,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:50:29,684 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] [2021-11-03 00:50:29,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-03 00:50:29,685 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:50:29,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:50:29,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1281479611, now seen corresponding path program 1 times [2021-11-03 00:50:29,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:50:29,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139669826] [2021-11-03 00:50:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:50:29,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:50:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:50:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:50:29,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:50:29,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139669826] [2021-11-03 00:50:29,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139669826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:50:29,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:50:29,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:50:29,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686549406] [2021-11-03 00:50:29,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:50:29,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:50:29,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:50:29,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:50:29,895 INFO L87 Difference]: Start difference. First operand 31525 states and 40817 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) [2021-11-03 00:50:31,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:50:33,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:50:47,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:50:47,323 INFO L93 Difference]: Finished difference Result 31525 states and 40817 transitions. [2021-11-03 00:50:47,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:50:47,324 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 [2021-11-03 00:50:47,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:50:47,368 INFO L225 Difference]: With dead ends: 31525 [2021-11-03 00:50:47,368 INFO L226 Difference]: Without dead ends: 31519 [2021-11-03 00:50:47,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:50:47,380 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3827 mSDsluCounter, 3945 mSDsCounter, 0 mSdLazyCounter, 8001 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14839.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3827 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.21ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 8001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16429.36ms IncrementalHoareTripleChecker+Time [2021-11-03 00:50:47,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3827 Valid, 0 Invalid, 8045 Unknown, 0 Unchecked, 32.21ms Time], IncrementalHoareTripleChecker [44 Valid, 8001 Invalid, 0 Unknown, 0 Unchecked, 16429.36ms Time] [2021-11-03 00:50:47,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31519 states. [2021-11-03 00:50:48,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31519 to 31519. [2021-11-03 00:50:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31519 states, 31491 states have (on average 1.2959575751802102) internal successors, (40811), 31518 states have internal predecessors, (40811), 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) [2021-11-03 00:50:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31519 states to 31519 states and 40811 transitions. [2021-11-03 00:50:48,242 INFO L78 Accepts]: Start accepts. Automaton has 31519 states and 40811 transitions. Word has length 87 [2021-11-03 00:50:48,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:50:48,242 INFO L470 AbstractCegarLoop]: Abstraction has 31519 states and 40811 transitions. [2021-11-03 00:50:48,242 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) [2021-11-03 00:50:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 31519 states and 40811 transitions. [2021-11-03 00:50:48,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-03 00:50:48,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:50:48,246 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] [2021-11-03 00:50:48,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-03 00:50:48,246 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:50:48,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:50:48,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1153558402, now seen corresponding path program 1 times [2021-11-03 00:50:48,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:50:48,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46764650] [2021-11-03 00:50:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:50:48,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:50:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:50:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:50:48,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:50:48,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46764650] [2021-11-03 00:50:48,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46764650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:50:48,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:50:48,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:50:48,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928306516] [2021-11-03 00:50:48,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:50:48,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:50:48,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:50:48,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:50:48,434 INFO L87 Difference]: Start difference. First operand 31519 states and 40811 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) [2021-11-03 00:50:51,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:51:02,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:51:02,268 INFO L93 Difference]: Finished difference Result 31519 states and 40811 transitions. [2021-11-03 00:51:02,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:51:02,269 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 [2021-11-03 00:51:02,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:51:02,319 INFO L225 Difference]: With dead ends: 31519 [2021-11-03 00:51:02,320 INFO L226 Difference]: Without dead ends: 31513 [2021-11-03 00:51:02,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:51:02,333 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3899 mSDsluCounter, 3886 mSDsCounter, 0 mSdLazyCounter, 7913 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11396.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3899 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.48ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12809.58ms IncrementalHoareTripleChecker+Time [2021-11-03 00:51:02,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3899 Valid, 0 Invalid, 7953 Unknown, 0 Unchecked, 19.48ms Time], IncrementalHoareTripleChecker [40 Valid, 7913 Invalid, 0 Unknown, 0 Unchecked, 12809.58ms Time] [2021-11-03 00:51:02,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31513 states. [2021-11-03 00:51:03,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31513 to 31513. [2021-11-03 00:51:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31513 states, 31488 states have (on average 1.2958904979674797) internal successors, (40805), 31512 states have internal predecessors, (40805), 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) [2021-11-03 00:51:03,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31513 states to 31513 states and 40805 transitions. [2021-11-03 00:51:03,231 INFO L78 Accepts]: Start accepts. Automaton has 31513 states and 40805 transitions. Word has length 89 [2021-11-03 00:51:03,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:51:03,231 INFO L470 AbstractCegarLoop]: Abstraction has 31513 states and 40805 transitions. [2021-11-03 00:51:03,232 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) [2021-11-03 00:51:03,232 INFO L276 IsEmpty]: Start isEmpty. Operand 31513 states and 40805 transitions. [2021-11-03 00:51:03,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-03 00:51:03,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:51:03,235 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] [2021-11-03 00:51:03,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-03 00:51:03,235 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:51:03,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:51:03,236 INFO L85 PathProgramCache]: Analyzing trace with hash -467912255, now seen corresponding path program 1 times [2021-11-03 00:51:03,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:51:03,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823757857] [2021-11-03 00:51:03,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:51:03,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:51:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:51:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:51:03,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:51:03,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823757857] [2021-11-03 00:51:03,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823757857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:51:03,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:51:03,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:51:03,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045111163] [2021-11-03 00:51:03,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:51:03,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:51:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:51:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:51:03,421 INFO L87 Difference]: Start difference. First operand 31513 states and 40805 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) [2021-11-03 00:51:06,503 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:51:16,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:51:16,618 INFO L93 Difference]: Finished difference Result 31513 states and 40805 transitions. [2021-11-03 00:51:16,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:51:16,619 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 [2021-11-03 00:51:16,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:51:16,676 INFO L225 Difference]: With dead ends: 31513 [2021-11-03 00:51:16,676 INFO L226 Difference]: Without dead ends: 31507 [2021-11-03 00:51:16,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.54ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:51:16,690 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3866 mSDsluCounter, 3902 mSDsCounter, 0 mSdLazyCounter, 7924 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10840.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3866 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.21ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 7924 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12152.16ms IncrementalHoareTripleChecker+Time [2021-11-03 00:51:16,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3866 Valid, 0 Invalid, 7966 Unknown, 0 Unchecked, 17.21ms Time], IncrementalHoareTripleChecker [41 Valid, 7924 Invalid, 1 Unknown, 0 Unchecked, 12152.16ms Time] [2021-11-03 00:51:16,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31507 states. [2021-11-03 00:51:17,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31507 to 31507. [2021-11-03 00:51:17,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31507 states, 31485 states have (on average 1.29582340797205) internal successors, (40799), 31506 states have internal predecessors, (40799), 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) [2021-11-03 00:51:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31507 states to 31507 states and 40799 transitions. [2021-11-03 00:51:17,609 INFO L78 Accepts]: Start accepts. Automaton has 31507 states and 40799 transitions. Word has length 91 [2021-11-03 00:51:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:51:17,610 INFO L470 AbstractCegarLoop]: Abstraction has 31507 states and 40799 transitions. [2021-11-03 00:51:17,610 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) [2021-11-03 00:51:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 31507 states and 40799 transitions. [2021-11-03 00:51:17,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-03 00:51:17,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:51:17,613 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] [2021-11-03 00:51:17,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-03 00:51:17,614 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:51:17,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:51:17,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1308039044, now seen corresponding path program 1 times [2021-11-03 00:51:17,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:51:17,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108189498] [2021-11-03 00:51:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:51:17,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:51:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:51:17,776 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:51:17,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:51:17,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108189498] [2021-11-03 00:51:17,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108189498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:51:17,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:51:17,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:51:17,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59085740] [2021-11-03 00:51:17,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:51:17,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:51:17,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:51:17,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:51:17,779 INFO L87 Difference]: Start difference. First operand 31507 states and 40799 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) [2021-11-03 00:51:18,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:51:33,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:51:33,267 INFO L93 Difference]: Finished difference Result 31507 states and 40799 transitions. [2021-11-03 00:51:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:51:33,267 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 [2021-11-03 00:51:33,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:51:33,326 INFO L225 Difference]: With dead ends: 31507 [2021-11-03 00:51:33,326 INFO L226 Difference]: Without dead ends: 31501 [2021-11-03 00:51:33,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.74ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:51:33,342 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3883 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 7889 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12887.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3883 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.73ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14398.69ms IncrementalHoareTripleChecker+Time [2021-11-03 00:51:33,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3883 Valid, 0 Invalid, 7929 Unknown, 0 Unchecked, 27.73ms Time], IncrementalHoareTripleChecker [40 Valid, 7889 Invalid, 0 Unknown, 0 Unchecked, 14398.69ms Time] [2021-11-03 00:51:33,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31501 states. [2021-11-03 00:51:34,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31501 to 31501. [2021-11-03 00:51:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31501 states, 31482 states have (on average 1.2957563051902674) internal successors, (40793), 31500 states have internal predecessors, (40793), 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) [2021-11-03 00:51:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31501 states to 31501 states and 40793 transitions. [2021-11-03 00:51:34,337 INFO L78 Accepts]: Start accepts. Automaton has 31501 states and 40793 transitions. Word has length 93 [2021-11-03 00:51:34,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:51:34,337 INFO L470 AbstractCegarLoop]: Abstraction has 31501 states and 40793 transitions. [2021-11-03 00:51:34,337 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) [2021-11-03 00:51:34,338 INFO L276 IsEmpty]: Start isEmpty. Operand 31501 states and 40793 transitions. [2021-11-03 00:51:34,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-03 00:51:34,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:51:34,342 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] [2021-11-03 00:51:34,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-03 00:51:34,342 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:51:34,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:51:34,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1399746105, now seen corresponding path program 1 times [2021-11-03 00:51:34,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:51:34,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010685337] [2021-11-03 00:51:34,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:51:34,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:51:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:51:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:51:34,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:51:34,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010685337] [2021-11-03 00:51:34,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010685337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:51:34,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:51:34,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:51:34,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839399789] [2021-11-03 00:51:34,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:51:34,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:51:34,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:51:34,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:51:34,544 INFO L87 Difference]: Start difference. First operand 31501 states and 40793 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) [2021-11-03 00:51:35,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:51:37,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:51:52,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:51:52,198 INFO L93 Difference]: Finished difference Result 31501 states and 40793 transitions. [2021-11-03 00:51:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:51:52,198 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 [2021-11-03 00:51:52,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:51:52,261 INFO L225 Difference]: With dead ends: 31501 [2021-11-03 00:51:52,261 INFO L226 Difference]: Without dead ends: 31495 [2021-11-03 00:51:52,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.78ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:51:52,276 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3875 mSDsluCounter, 3877 mSDsCounter, 0 mSdLazyCounter, 7876 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14848.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.35ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7876 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16404.89ms IncrementalHoareTripleChecker+Time [2021-11-03 00:51:52,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3875 Valid, 0 Invalid, 7917 Unknown, 0 Unchecked, 33.35ms Time], IncrementalHoareTripleChecker [40 Valid, 7876 Invalid, 1 Unknown, 0 Unchecked, 16404.89ms Time] [2021-11-03 00:51:52,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31495 states. [2021-11-03 00:51:53,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31495 to 31495. [2021-11-03 00:51:53,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31495 states, 31479 states have (on average 1.295689189618476) internal successors, (40787), 31494 states have internal predecessors, (40787), 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) [2021-11-03 00:51:53,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31495 states to 31495 states and 40787 transitions. [2021-11-03 00:51:53,360 INFO L78 Accepts]: Start accepts. Automaton has 31495 states and 40787 transitions. Word has length 95 [2021-11-03 00:51:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:51:53,360 INFO L470 AbstractCegarLoop]: Abstraction has 31495 states and 40787 transitions. [2021-11-03 00:51:53,360 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) [2021-11-03 00:51:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 31495 states and 40787 transitions. [2021-11-03 00:51:53,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-03 00:51:53,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:51:53,364 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] [2021-11-03 00:51:53,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-03 00:51:53,365 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:51:53,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:51:53,365 INFO L85 PathProgramCache]: Analyzing trace with hash -831092598, now seen corresponding path program 1 times [2021-11-03 00:51:53,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:51:53,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058556057] [2021-11-03 00:51:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:51:53,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:51:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:51:53,556 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:51:53,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:51:53,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058556057] [2021-11-03 00:51:53,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058556057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:51:53,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:51:53,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:51:53,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333569525] [2021-11-03 00:51:53,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:51:53,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:51:53,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:51:53,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:51:53,558 INFO L87 Difference]: Start difference. First operand 31495 states and 40787 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) [2021-11-03 00:51:55,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:52:07,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:52:07,608 INFO L93 Difference]: Finished difference Result 31495 states and 40787 transitions. [2021-11-03 00:52:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:52:07,608 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 [2021-11-03 00:52:07,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:52:07,652 INFO L225 Difference]: With dead ends: 31495 [2021-11-03 00:52:07,653 INFO L226 Difference]: Without dead ends: 31489 [2021-11-03 00:52:07,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:52:07,666 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3867 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 7863 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11550.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.81ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 7863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12823.86ms IncrementalHoareTripleChecker+Time [2021-11-03 00:52:07,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3867 Valid, 0 Invalid, 7904 Unknown, 0 Unchecked, 24.81ms Time], IncrementalHoareTripleChecker [40 Valid, 7863 Invalid, 1 Unknown, 0 Unchecked, 12823.86ms Time] [2021-11-03 00:52:07,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31489 states. [2021-11-03 00:52:08,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31489 to 31489. [2021-11-03 00:52:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31489 states, 31476 states have (on average 1.2956220612530183) internal successors, (40781), 31488 states have internal predecessors, (40781), 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) [2021-11-03 00:52:08,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31489 states to 31489 states and 40781 transitions. [2021-11-03 00:52:08,776 INFO L78 Accepts]: Start accepts. Automaton has 31489 states and 40781 transitions. Word has length 97 [2021-11-03 00:52:08,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:52:08,777 INFO L470 AbstractCegarLoop]: Abstraction has 31489 states and 40781 transitions. [2021-11-03 00:52:08,777 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) [2021-11-03 00:52:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 31489 states and 40781 transitions. [2021-11-03 00:52:08,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-03 00:52:08,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:52:08,781 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:52:08,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-03 00:52:08,781 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:52:08,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:52:08,782 INFO L85 PathProgramCache]: Analyzing trace with hash 646095019, now seen corresponding path program 1 times [2021-11-03 00:52:08,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:52:08,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797357653] [2021-11-03 00:52:08,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:52:08,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:52:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:52:08,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:52:08,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:52:08,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797357653] [2021-11-03 00:52:08,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797357653] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:52:08,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:52:08,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:52:08,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642117444] [2021-11-03 00:52:08,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:52:08,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:52:08,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:52:08,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:52:08,931 INFO L87 Difference]: Start difference. First operand 31489 states and 40781 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-03 00:52:12,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:52:28,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:52:28,532 INFO L93 Difference]: Finished difference Result 60683 states and 78795 transitions. [2021-11-03 00:52:28,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:52:28,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 [2021-11-03 00:52:28,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:52:28,589 INFO L225 Difference]: With dead ends: 60683 [2021-11-03 00:52:28,589 INFO L226 Difference]: Without dead ends: 29270 [2021-11-03 00:52:28,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:52:28,629 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1163 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 8760 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16422.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.50ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 8760 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18178.08ms IncrementalHoareTripleChecker+Time [2021-11-03 00:52:28,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 0 Invalid, 8782 Unknown, 0 Unchecked, 29.50ms Time], IncrementalHoareTripleChecker [21 Valid, 8760 Invalid, 1 Unknown, 0 Unchecked, 18178.08ms Time] [2021-11-03 00:52:28,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29270 states. [2021-11-03 00:52:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29270 to 29185. [2021-11-03 00:52:29,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29185 states, 29172 states have (on average 1.2963458110516934) internal successors, (37817), 29184 states have internal predecessors, (37817), 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) [2021-11-03 00:52:29,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29185 states to 29185 states and 37817 transitions. [2021-11-03 00:52:29,847 INFO L78 Accepts]: Start accepts. Automaton has 29185 states and 37817 transitions. Word has length 97 [2021-11-03 00:52:29,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:52:29,847 INFO L470 AbstractCegarLoop]: Abstraction has 29185 states and 37817 transitions. [2021-11-03 00:52:29,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-03 00:52:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 29185 states and 37817 transitions. [2021-11-03 00:52:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-03 00:52:29,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:52:29,851 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] [2021-11-03 00:52:29,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-03 00:52:29,852 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:52:29,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:52:29,852 INFO L85 PathProgramCache]: Analyzing trace with hash 184081357, now seen corresponding path program 1 times [2021-11-03 00:52:29,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:52:29,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503097925] [2021-11-03 00:52:29,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:52:29,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:52:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:52:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 00:52:30,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:52:30,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503097925] [2021-11-03 00:52:30,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503097925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:52:30,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:52:30,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:52:30,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034000337] [2021-11-03 00:52:30,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:52:30,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:52:30,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:52:30,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:52:30,126 INFO L87 Difference]: Start difference. First operand 29185 states and 37817 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) [2021-11-03 00:52:32,171 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:52:47,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:52:47,994 INFO L93 Difference]: Finished difference Result 29185 states and 37817 transitions. [2021-11-03 00:52:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:52:47,994 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 [2021-11-03 00:52:47,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:52:48,047 INFO L225 Difference]: With dead ends: 29185 [2021-11-03 00:52:48,048 INFO L226 Difference]: Without dead ends: 28979 [2021-11-03 00:52:48,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:52:48,059 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3856 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 7851 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14967.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.52ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 7851 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16479.40ms IncrementalHoareTripleChecker+Time [2021-11-03 00:52:48,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3856 Valid, 0 Invalid, 7895 Unknown, 0 Unchecked, 38.52ms Time], IncrementalHoareTripleChecker [43 Valid, 7851 Invalid, 1 Unknown, 0 Unchecked, 16479.40ms Time] [2021-11-03 00:52:48,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28979 states. [2021-11-03 00:52:49,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28979 to 28979. [2021-11-03 00:52:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28979 states, 28969 states have (on average 1.296247713072595) internal successors, (37551), 28978 states have internal predecessors, (37551), 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) [2021-11-03 00:52:49,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28979 states to 28979 states and 37551 transitions. [2021-11-03 00:52:49,096 INFO L78 Accepts]: Start accepts. Automaton has 28979 states and 37551 transitions. Word has length 99 [2021-11-03 00:52:49,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:52:49,096 INFO L470 AbstractCegarLoop]: Abstraction has 28979 states and 37551 transitions. [2021-11-03 00:52:49,096 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) [2021-11-03 00:52:49,097 INFO L276 IsEmpty]: Start isEmpty. Operand 28979 states and 37551 transitions. [2021-11-03 00:52:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-03 00:52:49,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:52:49,103 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:52:49,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-03 00:52:49,103 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:52:49,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:52:49,104 INFO L85 PathProgramCache]: Analyzing trace with hash -242047824, now seen corresponding path program 1 times [2021-11-03 00:52:49,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:52:49,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894355222] [2021-11-03 00:52:49,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:52:49,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:52:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:52:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:52:49,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:52:49,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894355222] [2021-11-03 00:52:49,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894355222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:52:49,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:52:49,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:52:49,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588131283] [2021-11-03 00:52:49,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:52:49,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:52:49,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:52:49,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:52:49,282 INFO L87 Difference]: Start difference. First operand 28979 states and 37551 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2021-11-03 00:52:50,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:52:52,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:53:11,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:53:11,071 INFO L93 Difference]: Finished difference Result 63202 states and 82096 transitions. [2021-11-03 00:53:11,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:53:11,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 129 [2021-11-03 00:53:11,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:53:11,125 INFO L225 Difference]: With dead ends: 63202 [2021-11-03 00:53:11,125 INFO L226 Difference]: Without dead ends: 34397 [2021-11-03 00:53:11,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:53:11,154 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1070 mSDsluCounter, 3783 mSDsCounter, 0 mSdLazyCounter, 8767 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18116.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.09ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 8767 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20003.38ms IncrementalHoareTripleChecker+Time [2021-11-03 00:53:11,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 0 Invalid, 8783 Unknown, 0 Unchecked, 34.09ms Time], IncrementalHoareTripleChecker [15 Valid, 8767 Invalid, 1 Unknown, 0 Unchecked, 20003.38ms Time] [2021-11-03 00:53:11,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34397 states. [2021-11-03 00:53:12,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34397 to 34361. [2021-11-03 00:53:12,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34361 states, 34351 states have (on average 1.2968181421210445) internal successors, (44547), 34360 states have internal predecessors, (44547), 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) [2021-11-03 00:53:12,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34361 states to 34361 states and 44547 transitions. [2021-11-03 00:53:12,285 INFO L78 Accepts]: Start accepts. Automaton has 34361 states and 44547 transitions. Word has length 129 [2021-11-03 00:53:12,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:53:12,285 INFO L470 AbstractCegarLoop]: Abstraction has 34361 states and 44547 transitions. [2021-11-03 00:53:12,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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) [2021-11-03 00:53:12,286 INFO L276 IsEmpty]: Start isEmpty. Operand 34361 states and 44547 transitions. [2021-11-03 00:53:12,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-03 00:53:12,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:53:12,291 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:53:12,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-03 00:53:12,292 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:53:12,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:53:12,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1927563945, now seen corresponding path program 1 times [2021-11-03 00:53:12,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:53:12,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842085872] [2021-11-03 00:53:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:53:12,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:53:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:53:12,446 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 00:53:12,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:53:12,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842085872] [2021-11-03 00:53:12,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842085872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:53:12,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:53:12,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:53:12,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948473704] [2021-11-03 00:53:12,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:53:12,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:53:12,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:53:12,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:53:12,450 INFO L87 Difference]: Start difference. First operand 34361 states and 44547 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-11-03 00:53:13,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:53:14,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:53:31,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:53:31,094 INFO L93 Difference]: Finished difference Result 73918 states and 95992 transitions. [2021-11-03 00:53:31,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:53:31,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 166 [2021-11-03 00:53:31,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:53:31,170 INFO L225 Difference]: With dead ends: 73918 [2021-11-03 00:53:31,170 INFO L226 Difference]: Without dead ends: 39638 [2021-11-03 00:53:31,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.91ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:53:31,215 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1064 mSDsluCounter, 3796 mSDsCounter, 0 mSdLazyCounter, 8777 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14941.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.56ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 8777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16700.37ms IncrementalHoareTripleChecker+Time [2021-11-03 00:53:31,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 0 Invalid, 8790 Unknown, 0 Unchecked, 26.56ms Time], IncrementalHoareTripleChecker [13 Valid, 8777 Invalid, 0 Unknown, 0 Unchecked, 16700.37ms Time] [2021-11-03 00:53:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39638 states. [2021-11-03 00:53:32,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39638 to 39602. [2021-11-03 00:53:32,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39602 states, 39592 states have (on average 1.2974843402707619) internal successors, (51370), 39601 states have internal predecessors, (51370), 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) [2021-11-03 00:53:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39602 states to 39602 states and 51370 transitions. [2021-11-03 00:53:32,720 INFO L78 Accepts]: Start accepts. Automaton has 39602 states and 51370 transitions. Word has length 166 [2021-11-03 00:53:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:53:32,720 INFO L470 AbstractCegarLoop]: Abstraction has 39602 states and 51370 transitions. [2021-11-03 00:53:32,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-11-03 00:53:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 39602 states and 51370 transitions. [2021-11-03 00:53:32,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-03 00:53:32,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:53:32,727 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:53:32,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-03 00:53:32,727 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:53:32,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:53:32,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1151249625, now seen corresponding path program 1 times [2021-11-03 00:53:32,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:53:32,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861067238] [2021-11-03 00:53:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:53:32,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:53:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:53:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 00:53:32,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:53:32,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861067238] [2021-11-03 00:53:32,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861067238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:53:32,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:53:32,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:53:32,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020018736] [2021-11-03 00:53:32,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:53:32,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:53:32,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:53:32,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:53:32,890 INFO L87 Difference]: Start difference. First operand 39602 states and 51370 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-11-03 00:53:35,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:53:52,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:53:52,820 INFO L93 Difference]: Finished difference Result 84436 states and 109710 transitions. [2021-11-03 00:53:52,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:53:52,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 166 [2021-11-03 00:53:52,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:53:52,908 INFO L225 Difference]: With dead ends: 84436 [2021-11-03 00:53:52,908 INFO L226 Difference]: Without dead ends: 45008 [2021-11-03 00:53:52,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.07ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:53:52,952 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1700 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 8147 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15878.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.34ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 8147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17855.96ms IncrementalHoareTripleChecker+Time [2021-11-03 00:53:52,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1700 Valid, 0 Invalid, 8163 Unknown, 0 Unchecked, 32.34ms Time], IncrementalHoareTripleChecker [16 Valid, 8147 Invalid, 0 Unknown, 0 Unchecked, 17855.96ms Time] [2021-11-03 00:53:52,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45008 states. [2021-11-03 00:53:54,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45008 to 44972. [2021-11-03 00:53:54,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44972 states, 44962 states have (on average 1.29785151906054) internal successors, (58354), 44971 states have internal predecessors, (58354), 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) [2021-11-03 00:53:54,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44972 states to 44972 states and 58354 transitions. [2021-11-03 00:53:54,715 INFO L78 Accepts]: Start accepts. Automaton has 44972 states and 58354 transitions. Word has length 166 [2021-11-03 00:53:54,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:53:54,715 INFO L470 AbstractCegarLoop]: Abstraction has 44972 states and 58354 transitions. [2021-11-03 00:53:54,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-11-03 00:53:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 44972 states and 58354 transitions. [2021-11-03 00:53:54,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-03 00:53:54,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:53:54,723 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:53:54,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-03 00:53:54,723 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:53:54,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:53:54,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2074869977, now seen corresponding path program 1 times [2021-11-03 00:53:54,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:53:54,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308138763] [2021-11-03 00:53:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:53:54,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:53:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:53:54,911 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-03 00:53:54,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:53:54,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308138763] [2021-11-03 00:53:54,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308138763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:53:54,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:53:54,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:53:54,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100955345] [2021-11-03 00:53:54,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:53:54,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:53:54,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:53:54,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:53:54,913 INFO L87 Difference]: Start difference. First operand 44972 states and 58354 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-11-03 00:53:56,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:53:57,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:54:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:54:10,223 INFO L93 Difference]: Finished difference Result 95152 states and 123630 transitions. [2021-11-03 00:54:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:54:10,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 201 [2021-11-03 00:54:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:54:10,322 INFO L225 Difference]: With dead ends: 95152 [2021-11-03 00:54:10,322 INFO L226 Difference]: Without dead ends: 50354 [2021-11-03 00:54:10,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:10,371 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1067 mSDsluCounter, 3794 mSDsCounter, 0 mSdLazyCounter, 8253 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11892.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.02ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 8253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13391.19ms IncrementalHoareTripleChecker+Time [2021-11-03 00:54:10,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1067 Valid, 0 Invalid, 8265 Unknown, 0 Unchecked, 16.02ms Time], IncrementalHoareTripleChecker [12 Valid, 8253 Invalid, 0 Unknown, 0 Unchecked, 13391.19ms Time] [2021-11-03 00:54:10,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50354 states. [2021-11-03 00:54:12,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50354 to 50318. [2021-11-03 00:54:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50318 states, 50308 states have (on average 1.2982825793114414) internal successors, (65314), 50317 states have internal predecessors, (65314), 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) [2021-11-03 00:54:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50318 states to 50318 states and 65314 transitions. [2021-11-03 00:54:12,391 INFO L78 Accepts]: Start accepts. Automaton has 50318 states and 65314 transitions. Word has length 201 [2021-11-03 00:54:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:54:12,391 INFO L470 AbstractCegarLoop]: Abstraction has 50318 states and 65314 transitions. [2021-11-03 00:54:12,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-11-03 00:54:12,391 INFO L276 IsEmpty]: Start isEmpty. Operand 50318 states and 65314 transitions. [2021-11-03 00:54:12,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-03 00:54:12,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:54:12,399 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:54:12,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-03 00:54:12,399 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:54:12,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:54:12,399 INFO L85 PathProgramCache]: Analyzing trace with hash 858716251, now seen corresponding path program 1 times [2021-11-03 00:54:12,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:54:12,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437970770] [2021-11-03 00:54:12,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:54:12,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:54:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:54:12,758 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-03 00:54:12,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:54:12,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437970770] [2021-11-03 00:54:12,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437970770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:54:12,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:54:12,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:54:12,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130109570] [2021-11-03 00:54:12,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:54:12,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:54:12,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:54:12,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:12,760 INFO L87 Difference]: Start difference. First operand 50318 states and 65314 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-11-03 00:54:15,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:54:28,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:54:28,875 INFO L93 Difference]: Finished difference Result 105856 states and 137574 transitions. [2021-11-03 00:54:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:54:28,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 201 [2021-11-03 00:54:28,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:54:28,975 INFO L225 Difference]: With dead ends: 105856 [2021-11-03 00:54:28,975 INFO L226 Difference]: Without dead ends: 55712 [2021-11-03 00:54:29,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:54:29,026 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1076 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 8771 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12097.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.04ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 8771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13773.74ms IncrementalHoareTripleChecker+Time [2021-11-03 00:54:29,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 0 Invalid, 8784 Unknown, 0 Unchecked, 18.04ms Time], IncrementalHoareTripleChecker [13 Valid, 8771 Invalid, 0 Unknown, 0 Unchecked, 13773.74ms Time] [2021-11-03 00:54:29,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55712 states. [2021-11-03 00:54:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55712 to 55676. [2021-11-03 00:54:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55676 states, 55666 states have (on average 1.2985664498976035) internal successors, (72286), 55675 states have internal predecessors, (72286), 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) [2021-11-03 00:54:31,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55676 states to 55676 states and 72286 transitions. [2021-11-03 00:54:31,178 INFO L78 Accepts]: Start accepts. Automaton has 55676 states and 72286 transitions. Word has length 201 [2021-11-03 00:54:31,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:54:31,178 INFO L470 AbstractCegarLoop]: Abstraction has 55676 states and 72286 transitions. [2021-11-03 00:54:31,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-11-03 00:54:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 55676 states and 72286 transitions. [2021-11-03 00:54:31,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-03 00:54:31,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:54:31,187 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:54:31,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-03 00:54:31,187 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:54:31,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:54:31,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1760550403, now seen corresponding path program 1 times [2021-11-03 00:54:31,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:54:31,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954219064] [2021-11-03 00:54:31,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:54:31,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:54:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:54:31,380 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-03 00:54:31,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:54:31,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954219064] [2021-11-03 00:54:31,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954219064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:54:31,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:54:31,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 00:54:31,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362941974] [2021-11-03 00:54:31,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:54:31,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:54:31,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:54:31,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:54:31,382 INFO L87 Difference]: Start difference. First operand 55676 states and 72286 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2021-11-03 00:54:34,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:55:10,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:55:10,440 INFO L93 Difference]: Finished difference Result 171702 states and 223034 transitions. [2021-11-03 00:55:10,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 00:55:10,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 228 [2021-11-03 00:55:10,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:55:10,685 INFO L225 Difference]: With dead ends: 171702 [2021-11-03 00:55:10,686 INFO L226 Difference]: Without dead ends: 116200 [2021-11-03 00:55:10,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.38ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:55:10,761 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 6558 mSDsluCounter, 10239 mSDsCounter, 0 mSdLazyCounter, 17796 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30942.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6558 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.63ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17796 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34283.85ms IncrementalHoareTripleChecker+Time [2021-11-03 00:55:10,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6558 Valid, 0 Invalid, 17804 Unknown, 0 Unchecked, 87.63ms Time], IncrementalHoareTripleChecker [7 Valid, 17796 Invalid, 1 Unknown, 0 Unchecked, 34283.85ms Time] [2021-11-03 00:55:10,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116200 states. [2021-11-03 00:55:13,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116200 to 60950. [2021-11-03 00:55:13,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60950 states, 60940 states have (on average 1.2992123400065638) internal successors, (79174), 60949 states have internal predecessors, (79174), 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) [2021-11-03 00:55:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60950 states to 60950 states and 79174 transitions. [2021-11-03 00:55:14,086 INFO L78 Accepts]: Start accepts. Automaton has 60950 states and 79174 transitions. Word has length 228 [2021-11-03 00:55:14,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:55:14,086 INFO L470 AbstractCegarLoop]: Abstraction has 60950 states and 79174 transitions. [2021-11-03 00:55:14,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2021-11-03 00:55:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 60950 states and 79174 transitions. [2021-11-03 00:55:14,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-03 00:55:14,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:55:14,101 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:55:14,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-03 00:55:14,101 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:55:14,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:55:14,102 INFO L85 PathProgramCache]: Analyzing trace with hash -325378439, now seen corresponding path program 1 times [2021-11-03 00:55:14,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:55:14,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577146038] [2021-11-03 00:55:14,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:55:14,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:55:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:55:14,315 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-03 00:55:14,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:55:14,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577146038] [2021-11-03 00:55:14,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577146038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:55:14,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:55:14,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 00:55:14,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974964340] [2021-11-03 00:55:14,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:55:14,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:55:14,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:55:14,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:55:14,319 INFO L87 Difference]: Start difference. First operand 60950 states and 79174 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2021-11-03 00:55:15,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:55:17,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:55:19,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:55:56,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:55:56,528 INFO L93 Difference]: Finished difference Result 182310 states and 236930 transitions. [2021-11-03 00:55:56,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 00:55:56,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 229 [2021-11-03 00:55:56,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:55:56,969 INFO L225 Difference]: With dead ends: 182310 [2021-11-03 00:55:56,969 INFO L226 Difference]: Without dead ends: 121534 [2021-11-03 00:55:57,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.41ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:55:57,062 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 6362 mSDsluCounter, 10833 mSDsCounter, 0 mSdLazyCounter, 18299 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33438.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6362 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 18312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.23ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 18299 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36796.77ms IncrementalHoareTripleChecker+Time [2021-11-03 00:55:57,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6362 Valid, 0 Invalid, 18312 Unknown, 0 Unchecked, 87.23ms Time], IncrementalHoareTripleChecker [12 Valid, 18299 Invalid, 1 Unknown, 0 Unchecked, 36796.77ms Time] [2021-11-03 00:55:57,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121534 states. [2021-11-03 00:56:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121534 to 66284. [2021-11-03 00:56:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66284 states, 66274 states have (on average 1.299483960527507) internal successors, (86122), 66283 states have internal predecessors, (86122), 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) [2021-11-03 00:56:00,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66284 states to 66284 states and 86122 transitions. [2021-11-03 00:56:00,548 INFO L78 Accepts]: Start accepts. Automaton has 66284 states and 86122 transitions. Word has length 229 [2021-11-03 00:56:00,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:56:00,548 INFO L470 AbstractCegarLoop]: Abstraction has 66284 states and 86122 transitions. [2021-11-03 00:56:00,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2021-11-03 00:56:00,548 INFO L276 IsEmpty]: Start isEmpty. Operand 66284 states and 86122 transitions. [2021-11-03 00:56:00,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-03 00:56:00,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:56:00,558 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:56:00,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-03 00:56:00,558 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:56:00,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:56:00,559 INFO L85 PathProgramCache]: Analyzing trace with hash -349662204, now seen corresponding path program 1 times [2021-11-03 00:56:00,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:56:00,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394515208] [2021-11-03 00:56:00,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:56:00,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:56:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:56:00,768 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-03 00:56:00,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:56:00,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394515208] [2021-11-03 00:56:00,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394515208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:56:00,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:56:00,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 00:56:00,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402745864] [2021-11-03 00:56:00,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:56:00,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:56:00,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:56:00,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:56:00,770 INFO L87 Difference]: Start difference. First operand 66284 states and 86122 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2021-11-03 00:56:02,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:03,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:05,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:56:37,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:56:37,165 INFO L93 Difference]: Finished difference Result 192966 states and 250838 transitions. [2021-11-03 00:56:37,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 00:56:37,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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 230 [2021-11-03 00:56:37,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:56:37,579 INFO L225 Difference]: With dead ends: 192966 [2021-11-03 00:56:37,579 INFO L226 Difference]: Without dead ends: 126856 [2021-11-03 00:56:37,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.87ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:56:37,681 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5483 mSDsluCounter, 11325 mSDsCounter, 0 mSdLazyCounter, 19428 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27039.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5483 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 55.21ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30131.79ms IncrementalHoareTripleChecker+Time [2021-11-03 00:56:37,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5483 Valid, 0 Invalid, 19443 Unknown, 0 Unchecked, 55.21ms Time], IncrementalHoareTripleChecker [14 Valid, 19428 Invalid, 1 Unknown, 0 Unchecked, 30131.79ms Time] [2021-11-03 00:56:37,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126856 states. [2021-11-03 00:56:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126856 to 71606. [2021-11-03 00:56:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71606 states, 71596 states have (on average 1.299765350019554) internal successors, (93058), 71605 states have internal predecessors, (93058), 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) [2021-11-03 00:56:41,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71606 states to 71606 states and 93058 transitions. [2021-11-03 00:56:41,363 INFO L78 Accepts]: Start accepts. Automaton has 71606 states and 93058 transitions. Word has length 230 [2021-11-03 00:56:41,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:56:41,364 INFO L470 AbstractCegarLoop]: Abstraction has 71606 states and 93058 transitions. [2021-11-03 00:56:41,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2021-11-03 00:56:41,364 INFO L276 IsEmpty]: Start isEmpty. Operand 71606 states and 93058 transitions. [2021-11-03 00:56:41,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-03 00:56:41,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:56:41,376 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:56:41,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-03 00:56:41,377 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:56:41,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:56:41,377 INFO L85 PathProgramCache]: Analyzing trace with hash 725462497, now seen corresponding path program 1 times [2021-11-03 00:56:41,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:56:41,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418729775] [2021-11-03 00:56:41,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:56:41,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:56:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:56:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-03 00:56:41,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:56:41,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418729775] [2021-11-03 00:56:41,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418729775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:56:41,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:56:41,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:56:41,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724080596] [2021-11-03 00:56:41,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:56:41,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:56:41,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:56:41,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:56:41,546 INFO L87 Difference]: Start difference. First operand 71606 states and 93058 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-11-03 00:56:44,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:57:04,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:57:04,254 INFO L93 Difference]: Finished difference Result 148300 states and 192799 transitions. [2021-11-03 00:57:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:57:04,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 241 [2021-11-03 00:57:04,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:57:04,384 INFO L225 Difference]: With dead ends: 148300 [2021-11-03 00:57:04,384 INFO L226 Difference]: Without dead ends: 76868 [2021-11-03 00:57:04,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:57:04,451 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1440 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 8388 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16613.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.47ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18547.04ms IncrementalHoareTripleChecker+Time [2021-11-03 00:57:04,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 0 Invalid, 8391 Unknown, 0 Unchecked, 30.47ms Time], IncrementalHoareTripleChecker [2 Valid, 8388 Invalid, 1 Unknown, 0 Unchecked, 18547.04ms Time] [2021-11-03 00:57:04,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76868 states. [2021-11-03 00:57:07,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76868 to 76805. [2021-11-03 00:57:07,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76805 states, 76795 states have (on average 1.3004883130412137) internal successors, (99871), 76804 states have internal predecessors, (99871), 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) [2021-11-03 00:57:08,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76805 states to 76805 states and 99871 transitions. [2021-11-03 00:57:08,047 INFO L78 Accepts]: Start accepts. Automaton has 76805 states and 99871 transitions. Word has length 241 [2021-11-03 00:57:08,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:57:08,047 INFO L470 AbstractCegarLoop]: Abstraction has 76805 states and 99871 transitions. [2021-11-03 00:57:08,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-11-03 00:57:08,047 INFO L276 IsEmpty]: Start isEmpty. Operand 76805 states and 99871 transitions. [2021-11-03 00:57:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-03 00:57:08,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:57:08,057 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:57:08,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-03 00:57:08,057 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-03 00:57:08,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:57:08,058 INFO L85 PathProgramCache]: Analyzing trace with hash -203137482, now seen corresponding path program 1 times [2021-11-03 00:57:08,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:57:08,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954652081] [2021-11-03 00:57:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:57:08,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:57:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:57:08,230 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 75 proven. 15 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-03 00:57:08,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:57:08,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954652081] [2021-11-03 00:57:08,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954652081] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 00:57:08,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808550002] [2021-11-03 00:57:08,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:57:08,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 00:57:08,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 00:57:08,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 00:57:08,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 00:57:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:57:09,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 3581 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 00:57:09,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 00:57:09,874 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-03 00:57:09,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 00:57:09,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808550002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:57:09,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-03 00:57:09,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-03 00:57:09,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711866225] [2021-11-03 00:57:09,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:57:09,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:57:09,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:57:09,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:57:09,877 INFO L87 Difference]: Start difference. First operand 76805 states and 99871 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2021-11-03 00:57:12,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:57:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:57:28,310 INFO L93 Difference]: Finished difference Result 158866 states and 206759 transitions. [2021-11-03 00:57:28,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:57:28,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 248 [2021-11-03 00:57:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:57:28,460 INFO L225 Difference]: With dead ends: 158866 [2021-11-03 00:57:28,460 INFO L226 Difference]: Without dead ends: 82235 [2021-11-03 00:57:28,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.88ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:57:28,550 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1752 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 7401 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12653.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.73ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 7401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14290.81ms IncrementalHoareTripleChecker+Time [2021-11-03 00:57:28,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1752 Valid, 0 Invalid, 7429 Unknown, 0 Unchecked, 19.73ms Time], IncrementalHoareTripleChecker [27 Valid, 7401 Invalid, 1 Unknown, 0 Unchecked, 14290.81ms Time] [2021-11-03 00:57:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82235 states.