./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 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-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-5f08f0f [2021-11-05 20:51:02,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:51:02,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:51:02,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:51:02,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:51:02,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:51:02,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:51:02,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:51:02,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:51:02,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:51:02,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:51:02,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:51:02,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:51:02,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:51:02,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:51:02,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:51:02,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:51:02,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:51:02,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:51:02,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:51:02,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:51:02,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:51:02,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:51:02,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:51:02,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:51:02,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:51:02,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:51:02,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:51:02,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:51:02,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:51:02,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:51:02,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:51:02,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:51:02,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:51:02,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:51:02,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:51:02,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:51:02,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:51:02,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:51:02,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:51:02,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:51:02,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:51:02,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:51:02,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:51:02,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:51:02,336 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:51:02,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:51:02,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:51:02,337 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:51:02,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:51:02,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:51:02,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:51:02,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:51:02,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:51:02,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:51:02,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:51:02,339 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:51:02,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:51:02,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:51:02,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:51:02,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:51:02,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:51:02,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:51:02,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:51:02,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:51:02,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:51:02,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:51:02,340 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:51:02,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:51:02,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:51:02,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:51:02,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2021-11-05 20:51:02,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:51:02,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:51:02,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:51:02,615 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:51:02,616 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:51:02,617 INFO L432 ainManager$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 [2021-11-05 20:51:02,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2906e526c/c6a8fc56ba4a4ae49d750da6275e9554/FLAG53d3eb56c [2021-11-05 20:51:03,282 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:51:03,283 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 [2021-11-05 20:51:03,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2906e526c/c6a8fc56ba4a4ae49d750da6275e9554/FLAG53d3eb56c [2021-11-05 20:51:03,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2906e526c/c6a8fc56ba4a4ae49d750da6275e9554 [2021-11-05 20:51:03,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:51:03,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:51:03,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:51:03,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:51:03,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:51:03,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:51:03" (1/1) ... [2021-11-05 20:51:03,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4028383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:03, skipping insertion in model container [2021-11-05 20:51:03,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:51:03" (1/1) ... [2021-11-05 20:51:03,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:51:03,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:51:05,246 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] [2021-11-05 20:51:05,248 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] [2021-11-05 20:51:05,249 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] [2021-11-05 20:51:05,249 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] [2021-11-05 20:51:05,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:51:05,316 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:51:05,566 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] [2021-11-05 20:51:05,566 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] [2021-11-05 20:51:05,566 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] [2021-11-05 20:51:05,567 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] [2021-11-05 20:51:05,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:51:05,785 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:51:05,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05 WrapperNode [2021-11-05 20:51:05,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:51:05,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:51:05,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:51:05,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:51:05,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:05,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:06,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:51:06,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:51:06,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:51:06,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:51:06,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:06,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:06,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:06,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:06,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:06,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:06,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:06,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:51:06,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:51:06,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:51:06,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:51:06,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (1/1) ... [2021-11-05 20:51:06,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:51:06,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:51:06,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 20:51:06,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 20:51:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 20:51:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:51:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:51:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:51:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:51:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:51:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:51:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:51:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:51:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:51:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:51:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:51:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:51:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:51:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:51:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:51:16,788 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:51:16,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:51:16,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:51:16,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:51:16,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:51:16,789 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:51:16,808 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:51:16,808 INFO L299 CfgBuilder]: Removed 3504 assume(true) statements. [2021-11-05 20:51:16,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:51:16 BoogieIcfgContainer [2021-11-05 20:51:16,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:51:16,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:51:16,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:51:16,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:51:16,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:51:03" (1/3) ... [2021-11-05 20:51:16,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c317492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:51:16, skipping insertion in model container [2021-11-05 20:51:16,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:51:05" (2/3) ... [2021-11-05 20:51:16,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c317492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:51:16, skipping insertion in model container [2021-11-05 20:51:16,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:51:16" (3/3) ... [2021-11-05 20:51:16,818 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2021-11-05 20:51:16,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:51:16,821 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2021-11-05 20:51:16,871 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:51:16,876 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 20:51:16,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2021-11-05 20:51:16,984 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) [2021-11-05 20:51:16,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 20:51:16,991 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:16,992 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] [2021-11-05 20:51:16,992 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)] === [2021-11-05 20:51:16,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:16,998 INFO L85 PathProgramCache]: Analyzing trace with hash -113139560, now seen corresponding path program 1 times [2021-11-05 20:51:17,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:17,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362774721] [2021-11-05 20:51:17,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:17,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:51:17,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:17,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362774721] [2021-11-05 20:51:17,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362774721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:17,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:17,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:17,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218120784] [2021-11-05 20:51:17,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:17,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:51:17,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:17,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:51:17,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:17,502 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) [2021-11-05 20:51:19,554 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 [] [2021-11-05 20:51:19,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:19,896 INFO L93 Difference]: Finished difference Result 9565 states and 12678 transitions. [2021-11-05 20:51:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:51:19,898 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 [2021-11-05 20:51:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:19,935 INFO L225 Difference]: With dead ends: 9565 [2021-11-05 20:51:19,935 INFO L226 Difference]: Without dead ends: 6084 [2021-11-05 20:51:19,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:19,951 INFO L933 BasicCegarLoop]: 4301 mSDtfsCounter, 3971 mSDsluCounter, 4253 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2073.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3971 SdHoareTripleChecker+Valid, 8554 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.10ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2176.43ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:19,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3971 Valid, 8554 Invalid, 34 Unknown, 0 Unchecked, 21.10ms Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2176.43ms Time] [2021-11-05 20:51:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2021-11-05 20:51:20,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 6064. [2021-11-05 20:51:20,129 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) [2021-11-05 20:51:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6064 states to 6064 states and 7740 transitions. [2021-11-05 20:51:20,149 INFO L78 Accepts]: Start accepts. Automaton has 6064 states and 7740 transitions. Word has length 45 [2021-11-05 20:51:20,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:20,150 INFO L470 AbstractCegarLoop]: Abstraction has 6064 states and 7740 transitions. [2021-11-05 20:51:20,150 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) [2021-11-05 20:51:20,151 INFO L276 IsEmpty]: Start isEmpty. Operand 6064 states and 7740 transitions. [2021-11-05 20:51:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-05 20:51:20,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:20,157 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] [2021-11-05 20:51:20,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:51:20,158 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)] === [2021-11-05 20:51:20,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1051115891, now seen corresponding path program 1 times [2021-11-05 20:51:20,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:20,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818665672] [2021-11-05 20:51:20,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:20,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:51:20,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:20,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818665672] [2021-11-05 20:51:20,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818665672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:20,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:20,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:20,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407679456] [2021-11-05 20:51:20,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:20,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:51:20,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:20,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:51:20,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:20,353 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) [2021-11-05 20:51:22,390 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:51:22,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:22,760 INFO L93 Difference]: Finished difference Result 16094 states and 20572 transitions. [2021-11-05 20:51:22,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:51:22,761 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 [2021-11-05 20:51:22,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:22,793 INFO L225 Difference]: With dead ends: 16094 [2021-11-05 20:51:22,793 INFO L226 Difference]: Without dead ends: 10106 [2021-11-05 20:51:22,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:22,805 INFO L933 BasicCegarLoop]: 4012 mSDtfsCounter, 3534 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2094.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3534 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.94ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2210.11ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:22,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3534 Valid, 7158 Invalid, 44 Unknown, 0 Unchecked, 10.94ms Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2210.11ms Time] [2021-11-05 20:51:22,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10106 states. [2021-11-05 20:51:22,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10106 to 9534. [2021-11-05 20:51:22,974 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) [2021-11-05 20:51:23,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9534 states to 9534 states and 12270 transitions. [2021-11-05 20:51:23,000 INFO L78 Accepts]: Start accepts. Automaton has 9534 states and 12270 transitions. Word has length 48 [2021-11-05 20:51:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:23,001 INFO L470 AbstractCegarLoop]: Abstraction has 9534 states and 12270 transitions. [2021-11-05 20:51:23,001 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) [2021-11-05 20:51:23,001 INFO L276 IsEmpty]: Start isEmpty. Operand 9534 states and 12270 transitions. [2021-11-05 20:51:23,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-05 20:51:23,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:23,003 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] [2021-11-05 20:51:23,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:51:23,003 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)] === [2021-11-05 20:51:23,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:23,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1663310419, now seen corresponding path program 1 times [2021-11-05 20:51:23,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:23,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508305724] [2021-11-05 20:51:23,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:23,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:51:23,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:23,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508305724] [2021-11-05 20:51:23,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508305724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:23,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:23,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:23,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125307398] [2021-11-05 20:51:23,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:23,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:51:23,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:23,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:51:23,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:23,125 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) [2021-11-05 20:51:25,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:51:25,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:25,709 INFO L93 Difference]: Finished difference Result 26848 states and 34562 transitions. [2021-11-05 20:51:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:51:25,710 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 [2021-11-05 20:51:25,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:25,767 INFO L225 Difference]: With dead ends: 26848 [2021-11-05 20:51:25,768 INFO L226 Difference]: Without dead ends: 17390 [2021-11-05 20:51:25,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:25,786 INFO L933 BasicCegarLoop]: 4014 mSDtfsCounter, 3401 mSDsluCounter, 3942 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2118.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3401 SdHoareTripleChecker+Valid, 7956 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.29ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2255.67ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:25,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3401 Valid, 7956 Invalid, 86 Unknown, 0 Unchecked, 9.29ms Time], IncrementalHoareTripleChecker [9 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 2255.67ms Time] [2021-11-05 20:51:25,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17390 states. [2021-11-05 20:51:26,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17390 to 16002. [2021-11-05 20:51:26,118 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) [2021-11-05 20:51:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16002 states to 16002 states and 20666 transitions. [2021-11-05 20:51:26,146 INFO L78 Accepts]: Start accepts. Automaton has 16002 states and 20666 transitions. Word has length 51 [2021-11-05 20:51:26,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:26,146 INFO L470 AbstractCegarLoop]: Abstraction has 16002 states and 20666 transitions. [2021-11-05 20:51:26,147 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) [2021-11-05 20:51:26,147 INFO L276 IsEmpty]: Start isEmpty. Operand 16002 states and 20666 transitions. [2021-11-05 20:51:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 20:51:26,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:26,153 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] [2021-11-05 20:51:26,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:51:26,153 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)] === [2021-11-05 20:51:26,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:26,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1943570088, now seen corresponding path program 1 times [2021-11-05 20:51:26,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:26,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833799222] [2021-11-05 20:51:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:26,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:51:26,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:26,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833799222] [2021-11-05 20:51:26,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833799222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:26,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:26,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:26,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42896386] [2021-11-05 20:51:26,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:26,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:51:26,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:26,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:51:26,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:26,308 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) [2021-11-05 20:51:28,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:51:28,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:28,735 INFO L93 Difference]: Finished difference Result 31940 states and 41269 transitions. [2021-11-05 20:51:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:51:28,736 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 [2021-11-05 20:51:28,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:28,780 INFO L225 Difference]: With dead ends: 31940 [2021-11-05 20:51:28,780 INFO L226 Difference]: Without dead ends: 23810 [2021-11-05 20:51:28,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:28,902 INFO L933 BasicCegarLoop]: 7742 mSDtfsCounter, 3724 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2054.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3724 SdHoareTripleChecker+Valid, 11740 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.64ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2193.52ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:28,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3724 Valid, 11740 Invalid, 30 Unknown, 0 Unchecked, 7.64ms Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2193.52ms Time] [2021-11-05 20:51:28,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23810 states. [2021-11-05 20:51:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23810 to 23790. [2021-11-05 20:51:29,265 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) [2021-11-05 20:51:29,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23790 states to 23790 states and 30768 transitions. [2021-11-05 20:51:29,300 INFO L78 Accepts]: Start accepts. Automaton has 23790 states and 30768 transitions. Word has length 74 [2021-11-05 20:51:29,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:29,302 INFO L470 AbstractCegarLoop]: Abstraction has 23790 states and 30768 transitions. [2021-11-05 20:51:29,302 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) [2021-11-05 20:51:29,302 INFO L276 IsEmpty]: Start isEmpty. Operand 23790 states and 30768 transitions. [2021-11-05 20:51:29,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 20:51:29,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:29,309 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] [2021-11-05 20:51:29,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:51:29,309 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)] === [2021-11-05 20:51:29,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:29,310 INFO L85 PathProgramCache]: Analyzing trace with hash 663706410, now seen corresponding path program 1 times [2021-11-05 20:51:29,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:29,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552787020] [2021-11-05 20:51:29,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:29,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:29,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:51:29,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:29,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552787020] [2021-11-05 20:51:29,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552787020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:29,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:29,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:29,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630320356] [2021-11-05 20:51:29,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:29,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:51:29,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:29,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:51:29,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:29,453 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) [2021-11-05 20:51:31,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:51:32,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:32,037 INFO L93 Difference]: Finished difference Result 47520 states and 61481 transitions. [2021-11-05 20:51:32,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:51:32,039 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 [2021-11-05 20:51:32,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:32,118 INFO L225 Difference]: With dead ends: 47520 [2021-11-05 20:51:32,119 INFO L226 Difference]: Without dead ends: 31602 [2021-11-05 20:51:32,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:32,150 INFO L933 BasicCegarLoop]: 7742 mSDtfsCounter, 3774 mSDsluCounter, 3949 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2061.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3774 SdHoareTripleChecker+Valid, 11691 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.48ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2182.13ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:32,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3774 Valid, 11691 Invalid, 32 Unknown, 0 Unchecked, 9.48ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2182.13ms Time] [2021-11-05 20:51:32,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31602 states. [2021-11-05 20:51:32,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31602 to 31561. [2021-11-05 20:51:32,606 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) [2021-11-05 20:51:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31561 states to 31561 states and 40853 transitions. [2021-11-05 20:51:32,656 INFO L78 Accepts]: Start accepts. Automaton has 31561 states and 40853 transitions. Word has length 74 [2021-11-05 20:51:32,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:32,656 INFO L470 AbstractCegarLoop]: Abstraction has 31561 states and 40853 transitions. [2021-11-05 20:51:32,656 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) [2021-11-05 20:51:32,657 INFO L276 IsEmpty]: Start isEmpty. Operand 31561 states and 40853 transitions. [2021-11-05 20:51:32,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 20:51:32,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:32,659 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] [2021-11-05 20:51:32,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:51:32,660 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)] === [2021-11-05 20:51:32,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:32,661 INFO L85 PathProgramCache]: Analyzing trace with hash 820923817, now seen corresponding path program 1 times [2021-11-05 20:51:32,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:32,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196313529] [2021-11-05 20:51:32,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:32,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:32,822 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:32,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:32,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196313529] [2021-11-05 20:51:32,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196313529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:32,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:32,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:32,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775582203] [2021-11-05 20:51:32,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:32,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:32,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:32,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:32,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:32,824 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) [2021-11-05 20:51:33,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:33,426 INFO L93 Difference]: Finished difference Result 31561 states and 40853 transitions. [2021-11-05 20:51:33,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:33,426 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 [2021-11-05 20:51:33,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:33,478 INFO L225 Difference]: With dead ends: 31561 [2021-11-05 20:51:33,479 INFO L226 Difference]: Without dead ends: 31555 [2021-11-05 20:51:33,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.02ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:33,494 INFO L933 BasicCegarLoop]: 4012 mSDtfsCounter, 3958 mSDsluCounter, 3907 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3958 SdHoareTripleChecker+Valid, 7919 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.75ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 140.79ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:33,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3958 Valid, 7919 Invalid, 115 Unknown, 0 Unchecked, 11.75ms Time], IncrementalHoareTripleChecker [37 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 140.79ms Time] [2021-11-05 20:51:33,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31555 states. [2021-11-05 20:51:34,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31555 to 31555. [2021-11-05 20:51:34,061 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) [2021-11-05 20:51:34,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31555 states to 31555 states and 40847 transitions. [2021-11-05 20:51:34,107 INFO L78 Accepts]: Start accepts. Automaton has 31555 states and 40847 transitions. Word has length 75 [2021-11-05 20:51:34,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:34,108 INFO L470 AbstractCegarLoop]: Abstraction has 31555 states and 40847 transitions. [2021-11-05 20:51:34,109 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) [2021-11-05 20:51:34,109 INFO L276 IsEmpty]: Start isEmpty. Operand 31555 states and 40847 transitions. [2021-11-05 20:51:34,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-05 20:51:34,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:34,111 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] [2021-11-05 20:51:34,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:51:34,112 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)] === [2021-11-05 20:51:34,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:34,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1366046868, now seen corresponding path program 1 times [2021-11-05 20:51:34,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:34,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512919837] [2021-11-05 20:51:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:34,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:34,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:34,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512919837] [2021-11-05 20:51:34,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512919837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:34,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:34,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:34,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543455648] [2021-11-05 20:51:34,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:34,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:34,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:34,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:34,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:34,364 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) [2021-11-05 20:51:34,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:34,830 INFO L93 Difference]: Finished difference Result 31555 states and 40847 transitions. [2021-11-05 20:51:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:34,830 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 [2021-11-05 20:51:34,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:34,881 INFO L225 Difference]: With dead ends: 31555 [2021-11-05 20:51:34,882 INFO L226 Difference]: Without dead ends: 31549 [2021-11-05 20:51:34,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.12ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:34,897 INFO L933 BasicCegarLoop]: 4006 mSDtfsCounter, 3947 mSDsluCounter, 3904 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 7910 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.36ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.13ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:34,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3947 Valid, 7910 Invalid, 115 Unknown, 0 Unchecked, 8.36ms Time], IncrementalHoareTripleChecker [40 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 106.13ms Time] [2021-11-05 20:51:34,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31549 states. [2021-11-05 20:51:35,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31549 to 31549. [2021-11-05 20:51:35,629 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) [2021-11-05 20:51:35,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31549 states to 31549 states and 40841 transitions. [2021-11-05 20:51:35,674 INFO L78 Accepts]: Start accepts. Automaton has 31549 states and 40841 transitions. Word has length 77 [2021-11-05 20:51:35,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:35,674 INFO L470 AbstractCegarLoop]: Abstraction has 31549 states and 40841 transitions. [2021-11-05 20:51:35,674 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) [2021-11-05 20:51:35,674 INFO L276 IsEmpty]: Start isEmpty. Operand 31549 states and 40841 transitions. [2021-11-05 20:51:35,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 20:51:35,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:35,680 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] [2021-11-05 20:51:35,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:51:35,681 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)] === [2021-11-05 20:51:35,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:35,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1489100207, now seen corresponding path program 1 times [2021-11-05 20:51:35,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:35,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825935064] [2021-11-05 20:51:35,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:35,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:35,878 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:35,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:35,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825935064] [2021-11-05 20:51:35,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825935064] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:35,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:35,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:35,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581293598] [2021-11-05 20:51:35,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:35,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:35,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:35,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:35,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:35,883 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) [2021-11-05 20:51:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:36,419 INFO L93 Difference]: Finished difference Result 31549 states and 40841 transitions. [2021-11-05 20:51:36,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:36,422 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 [2021-11-05 20:51:36,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:36,468 INFO L225 Difference]: With dead ends: 31549 [2021-11-05 20:51:36,468 INFO L226 Difference]: Without dead ends: 31543 [2021-11-05 20:51:36,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.27ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:36,481 INFO L933 BasicCegarLoop]: 4000 mSDtfsCounter, 3939 mSDsluCounter, 3901 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3939 SdHoareTripleChecker+Valid, 7901 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.21ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.70ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:36,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3939 Valid, 7901 Invalid, 112 Unknown, 0 Unchecked, 10.21ms Time], IncrementalHoareTripleChecker [40 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 92.70ms Time] [2021-11-05 20:51:36,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31543 states. [2021-11-05 20:51:37,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31543 to 31543. [2021-11-05 20:51:37,124 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) [2021-11-05 20:51:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31543 states to 31543 states and 40835 transitions. [2021-11-05 20:51:37,176 INFO L78 Accepts]: Start accepts. Automaton has 31543 states and 40835 transitions. Word has length 79 [2021-11-05 20:51:37,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:37,176 INFO L470 AbstractCegarLoop]: Abstraction has 31543 states and 40835 transitions. [2021-11-05 20:51:37,295 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) [2021-11-05 20:51:37,295 INFO L276 IsEmpty]: Start isEmpty. Operand 31543 states and 40835 transitions. [2021-11-05 20:51:37,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-05 20:51:37,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:37,298 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] [2021-11-05 20:51:37,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:51:37,298 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)] === [2021-11-05 20:51:37,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:37,299 INFO L85 PathProgramCache]: Analyzing trace with hash 801337458, now seen corresponding path program 1 times [2021-11-05 20:51:37,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:37,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258403791] [2021-11-05 20:51:37,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:37,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:37,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:37,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258403791] [2021-11-05 20:51:37,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258403791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:37,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:37,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:37,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357271542] [2021-11-05 20:51:37,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:37,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:37,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:37,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:37,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:37,445 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) [2021-11-05 20:51:38,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:38,142 INFO L93 Difference]: Finished difference Result 31543 states and 40835 transitions. [2021-11-05 20:51:38,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:38,143 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 [2021-11-05 20:51:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:38,197 INFO L225 Difference]: With dead ends: 31543 [2021-11-05 20:51:38,197 INFO L226 Difference]: Without dead ends: 31537 [2021-11-05 20:51:38,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.84ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:38,213 INFO L933 BasicCegarLoop]: 3994 mSDtfsCounter, 3931 mSDsluCounter, 3898 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3931 SdHoareTripleChecker+Valid, 7892 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.84ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.63ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:38,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3931 Valid, 7892 Invalid, 109 Unknown, 0 Unchecked, 9.84ms Time], IncrementalHoareTripleChecker [40 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 119.63ms Time] [2021-11-05 20:51:38,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31537 states. [2021-11-05 20:51:38,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31537 to 31537. [2021-11-05 20:51:38,923 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) [2021-11-05 20:51:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31537 states to 31537 states and 40829 transitions. [2021-11-05 20:51:38,971 INFO L78 Accepts]: Start accepts. Automaton has 31537 states and 40829 transitions. Word has length 81 [2021-11-05 20:51:38,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:38,971 INFO L470 AbstractCegarLoop]: Abstraction has 31537 states and 40829 transitions. [2021-11-05 20:51:38,971 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) [2021-11-05 20:51:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 31537 states and 40829 transitions. [2021-11-05 20:51:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-05 20:51:38,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:38,975 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] [2021-11-05 20:51:38,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:51:38,975 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)] === [2021-11-05 20:51:38,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:38,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1286299573, now seen corresponding path program 1 times [2021-11-05 20:51:38,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:38,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659105878] [2021-11-05 20:51:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:38,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:39,107 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:39,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:39,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659105878] [2021-11-05 20:51:39,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659105878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:39,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:39,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:39,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753146691] [2021-11-05 20:51:39,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:39,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:39,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:39,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:39,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:39,110 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) [2021-11-05 20:51:39,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:39,668 INFO L93 Difference]: Finished difference Result 31537 states and 40829 transitions. [2021-11-05 20:51:39,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:39,668 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 [2021-11-05 20:51:39,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:39,714 INFO L225 Difference]: With dead ends: 31537 [2021-11-05 20:51:39,714 INFO L226 Difference]: Without dead ends: 31531 [2021-11-05 20:51:39,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.15ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:39,728 INFO L933 BasicCegarLoop]: 3988 mSDtfsCounter, 3923 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3923 SdHoareTripleChecker+Valid, 7883 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.36ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.94ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:39,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3923 Valid, 7883 Invalid, 106 Unknown, 0 Unchecked, 7.36ms Time], IncrementalHoareTripleChecker [40 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 117.94ms Time] [2021-11-05 20:51:39,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31531 states. [2021-11-05 20:51:40,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31531 to 31531. [2021-11-05 20:51:40,426 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) [2021-11-05 20:51:40,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31531 states to 31531 states and 40823 transitions. [2021-11-05 20:51:40,472 INFO L78 Accepts]: Start accepts. Automaton has 31531 states and 40823 transitions. Word has length 83 [2021-11-05 20:51:40,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:40,472 INFO L470 AbstractCegarLoop]: Abstraction has 31531 states and 40823 transitions. [2021-11-05 20:51:40,472 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) [2021-11-05 20:51:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 31531 states and 40823 transitions. [2021-11-05 20:51:40,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 20:51:40,475 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:40,476 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] [2021-11-05 20:51:40,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 20:51:40,476 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)] === [2021-11-05 20:51:40,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:40,476 INFO L85 PathProgramCache]: Analyzing trace with hash -816542856, now seen corresponding path program 1 times [2021-11-05 20:51:40,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:40,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660475441] [2021-11-05 20:51:40,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:40,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:40,648 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:40,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:40,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660475441] [2021-11-05 20:51:40,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660475441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:40,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:40,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:40,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478434948] [2021-11-05 20:51:40,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:40,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:40,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:40,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:40,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:40,651 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) [2021-11-05 20:51:41,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:41,361 INFO L93 Difference]: Finished difference Result 31531 states and 40823 transitions. [2021-11-05 20:51:41,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:41,361 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 [2021-11-05 20:51:41,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:41,417 INFO L225 Difference]: With dead ends: 31531 [2021-11-05 20:51:41,418 INFO L226 Difference]: Without dead ends: 31525 [2021-11-05 20:51:41,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.43ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:41,439 INFO L933 BasicCegarLoop]: 3982 mSDtfsCounter, 3915 mSDsluCounter, 3892 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 7874 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.10ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.28ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:41,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3915 Valid, 7874 Invalid, 103 Unknown, 0 Unchecked, 7.10ms Time], IncrementalHoareTripleChecker [40 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 126.28ms Time] [2021-11-05 20:51:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31525 states. [2021-11-05 20:51:42,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31525 to 31525. [2021-11-05 20:51:42,256 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) [2021-11-05 20:51:42,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31525 states to 31525 states and 40817 transitions. [2021-11-05 20:51:42,302 INFO L78 Accepts]: Start accepts. Automaton has 31525 states and 40817 transitions. Word has length 85 [2021-11-05 20:51:42,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:42,302 INFO L470 AbstractCegarLoop]: Abstraction has 31525 states and 40817 transitions. [2021-11-05 20:51:42,302 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) [2021-11-05 20:51:42,303 INFO L276 IsEmpty]: Start isEmpty. Operand 31525 states and 40817 transitions. [2021-11-05 20:51:42,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-05 20:51:42,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:42,306 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:51:42,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 20:51:42,306 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)] === [2021-11-05 20:51:42,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:42,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1281479611, now seen corresponding path program 1 times [2021-11-05 20:51:42,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:42,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508329991] [2021-11-05 20:51:42,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:42,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:42,439 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:42,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:42,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508329991] [2021-11-05 20:51:42,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508329991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:42,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:42,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:42,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543776784] [2021-11-05 20:51:42,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:42,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:42,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:42,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:42,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:42,442 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) [2021-11-05 20:51:43,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:43,315 INFO L93 Difference]: Finished difference Result 31525 states and 40817 transitions. [2021-11-05 20:51:43,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-05 20:51:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:43,362 INFO L225 Difference]: With dead ends: 31525 [2021-11-05 20:51:43,362 INFO L226 Difference]: Without dead ends: 31519 [2021-11-05 20:51:43,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:43,375 INFO L933 BasicCegarLoop]: 3968 mSDtfsCounter, 3827 mSDsluCounter, 3945 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3827 SdHoareTripleChecker+Valid, 7913 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.14ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 155.21ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:43,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3827 Valid, 7913 Invalid, 132 Unknown, 0 Unchecked, 8.14ms Time], IncrementalHoareTripleChecker [44 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 155.21ms Time] [2021-11-05 20:51:43,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31519 states. [2021-11-05 20:51:44,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31519 to 31519. [2021-11-05 20:51:44,131 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) [2021-11-05 20:51:44,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31519 states to 31519 states and 40811 transitions. [2021-11-05 20:51:44,178 INFO L78 Accepts]: Start accepts. Automaton has 31519 states and 40811 transitions. Word has length 87 [2021-11-05 20:51:44,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:44,178 INFO L470 AbstractCegarLoop]: Abstraction has 31519 states and 40811 transitions. [2021-11-05 20:51:44,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:51:44,179 INFO L276 IsEmpty]: Start isEmpty. Operand 31519 states and 40811 transitions. [2021-11-05 20:51:44,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-05 20:51:44,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:44,182 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:51:44,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 20:51:44,182 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)] === [2021-11-05 20:51:44,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:44,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1153558402, now seen corresponding path program 1 times [2021-11-05 20:51:44,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:44,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887538061] [2021-11-05 20:51:44,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:44,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:44,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:44,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887538061] [2021-11-05 20:51:44,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887538061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:44,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:44,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:44,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690001269] [2021-11-05 20:51:44,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:44,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:44,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:44,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:44,312 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) [2021-11-05 20:51:45,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:45,066 INFO L93 Difference]: Finished difference Result 31519 states and 40811 transitions. [2021-11-05 20:51:45,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:45,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-05 20:51:45,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:45,110 INFO L225 Difference]: With dead ends: 31519 [2021-11-05 20:51:45,110 INFO L226 Difference]: Without dead ends: 31513 [2021-11-05 20:51:45,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.31ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:45,124 INFO L933 BasicCegarLoop]: 3970 mSDtfsCounter, 3899 mSDsluCounter, 3886 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 90.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3899 SdHoareTripleChecker+Valid, 7856 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.96ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102.90ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:45,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3899 Valid, 7856 Invalid, 97 Unknown, 0 Unchecked, 6.96ms Time], IncrementalHoareTripleChecker [40 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 102.90ms Time] [2021-11-05 20:51:45,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31513 states. [2021-11-05 20:51:45,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31513 to 31513. [2021-11-05 20:51:45,836 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) [2021-11-05 20:51:45,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31513 states to 31513 states and 40805 transitions. [2021-11-05 20:51:45,883 INFO L78 Accepts]: Start accepts. Automaton has 31513 states and 40805 transitions. Word has length 89 [2021-11-05 20:51:45,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:45,883 INFO L470 AbstractCegarLoop]: Abstraction has 31513 states and 40805 transitions. [2021-11-05 20:51:45,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:51:45,884 INFO L276 IsEmpty]: Start isEmpty. Operand 31513 states and 40805 transitions. [2021-11-05 20:51:45,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-05 20:51:45,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:45,887 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:51:45,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 20:51:45,887 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)] === [2021-11-05 20:51:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash -467912255, now seen corresponding path program 1 times [2021-11-05 20:51:45,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:45,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896338362] [2021-11-05 20:51:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:45,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:46,023 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:46,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:46,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896338362] [2021-11-05 20:51:46,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896338362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:46,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:46,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:46,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552242968] [2021-11-05 20:51:46,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:46,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:46,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:46,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:46,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:46,025 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) [2021-11-05 20:51:46,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:46,806 INFO L93 Difference]: Finished difference Result 31513 states and 40805 transitions. [2021-11-05 20:51:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:46,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-11-05 20:51:46,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:46,850 INFO L225 Difference]: With dead ends: 31513 [2021-11-05 20:51:46,850 INFO L226 Difference]: Without dead ends: 31507 [2021-11-05 20:51:46,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.31ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:46,863 INFO L933 BasicCegarLoop]: 3962 mSDtfsCounter, 3866 mSDsluCounter, 3902 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3866 SdHoareTripleChecker+Valid, 7864 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.25ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.36ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:46,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3866 Valid, 7864 Invalid, 102 Unknown, 0 Unchecked, 6.25ms Time], IncrementalHoareTripleChecker [41 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 107.36ms Time] [2021-11-05 20:51:46,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31507 states. [2021-11-05 20:51:47,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31507 to 31507. [2021-11-05 20:51:47,590 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) [2021-11-05 20:51:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31507 states to 31507 states and 40799 transitions. [2021-11-05 20:51:47,636 INFO L78 Accepts]: Start accepts. Automaton has 31507 states and 40799 transitions. Word has length 91 [2021-11-05 20:51:47,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:47,636 INFO L470 AbstractCegarLoop]: Abstraction has 31507 states and 40799 transitions. [2021-11-05 20:51:47,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:51:47,637 INFO L276 IsEmpty]: Start isEmpty. Operand 31507 states and 40799 transitions. [2021-11-05 20:51:47,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-05 20:51:47,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:47,640 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:51:47,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 20:51:47,640 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)] === [2021-11-05 20:51:47,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:47,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1308039044, now seen corresponding path program 1 times [2021-11-05 20:51:47,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:47,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335719863] [2021-11-05 20:51:47,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:47,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:47,780 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:47,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:47,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335719863] [2021-11-05 20:51:47,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335719863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:47,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:47,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:47,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046328302] [2021-11-05 20:51:47,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:47,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:47,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:47,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:47,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:47,781 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) [2021-11-05 20:51:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:48,871 INFO L93 Difference]: Finished difference Result 31507 states and 40799 transitions. [2021-11-05 20:51:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-05 20:51:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:48,920 INFO L225 Difference]: With dead ends: 31507 [2021-11-05 20:51:48,920 INFO L226 Difference]: Without dead ends: 31501 [2021-11-05 20:51:48,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.03ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:48,936 INFO L933 BasicCegarLoop]: 3958 mSDtfsCounter, 3883 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3883 SdHoareTripleChecker+Valid, 7838 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.33ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.26ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:48,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3883 Valid, 7838 Invalid, 91 Unknown, 0 Unchecked, 7.33ms Time], IncrementalHoareTripleChecker [40 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 96.26ms Time] [2021-11-05 20:51:48,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31501 states. [2021-11-05 20:51:50,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31501 to 31501. [2021-11-05 20:51:50,119 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) [2021-11-05 20:51:50,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31501 states to 31501 states and 40793 transitions. [2021-11-05 20:51:50,174 INFO L78 Accepts]: Start accepts. Automaton has 31501 states and 40793 transitions. Word has length 93 [2021-11-05 20:51:50,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:50,175 INFO L470 AbstractCegarLoop]: Abstraction has 31501 states and 40793 transitions. [2021-11-05 20:51:50,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:51:50,175 INFO L276 IsEmpty]: Start isEmpty. Operand 31501 states and 40793 transitions. [2021-11-05 20:51:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-05 20:51:50,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:50,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:51:50,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 20:51:50,179 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)] === [2021-11-05 20:51:50,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:50,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1399746105, now seen corresponding path program 1 times [2021-11-05 20:51:50,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:50,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360793405] [2021-11-05 20:51:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:50,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:50,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:50,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360793405] [2021-11-05 20:51:50,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360793405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:50,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:50,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:50,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908825396] [2021-11-05 20:51:50,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:50,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:50,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:50,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:50,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:50,319 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) [2021-11-05 20:51:51,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:51,151 INFO L93 Difference]: Finished difference Result 31501 states and 40793 transitions. [2021-11-05 20:51:51,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:51,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-05 20:51:51,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:51,202 INFO L225 Difference]: With dead ends: 31501 [2021-11-05 20:51:51,202 INFO L226 Difference]: Without dead ends: 31495 [2021-11-05 20:51:51,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.32ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:51,217 INFO L933 BasicCegarLoop]: 3952 mSDtfsCounter, 3875 mSDsluCounter, 3877 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3875 SdHoareTripleChecker+Valid, 7829 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.84ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.64ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:51,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3875 Valid, 7829 Invalid, 88 Unknown, 0 Unchecked, 6.84ms Time], IncrementalHoareTripleChecker [40 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 94.64ms Time] [2021-11-05 20:51:51,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31495 states. [2021-11-05 20:51:52,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31495 to 31495. [2021-11-05 20:51:52,188 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) [2021-11-05 20:51:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31495 states to 31495 states and 40787 transitions. [2021-11-05 20:51:52,236 INFO L78 Accepts]: Start accepts. Automaton has 31495 states and 40787 transitions. Word has length 95 [2021-11-05 20:51:52,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:52,236 INFO L470 AbstractCegarLoop]: Abstraction has 31495 states and 40787 transitions. [2021-11-05 20:51:52,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:51:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 31495 states and 40787 transitions. [2021-11-05 20:51:52,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-05 20:51:52,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:52,241 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:51:52,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-05 20:51:52,241 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)] === [2021-11-05 20:51:52,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:52,241 INFO L85 PathProgramCache]: Analyzing trace with hash -831092598, now seen corresponding path program 1 times [2021-11-05 20:51:52,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:52,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740128053] [2021-11-05 20:51:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:52,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:52,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:52,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740128053] [2021-11-05 20:51:52,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740128053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:52,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:52,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:52,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296183360] [2021-11-05 20:51:52,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:52,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:52,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:52,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:52,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:52,368 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) [2021-11-05 20:51:53,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:53,281 INFO L93 Difference]: Finished difference Result 31495 states and 40787 transitions. [2021-11-05 20:51:53,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:53,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-05 20:51:53,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:53,321 INFO L225 Difference]: With dead ends: 31495 [2021-11-05 20:51:53,321 INFO L226 Difference]: Without dead ends: 31489 [2021-11-05 20:51:53,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:53,331 INFO L933 BasicCegarLoop]: 3946 mSDtfsCounter, 3867 mSDsluCounter, 3874 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 7820 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.54ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.03ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:53,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3867 Valid, 7820 Invalid, 85 Unknown, 0 Unchecked, 6.54ms Time], IncrementalHoareTripleChecker [40 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 76.03ms Time] [2021-11-05 20:51:53,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31489 states. [2021-11-05 20:51:54,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31489 to 31489. [2021-11-05 20:51:54,181 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) [2021-11-05 20:51:54,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31489 states to 31489 states and 40781 transitions. [2021-11-05 20:51:54,226 INFO L78 Accepts]: Start accepts. Automaton has 31489 states and 40781 transitions. Word has length 97 [2021-11-05 20:51:54,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:54,227 INFO L470 AbstractCegarLoop]: Abstraction has 31489 states and 40781 transitions. [2021-11-05 20:51:54,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:51:54,227 INFO L276 IsEmpty]: Start isEmpty. Operand 31489 states and 40781 transitions. [2021-11-05 20:51:54,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-05 20:51:54,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:54,231 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] [2021-11-05 20:51:54,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-05 20:51:54,231 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)] === [2021-11-05 20:51:54,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:54,232 INFO L85 PathProgramCache]: Analyzing trace with hash 646095019, now seen corresponding path program 1 times [2021-11-05 20:51:54,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:54,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512986748] [2021-11-05 20:51:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:54,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:51:54,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:54,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512986748] [2021-11-05 20:51:54,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512986748] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:54,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:54,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:54,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197730952] [2021-11-05 20:51:54,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:54,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:51:54,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:54,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:51:54,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:54,356 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) [2021-11-05 20:51:56,388 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:51:57,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:57,437 INFO L93 Difference]: Finished difference Result 60683 states and 78795 transitions. [2021-11-05 20:51:57,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:51:57,437 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 [2021-11-05 20:51:57,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:57,483 INFO L225 Difference]: With dead ends: 60683 [2021-11-05 20:51:57,483 INFO L226 Difference]: Without dead ends: 29270 [2021-11-05 20:51:57,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:51:57,526 INFO L933 BasicCegarLoop]: 4846 mSDtfsCounter, 1163 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2126.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 8682 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.13ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2274.37ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:57,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 8682 Invalid, 100 Unknown, 0 Unchecked, 5.13ms Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2274.37ms Time] [2021-11-05 20:51:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29270 states. [2021-11-05 20:51:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29270 to 29185. [2021-11-05 20:51:58,481 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) [2021-11-05 20:51:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29185 states to 29185 states and 37817 transitions. [2021-11-05 20:51:58,525 INFO L78 Accepts]: Start accepts. Automaton has 29185 states and 37817 transitions. Word has length 97 [2021-11-05 20:51:58,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:51:58,525 INFO L470 AbstractCegarLoop]: Abstraction has 29185 states and 37817 transitions. [2021-11-05 20:51:58,525 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) [2021-11-05 20:51:58,525 INFO L276 IsEmpty]: Start isEmpty. Operand 29185 states and 37817 transitions. [2021-11-05 20:51:58,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-05 20:51:58,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:51:58,528 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:51:58,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-05 20:51:58,528 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)] === [2021-11-05 20:51:58,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:51:58,529 INFO L85 PathProgramCache]: Analyzing trace with hash 184081357, now seen corresponding path program 1 times [2021-11-05 20:51:58,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:51:58,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589231218] [2021-11-05 20:51:58,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:51:58,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:51:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:51:58,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 20:51:58,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:51:58,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589231218] [2021-11-05 20:51:58,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589231218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:51:58,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:51:58,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:51:58,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657286692] [2021-11-05 20:51:58,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:51:58,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:51:58,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:51:58,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:51:58,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:51:58,672 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) [2021-11-05 20:51:59,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:51:59,456 INFO L93 Difference]: Finished difference Result 29185 states and 37817 transitions. [2021-11-05 20:51:59,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:51:59,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-05 20:51:59,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:51:59,500 INFO L225 Difference]: With dead ends: 29185 [2021-11-05 20:51:59,500 INFO L226 Difference]: Without dead ends: 28979 [2021-11-05 20:51:59,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.50ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:51:59,514 INFO L933 BasicCegarLoop]: 3943 mSDtfsCounter, 3856 mSDsluCounter, 3871 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3856 SdHoareTripleChecker+Valid, 7814 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.63ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.53ms IncrementalHoareTripleChecker+Time [2021-11-05 20:51:59,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3856 Valid, 7814 Invalid, 82 Unknown, 0 Unchecked, 6.63ms Time], IncrementalHoareTripleChecker [43 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 68.53ms Time] [2021-11-05 20:51:59,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28979 states. [2021-11-05 20:52:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28979 to 28979. [2021-11-05 20:52:00,693 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) [2021-11-05 20:52:00,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28979 states to 28979 states and 37551 transitions. [2021-11-05 20:52:00,743 INFO L78 Accepts]: Start accepts. Automaton has 28979 states and 37551 transitions. Word has length 99 [2021-11-05 20:52:00,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:00,743 INFO L470 AbstractCegarLoop]: Abstraction has 28979 states and 37551 transitions. [2021-11-05 20:52:00,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:52:00,744 INFO L276 IsEmpty]: Start isEmpty. Operand 28979 states and 37551 transitions. [2021-11-05 20:52:00,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-05 20:52:00,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:00,749 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] [2021-11-05 20:52:00,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-05 20:52:00,750 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)] === [2021-11-05 20:52:00,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:00,750 INFO L85 PathProgramCache]: Analyzing trace with hash -242047824, now seen corresponding path program 1 times [2021-11-05 20:52:00,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:00,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612665604] [2021-11-05 20:52:00,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:00,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:52:00,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:00,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612665604] [2021-11-05 20:52:00,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612665604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:00,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:00,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:00,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325767635] [2021-11-05 20:52:00,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:00,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:00,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:00,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:00,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:00,875 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) [2021-11-05 20:52:02,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:52:04,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:04,097 INFO L93 Difference]: Finished difference Result 63202 states and 82096 transitions. [2021-11-05 20:52:04,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:04,097 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 [2021-11-05 20:52:04,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:04,156 INFO L225 Difference]: With dead ends: 63202 [2021-11-05 20:52:04,156 INFO L226 Difference]: Without dead ends: 34397 [2021-11-05 20:52:04,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:04,199 INFO L933 BasicCegarLoop]: 4914 mSDtfsCounter, 1070 mSDsluCounter, 3783 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2120.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 8697 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.97ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2238.00ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:04,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 8697 Invalid, 86 Unknown, 0 Unchecked, 4.97ms Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2238.00ms Time] [2021-11-05 20:52:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34397 states. [2021-11-05 20:52:05,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34397 to 34361. [2021-11-05 20:52:05,436 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) [2021-11-05 20:52:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34361 states to 34361 states and 44547 transitions. [2021-11-05 20:52:05,488 INFO L78 Accepts]: Start accepts. Automaton has 34361 states and 44547 transitions. Word has length 129 [2021-11-05 20:52:05,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:05,488 INFO L470 AbstractCegarLoop]: Abstraction has 34361 states and 44547 transitions. [2021-11-05 20:52:05,488 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) [2021-11-05 20:52:05,489 INFO L276 IsEmpty]: Start isEmpty. Operand 34361 states and 44547 transitions. [2021-11-05 20:52:05,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-05 20:52:05,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:05,495 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] [2021-11-05 20:52:05,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-05 20:52:05,495 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)] === [2021-11-05 20:52:05,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:05,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1927563945, now seen corresponding path program 1 times [2021-11-05 20:52:05,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:05,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96995244] [2021-11-05 20:52:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:05,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 20:52:05,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:05,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96995244] [2021-11-05 20:52:05,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96995244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:05,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:05,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:05,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158975068] [2021-11-05 20:52:05,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:05,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:05,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:05,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:05,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:05,620 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) [2021-11-05 20:52:07,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:52:08,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:08,911 INFO L93 Difference]: Finished difference Result 73918 states and 95992 transitions. [2021-11-05 20:52:08,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:08,912 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 [2021-11-05 20:52:08,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:08,975 INFO L225 Difference]: With dead ends: 73918 [2021-11-05 20:52:08,975 INFO L226 Difference]: Without dead ends: 39638 [2021-11-05 20:52:09,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:09,027 INFO L933 BasicCegarLoop]: 4915 mSDtfsCounter, 1064 mSDsluCounter, 3796 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2101.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 8711 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.95ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2227.02ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:09,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 8711 Invalid, 79 Unknown, 0 Unchecked, 4.95ms Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2227.02ms Time] [2021-11-05 20:52:09,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39638 states. [2021-11-05 20:52:10,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39638 to 39602. [2021-11-05 20:52:10,505 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) [2021-11-05 20:52:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39602 states to 39602 states and 51370 transitions. [2021-11-05 20:52:10,569 INFO L78 Accepts]: Start accepts. Automaton has 39602 states and 51370 transitions. Word has length 166 [2021-11-05 20:52:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:10,569 INFO L470 AbstractCegarLoop]: Abstraction has 39602 states and 51370 transitions. [2021-11-05 20:52:10,569 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) [2021-11-05 20:52:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 39602 states and 51370 transitions. [2021-11-05 20:52:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-05 20:52:10,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:10,576 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] [2021-11-05 20:52:10,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-05 20:52:10,576 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)] === [2021-11-05 20:52:10,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:10,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1151249625, now seen corresponding path program 1 times [2021-11-05 20:52:10,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:10,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107242543] [2021-11-05 20:52:10,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:10,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:10,702 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 20:52:10,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:10,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107242543] [2021-11-05 20:52:10,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107242543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:10,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:10,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:10,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097778109] [2021-11-05 20:52:10,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:10,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:10,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:10,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:10,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:10,705 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) [2021-11-05 20:52:12,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:52:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:14,497 INFO L93 Difference]: Finished difference Result 84436 states and 109710 transitions. [2021-11-05 20:52:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:14,497 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 [2021-11-05 20:52:14,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:14,566 INFO L225 Difference]: With dead ends: 84436 [2021-11-05 20:52:14,566 INFO L226 Difference]: Without dead ends: 45008 [2021-11-05 20:52:14,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.95ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:14,604 INFO L933 BasicCegarLoop]: 4915 mSDtfsCounter, 1700 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2112.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 8078 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.02ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2253.40ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:14,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1700 Valid, 8078 Invalid, 85 Unknown, 0 Unchecked, 5.02ms Time], IncrementalHoareTripleChecker [16 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 2253.40ms Time] [2021-11-05 20:52:14,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45008 states. [2021-11-05 20:52:16,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45008 to 44972. [2021-11-05 20:52:16,119 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) [2021-11-05 20:52:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44972 states to 44972 states and 58354 transitions. [2021-11-05 20:52:16,182 INFO L78 Accepts]: Start accepts. Automaton has 44972 states and 58354 transitions. Word has length 166 [2021-11-05 20:52:16,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:16,183 INFO L470 AbstractCegarLoop]: Abstraction has 44972 states and 58354 transitions. [2021-11-05 20:52:16,183 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) [2021-11-05 20:52:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 44972 states and 58354 transitions. [2021-11-05 20:52:16,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-05 20:52:16,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:16,190 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] [2021-11-05 20:52:16,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-05 20:52:16,190 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)] === [2021-11-05 20:52:16,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:16,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2074869977, now seen corresponding path program 1 times [2021-11-05 20:52:16,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:16,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490942767] [2021-11-05 20:52:16,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:16,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:16,315 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:52:16,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:16,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490942767] [2021-11-05 20:52:16,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490942767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:16,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:16,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:16,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674658145] [2021-11-05 20:52:16,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:16,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:16,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:16,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:16,317 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) [2021-11-05 20:52:18,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:52:20,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:20,152 INFO L93 Difference]: Finished difference Result 95152 states and 123630 transitions. [2021-11-05 20:52:20,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:20,152 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 [2021-11-05 20:52:20,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:20,237 INFO L225 Difference]: With dead ends: 95152 [2021-11-05 20:52:20,238 INFO L226 Difference]: Without dead ends: 50354 [2021-11-05 20:52:20,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:20,418 INFO L933 BasicCegarLoop]: 4390 mSDtfsCounter, 1067 mSDsluCounter, 3794 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2093.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 8184 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.91ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2226.45ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:20,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1067 Valid, 8184 Invalid, 81 Unknown, 0 Unchecked, 4.91ms Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 2226.45ms Time] [2021-11-05 20:52:20,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50354 states. [2021-11-05 20:52:22,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50354 to 50318. [2021-11-05 20:52:22,214 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) [2021-11-05 20:52:22,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50318 states to 50318 states and 65314 transitions. [2021-11-05 20:52:22,292 INFO L78 Accepts]: Start accepts. Automaton has 50318 states and 65314 transitions. Word has length 201 [2021-11-05 20:52:22,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:22,293 INFO L470 AbstractCegarLoop]: Abstraction has 50318 states and 65314 transitions. [2021-11-05 20:52:22,293 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) [2021-11-05 20:52:22,293 INFO L276 IsEmpty]: Start isEmpty. Operand 50318 states and 65314 transitions. [2021-11-05 20:52:22,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-05 20:52:22,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:22,300 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] [2021-11-05 20:52:22,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-05 20:52:22,301 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)] === [2021-11-05 20:52:22,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash 858716251, now seen corresponding path program 1 times [2021-11-05 20:52:22,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:22,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623418779] [2021-11-05 20:52:22,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:22,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-05 20:52:22,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:22,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623418779] [2021-11-05 20:52:22,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623418779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:22,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:22,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:52:22,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734015847] [2021-11-05 20:52:22,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:22,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:52:22,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:22,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:52:22,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:22,437 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) [2021-11-05 20:52:24,475 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 [] [2021-11-05 20:52:26,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:52:26,735 INFO L93 Difference]: Finished difference Result 105856 states and 137574 transitions. [2021-11-05 20:52:26,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:52:26,735 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 [2021-11-05 20:52:26,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:52:26,838 INFO L225 Difference]: With dead ends: 105856 [2021-11-05 20:52:26,838 INFO L226 Difference]: Without dead ends: 55712 [2021-11-05 20:52:26,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:52:26,898 INFO L933 BasicCegarLoop]: 4915 mSDtfsCounter, 1076 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2106.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 8701 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.93ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2235.63ms IncrementalHoareTripleChecker+Time [2021-11-05 20:52:26,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 8701 Invalid, 83 Unknown, 0 Unchecked, 4.93ms Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 2235.63ms Time] [2021-11-05 20:52:26,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55712 states. [2021-11-05 20:52:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55712 to 55676. [2021-11-05 20:52:28,944 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) [2021-11-05 20:52:29,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55676 states to 55676 states and 72286 transitions. [2021-11-05 20:52:29,029 INFO L78 Accepts]: Start accepts. Automaton has 55676 states and 72286 transitions. Word has length 201 [2021-11-05 20:52:29,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:52:29,029 INFO L470 AbstractCegarLoop]: Abstraction has 55676 states and 72286 transitions. [2021-11-05 20:52:29,030 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) [2021-11-05 20:52:29,030 INFO L276 IsEmpty]: Start isEmpty. Operand 55676 states and 72286 transitions. [2021-11-05 20:52:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-05 20:52:29,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:52:29,038 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] [2021-11-05 20:52:29,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-05 20:52:29,038 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)] === [2021-11-05 20:52:29,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:52:29,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1760550403, now seen corresponding path program 1 times [2021-11-05 20:52:29,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:52:29,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309225634] [2021-11-05 20:52:29,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:52:29,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:52:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:52:29,176 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-05 20:52:29,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:52:29,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309225634] [2021-11-05 20:52:29,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309225634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:52:29,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:52:29,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 20:52:29,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22710431] [2021-11-05 20:52:29,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:52:29,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:52:29,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:52:29,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:52:29,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:52:29,178 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) [2021-11-05 20:52:31,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []