./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-irda-vlsi_ir.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-irda-vlsi_ir.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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:53:06,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:53:06,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:53:06,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:53:06,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:53:06,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:53:06,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:53:06,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:53:06,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:53:06,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:53:06,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:53:06,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:53:06,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:53:06,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:53:06,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:53:06,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:53:06,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:53:06,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:53:06,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:53:06,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:53:06,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:53:06,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:53:06,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:53:06,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:53:06,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:53:06,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:53:06,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:53:06,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:53:06,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:53:06,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:53:06,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:53:06,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:53:06,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:53:06,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:53:06,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:53:06,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:53:06,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:53:06,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:53:06,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:53:06,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:53:06,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:53:06,550 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:53:06,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:53:06,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:53:06,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:53:06,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:53:06,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:53:06,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:53:06,598 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:53:06,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:53:06,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:53:06,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:53:06,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:53:06,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:53:06,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:53:06,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:53:06,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:53:06,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:53:06,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:53:06,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:53:06,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:53:06,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:53:06,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:53:06,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:53:06,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:53:06,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:53:06,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:53:06,602 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:53:06,602 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:53:06,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:53:06,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:53:06,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-05 20:53:06,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:53:06,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:53:06,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:53:06,939 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:53:06,940 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:53:06,941 INFO L432 ainManager$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-irda-vlsi_ir.cil.i [2021-11-05 20:53:07,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/018b61611/87b69759b0904cf795cb05571ccc620f/FLAG959c652c8 [2021-11-05 20:53:07,789 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:53:07,790 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-irda-vlsi_ir.cil.i [2021-11-05 20:53:07,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/018b61611/87b69759b0904cf795cb05571ccc620f/FLAG959c652c8 [2021-11-05 20:53:08,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/018b61611/87b69759b0904cf795cb05571ccc620f [2021-11-05 20:53:08,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:53:08,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:53:08,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:53:08,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:53:08,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:53:08,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:53:08" (1/1) ... [2021-11-05 20:53:08,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cc475b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:08, skipping insertion in model container [2021-11-05 20:53:08,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:53:08" (1/1) ... [2021-11-05 20:53:08,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:53:08,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:53:10,810 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-irda-vlsi_ir.cil.i[347848,347861] [2021-11-05 20:53:10,812 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-irda-vlsi_ir.cil.i[348017,348030] [2021-11-05 20:53:10,813 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-irda-vlsi_ir.cil.i[348184,348197] [2021-11-05 20:53:10,813 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-irda-vlsi_ir.cil.i[348352,348365] [2021-11-05 20:53:10,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:53:10,907 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:53:11,228 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-irda-vlsi_ir.cil.i[347848,347861] [2021-11-05 20:53:11,230 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-irda-vlsi_ir.cil.i[348017,348030] [2021-11-05 20:53:11,230 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-irda-vlsi_ir.cil.i[348184,348197] [2021-11-05 20:53:11,230 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-irda-vlsi_ir.cil.i[348352,348365] [2021-11-05 20:53:11,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:53:11,431 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:53:11,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11 WrapperNode [2021-11-05 20:53:11,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:53:11,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:53:11,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:53:11,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:53:11,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:11,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:12,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:53:12,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:53:12,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:53:12,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:53:12,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:12,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:12,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:12,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:13,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:13,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:13,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:13,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:53:13,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:53:13,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:53:13,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:53:13,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (1/1) ... [2021-11-05 20:53:13,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:53:13,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:53:13,440 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 20:53:13,463 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 20:53:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:53:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:53:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:53:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:53:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:53:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:53:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 20:53:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:53:13,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:53:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:53:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:53:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:53:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:53:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:53:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:53:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:54:30,275 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 20:54:30,275 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 20:54:30,275 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:54:30,275 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:54:30,276 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:54:30,277 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 20:54:30,277 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:54:30,306 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:54:30,306 INFO L299 CfgBuilder]: Removed 5799 assume(true) statements. [2021-11-05 20:54:30,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:54:30 BoogieIcfgContainer [2021-11-05 20:54:30,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:54:30,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:54:30,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:54:30,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:54:30,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:53:08" (1/3) ... [2021-11-05 20:54:30,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e030691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:54:30, skipping insertion in model container [2021-11-05 20:54:30,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:11" (2/3) ... [2021-11-05 20:54:30,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e030691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:54:30, skipping insertion in model container [2021-11-05 20:54:30,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:54:30" (3/3) ... [2021-11-05 20:54:30,319 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-05 20:54:30,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:54:30,323 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2021-11-05 20:54:30,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:54:30,391 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 20:54:30,391 INFO L340 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2021-11-05 20:54:30,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 5442 states, 5381 states have (on average 1.3413863594127486) internal successors, (7218), 5441 states have internal predecessors, (7218), 0 states have call successors, (0), 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 20:54:30,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 20:54:30,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:30,481 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] [2021-11-05 20:54:30,482 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:54:30,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:30,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2097704285, now seen corresponding path program 1 times [2021-11-05 20:54:30,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:30,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100541974] [2021-11-05 20:54:30,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:30,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:31,269 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 20:54:31,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:31,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100541974] [2021-11-05 20:54:31,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100541974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:31,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:31,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:31,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219432350] [2021-11-05 20:54:31,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:31,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:31,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:31,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:31,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:31,322 INFO L87 Difference]: Start difference. First operand has 5442 states, 5381 states have (on average 1.3413863594127486) internal successors, (7218), 5441 states have internal predecessors, (7218), 0 states have call successors, (0), 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 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 20:54:33,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:34,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:34,198 INFO L93 Difference]: Finished difference Result 15656 states and 20767 transitions. [2021-11-05 20:54:34,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:34,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2021-11-05 20:54:34,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:34,252 INFO L225 Difference]: With dead ends: 15656 [2021-11-05 20:54:34,253 INFO L226 Difference]: Without dead ends: 10010 [2021-11-05 20:54:34,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:34,275 INFO L933 BasicCegarLoop]: 7040 mSDtfsCounter, 6414 mSDsluCounter, 6954 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2370.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6414 SdHoareTripleChecker+Valid, 13994 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.42ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2501.58ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:34,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6414 Valid, 13994 Invalid, 52 Unknown, 0 Unchecked, 35.42ms Time], IncrementalHoareTripleChecker [16 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 2501.58ms Time] [2021-11-05 20:54:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10010 states. [2021-11-05 20:54:34,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10010 to 8653. [2021-11-05 20:54:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8653 states, 8592 states have (on average 1.2932960893854748) internal successors, (11112), 8652 states have internal predecessors, (11112), 0 states have call successors, (0), 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 20:54:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8653 states to 8653 states and 11112 transitions. [2021-11-05 20:54:34,590 INFO L78 Accepts]: Start accepts. Automaton has 8653 states and 11112 transitions. Word has length 50 [2021-11-05 20:54:34,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:34,591 INFO L470 AbstractCegarLoop]: Abstraction has 8653 states and 11112 transitions. [2021-11-05 20:54:34,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 20:54:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 8653 states and 11112 transitions. [2021-11-05 20:54:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-05 20:54:34,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:34,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:54:34,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:54:34,601 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:54:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1423488389, now seen corresponding path program 1 times [2021-11-05 20:54:34,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:34,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842492731] [2021-11-05 20:54:34,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:34,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:35,198 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 20:54:35,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:35,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842492731] [2021-11-05 20:54:35,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842492731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:35,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:35,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:35,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036399069] [2021-11-05 20:54:35,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:35,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:35,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:35,201 INFO L87 Difference]: Start difference. First operand 8653 states and 11112 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 20:54:37,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:37,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:37,968 INFO L93 Difference]: Finished difference Result 25473 states and 32799 transitions. [2021-11-05 20:54:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:37,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-11-05 20:54:37,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:38,055 INFO L225 Difference]: With dead ends: 25473 [2021-11-05 20:54:38,056 INFO L226 Difference]: Without dead ends: 16912 [2021-11-05 20:54:38,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:38,078 INFO L933 BasicCegarLoop]: 6697 mSDtfsCounter, 6403 mSDsluCounter, 6618 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2274.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6403 SdHoareTripleChecker+Valid, 13315 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.16ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2402.64ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:38,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6403 Valid, 13315 Invalid, 34 Unknown, 0 Unchecked, 21.16ms Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2402.64ms Time] [2021-11-05 20:54:38,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16912 states. [2021-11-05 20:54:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16912 to 16868. [2021-11-05 20:54:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16868 states, 16807 states have (on average 1.2943416433628845) internal successors, (21754), 16867 states have internal predecessors, (21754), 0 states have call successors, (0), 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 20:54:38,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16868 states to 16868 states and 21754 transitions. [2021-11-05 20:54:38,585 INFO L78 Accepts]: Start accepts. Automaton has 16868 states and 21754 transitions. Word has length 52 [2021-11-05 20:54:38,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:38,586 INFO L470 AbstractCegarLoop]: Abstraction has 16868 states and 21754 transitions. [2021-11-05 20:54:38,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 20:54:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 16868 states and 21754 transitions. [2021-11-05 20:54:38,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-05 20:54:38,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:38,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:54:38,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:54:38,591 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:54:38,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash -475618733, now seen corresponding path program 1 times [2021-11-05 20:54:38,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:38,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073262688] [2021-11-05 20:54:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:38,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:38,883 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 20:54:38,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:38,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073262688] [2021-11-05 20:54:38,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073262688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:38,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:38,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:38,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76691529] [2021-11-05 20:54:38,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:38,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:38,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:38,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:38,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:38,885 INFO L87 Difference]: Start difference. First operand 16868 states and 21754 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 20:54:40,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:41,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:41,825 INFO L93 Difference]: Finished difference Result 47272 states and 60910 transitions. [2021-11-05 20:54:41,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:41,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2021-11-05 20:54:41,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:41,915 INFO L225 Difference]: With dead ends: 47272 [2021-11-05 20:54:41,916 INFO L226 Difference]: Without dead ends: 30496 [2021-11-05 20:54:41,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:41,954 INFO L933 BasicCegarLoop]: 6694 mSDtfsCounter, 5558 mSDsluCounter, 6634 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2369.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5558 SdHoareTripleChecker+Valid, 13328 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.49ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2461.38ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:41,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5558 Valid, 13328 Invalid, 49 Unknown, 0 Unchecked, 21.49ms Time], IncrementalHoareTripleChecker [9 Valid, 39 Invalid, 1 Unknown, 0 Unchecked, 2461.38ms Time] [2021-11-05 20:54:41,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30496 states. [2021-11-05 20:54:42,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30496 to 28968. [2021-11-05 20:54:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28968 states, 28907 states have (on average 1.2918670218286228) internal successors, (37344), 28967 states have internal predecessors, (37344), 0 states have call successors, (0), 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 20:54:42,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28968 states to 28968 states and 37344 transitions. [2021-11-05 20:54:42,695 INFO L78 Accepts]: Start accepts. Automaton has 28968 states and 37344 transitions. Word has length 56 [2021-11-05 20:54:42,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:42,697 INFO L470 AbstractCegarLoop]: Abstraction has 28968 states and 37344 transitions. [2021-11-05 20:54:42,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 20:54:42,697 INFO L276 IsEmpty]: Start isEmpty. Operand 28968 states and 37344 transitions. [2021-11-05 20:54:42,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-05 20:54:42,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:42,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:54:42,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:54:42,700 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:54:42,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:42,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1528840602, now seen corresponding path program 1 times [2021-11-05 20:54:42,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:42,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427747151] [2021-11-05 20:54:42,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:42,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:42,982 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 20:54:42,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:42,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427747151] [2021-11-05 20:54:42,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427747151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:42,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:42,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:42,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95524220] [2021-11-05 20:54:42,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:42,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:42,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:42,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:42,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:42,984 INFO L87 Difference]: Start difference. First operand 28968 states and 37344 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) 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 20:54:45,097 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:46,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:46,261 INFO L93 Difference]: Finished difference Result 47063 states and 60689 transitions. [2021-11-05 20:54:46,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:46,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) 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 70 [2021-11-05 20:54:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:46,309 INFO L225 Difference]: With dead ends: 47063 [2021-11-05 20:54:46,310 INFO L226 Difference]: Without dead ends: 18187 [2021-11-05 20:54:46,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.09ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:46,353 INFO L933 BasicCegarLoop]: 8172 mSDtfsCounter, 1935 mSDsluCounter, 6536 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2588.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 14708 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.88ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2719.56ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:46,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1935 Valid, 14708 Invalid, 100 Unknown, 0 Unchecked, 13.88ms Time], IncrementalHoareTripleChecker [20 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 2719.56ms Time] [2021-11-05 20:54:46,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18187 states. [2021-11-05 20:54:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18187 to 18081. [2021-11-05 20:54:46,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18081 states, 18020 states have (on average 1.2918978912319645) internal successors, (23280), 18080 states have internal predecessors, (23280), 0 states have call successors, (0), 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 20:54:46,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18081 states to 18081 states and 23280 transitions. [2021-11-05 20:54:46,773 INFO L78 Accepts]: Start accepts. Automaton has 18081 states and 23280 transitions. Word has length 70 [2021-11-05 20:54:46,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:46,773 INFO L470 AbstractCegarLoop]: Abstraction has 18081 states and 23280 transitions. [2021-11-05 20:54:46,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) 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 20:54:46,774 INFO L276 IsEmpty]: Start isEmpty. Operand 18081 states and 23280 transitions. [2021-11-05 20:54:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 20:54:46,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:46,777 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:54:46,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:54:46,777 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:54:46,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:46,778 INFO L85 PathProgramCache]: Analyzing trace with hash 980879748, now seen corresponding path program 1 times [2021-11-05 20:54:46,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:46,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864070010] [2021-11-05 20:54:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:46,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:47,104 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 20:54:47,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:47,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864070010] [2021-11-05 20:54:47,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864070010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:47,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:47,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:47,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851732198] [2021-11-05 20:54:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:47,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:47,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:47,106 INFO L87 Difference]: Start difference. First operand 18081 states and 23280 transitions. Second operand has 3 states, 3 states have (on average 26.0) 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 20:54:49,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:50,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:50,096 INFO L93 Difference]: Finished difference Result 53029 states and 68411 transitions. [2021-11-05 20:54:50,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:50,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) 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 78 [2021-11-05 20:54:50,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:50,190 INFO L225 Difference]: With dead ends: 53029 [2021-11-05 20:54:50,194 INFO L226 Difference]: Without dead ends: 35211 [2021-11-05 20:54:50,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:50,243 INFO L933 BasicCegarLoop]: 6896 mSDtfsCounter, 6341 mSDsluCounter, 6678 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2244.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6341 SdHoareTripleChecker+Valid, 13574 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.88ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2321.91ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:50,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6341 Valid, 13574 Invalid, 30 Unknown, 0 Unchecked, 13.88ms Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2321.91ms Time] [2021-11-05 20:54:50,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35211 states. [2021-11-05 20:54:50,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35211 to 35167. [2021-11-05 20:54:50,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35167 states, 35106 states have (on average 1.2924286446761237) internal successors, (45372), 35166 states have internal predecessors, (45372), 0 states have call successors, (0), 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 20:54:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35167 states to 35167 states and 45372 transitions. [2021-11-05 20:54:50,993 INFO L78 Accepts]: Start accepts. Automaton has 35167 states and 45372 transitions. Word has length 78 [2021-11-05 20:54:50,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:50,993 INFO L470 AbstractCegarLoop]: Abstraction has 35167 states and 45372 transitions. [2021-11-05 20:54:50,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) 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 20:54:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 35167 states and 45372 transitions. [2021-11-05 20:54:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 20:54:50,995 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:50,996 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:54:50,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:54:50,996 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:54:50,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:50,997 INFO L85 PathProgramCache]: Analyzing trace with hash -40188606, now seen corresponding path program 1 times [2021-11-05 20:54:50,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:50,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78373432] [2021-11-05 20:54:50,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:50,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:51,287 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 20:54:51,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:51,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78373432] [2021-11-05 20:54:51,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78373432] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:51,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:51,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:51,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566445305] [2021-11-05 20:54:51,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:51,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:51,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:51,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:51,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:51,289 INFO L87 Difference]: Start difference. First operand 35167 states and 45372 transitions. Second operand has 3 states, 3 states have (on average 26.0) 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 20:54:53,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:54,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:54,210 INFO L93 Difference]: Finished difference Result 87209 states and 112611 transitions. [2021-11-05 20:54:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:54,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) 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 78 [2021-11-05 20:54:54,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:54,335 INFO L225 Difference]: With dead ends: 87209 [2021-11-05 20:54:54,336 INFO L226 Difference]: Without dead ends: 52305 [2021-11-05 20:54:54,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:54,414 INFO L933 BasicCegarLoop]: 13039 mSDtfsCounter, 6391 mSDsluCounter, 6629 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2261.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6391 SdHoareTripleChecker+Valid, 19668 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.48ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2353.70ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:54,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6391 Valid, 19668 Invalid, 32 Unknown, 0 Unchecked, 11.48ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2353.70ms Time] [2021-11-05 20:54:54,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52305 states. [2021-11-05 20:54:55,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52305 to 52212. [2021-11-05 20:54:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52212 states, 52151 states have (on average 1.2928419397518744) internal successors, (67423), 52211 states have internal predecessors, (67423), 0 states have call successors, (0), 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 20:54:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52212 states to 52212 states and 67423 transitions. [2021-11-05 20:54:56,027 INFO L78 Accepts]: Start accepts. Automaton has 52212 states and 67423 transitions. Word has length 78 [2021-11-05 20:54:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:56,029 INFO L470 AbstractCegarLoop]: Abstraction has 52212 states and 67423 transitions. [2021-11-05 20:54:56,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) 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 20:54:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 52212 states and 67423 transitions. [2021-11-05 20:54:56,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 20:54:56,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:56,032 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] [2021-11-05 20:54:56,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:54:56,033 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:54:56,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1693939489, now seen corresponding path program 1 times [2021-11-05 20:54:56,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:56,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115670630] [2021-11-05 20:54:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:56,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:56,487 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 20:54:56,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:56,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115670630] [2021-11-05 20:54:56,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115670630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:56,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:56,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:56,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596112139] [2021-11-05 20:54:56,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:56,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:54:56,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:56,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:54:56,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:54:56,489 INFO L87 Difference]: Start difference. First operand 52212 states and 67423 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 20:54:57,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:57,952 INFO L93 Difference]: Finished difference Result 52212 states and 67423 transitions. [2021-11-05 20:54:57,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:54:57,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 78 [2021-11-05 20:54:57,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:58,060 INFO L225 Difference]: With dead ends: 52212 [2021-11-05 20:54:58,061 INFO L226 Difference]: Without dead ends: 52206 [2021-11-05 20:54:58,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 118.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:54:58,078 INFO L933 BasicCegarLoop]: 6692 mSDtfsCounter, 6635 mSDsluCounter, 6587 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 523.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6635 SdHoareTripleChecker+Valid, 13279 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.00ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 553.42ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:58,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6635 Valid, 13279 Invalid, 115 Unknown, 0 Unchecked, 24.00ms Time], IncrementalHoareTripleChecker [37 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 553.42ms Time] [2021-11-05 20:54:58,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52206 states. [2021-11-05 20:54:59,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52206 to 52206. [2021-11-05 20:54:59,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52206 states, 52148 states have (on average 1.2928012579581192) internal successors, (67417), 52205 states have internal predecessors, (67417), 0 states have call successors, (0), 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 20:54:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52206 states to 52206 states and 67417 transitions. [2021-11-05 20:54:59,253 INFO L78 Accepts]: Start accepts. Automaton has 52206 states and 67417 transitions. Word has length 78 [2021-11-05 20:54:59,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:59,253 INFO L470 AbstractCegarLoop]: Abstraction has 52206 states and 67417 transitions. [2021-11-05 20:54:59,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 20:54:59,254 INFO L276 IsEmpty]: Start isEmpty. Operand 52206 states and 67417 transitions. [2021-11-05 20:54:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-05 20:54:59,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:59,255 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] [2021-11-05 20:54:59,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:54:59,255 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:54:59,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:59,256 INFO L85 PathProgramCache]: Analyzing trace with hash 83393220, now seen corresponding path program 1 times [2021-11-05 20:54:59,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:59,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707629172] [2021-11-05 20:54:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:59,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:59,773 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 20:54:59,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:59,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707629172] [2021-11-05 20:54:59,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707629172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:59,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:59,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:59,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099095165] [2021-11-05 20:54:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:59,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:54:59,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:54:59,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:54:59,775 INFO L87 Difference]: Start difference. First operand 52206 states and 67417 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:55:01,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:55:01,252 INFO L93 Difference]: Finished difference Result 52206 states and 67417 transitions. [2021-11-05 20:55:01,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:55:01,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-05 20:55:01,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:55:01,380 INFO L225 Difference]: With dead ends: 52206 [2021-11-05 20:55:01,381 INFO L226 Difference]: Without dead ends: 52200 [2021-11-05 20:55:01,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 113.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:55:01,405 INFO L933 BasicCegarLoop]: 6686 mSDtfsCounter, 6624 mSDsluCounter, 6584 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 516.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6624 SdHoareTripleChecker+Valid, 13270 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.15ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 548.16ms IncrementalHoareTripleChecker+Time [2021-11-05 20:55:01,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6624 Valid, 13270 Invalid, 115 Unknown, 0 Unchecked, 18.15ms Time], IncrementalHoareTripleChecker [40 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 548.16ms Time] [2021-11-05 20:55:01,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52200 states. [2021-11-05 20:55:02,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52200 to 52200. [2021-11-05 20:55:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52200 states, 52145 states have (on average 1.2927605714833637) internal successors, (67411), 52199 states have internal predecessors, (67411), 0 states have call successors, (0), 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 20:55:02,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52200 states to 52200 states and 67411 transitions. [2021-11-05 20:55:02,808 INFO L78 Accepts]: Start accepts. Automaton has 52200 states and 67411 transitions. Word has length 80 [2021-11-05 20:55:02,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:55:02,808 INFO L470 AbstractCegarLoop]: Abstraction has 52200 states and 67411 transitions. [2021-11-05 20:55:02,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:55:02,809 INFO L276 IsEmpty]: Start isEmpty. Operand 52200 states and 67411 transitions. [2021-11-05 20:55:02,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 20:55:02,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:55:02,812 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] [2021-11-05 20:55:02,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:55:02,812 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:55:02,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:55:02,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1463344409, now seen corresponding path program 1 times [2021-11-05 20:55:02,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:55:02,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310625146] [2021-11-05 20:55:02,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:55:02,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:55:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:55:03,147 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 20:55:03,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:55:03,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310625146] [2021-11-05 20:55:03,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310625146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:55:03,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:55:03,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:55:03,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191740453] [2021-11-05 20:55:03,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:55:03,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:55:03,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:55:03,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:55:03,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:55:03,149 INFO L87 Difference]: Start difference. First operand 52200 states and 67411 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 20:55:04,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:55:04,731 INFO L93 Difference]: Finished difference Result 52200 states and 67411 transitions. [2021-11-05 20:55:04,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:55:04,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 82 [2021-11-05 20:55:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:55:04,818 INFO L225 Difference]: With dead ends: 52200 [2021-11-05 20:55:04,818 INFO L226 Difference]: Without dead ends: 52194 [2021-11-05 20:55:04,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 114.39ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:55:04,838 INFO L933 BasicCegarLoop]: 6680 mSDtfsCounter, 6616 mSDsluCounter, 6581 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 496.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6616 SdHoareTripleChecker+Valid, 13261 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.36ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 524.03ms IncrementalHoareTripleChecker+Time [2021-11-05 20:55:04,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6616 Valid, 13261 Invalid, 112 Unknown, 0 Unchecked, 16.36ms Time], IncrementalHoareTripleChecker [40 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 524.03ms Time] [2021-11-05 20:55:04,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52194 states. [2021-11-05 20:55:05,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52194 to 52194. [2021-11-05 20:55:06,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52194 states, 52142 states have (on average 1.2927198803267999) internal successors, (67405), 52193 states have internal predecessors, (67405), 0 states have call successors, (0), 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 20:55:06,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52194 states to 52194 states and 67405 transitions. [2021-11-05 20:55:06,111 INFO L78 Accepts]: Start accepts. Automaton has 52194 states and 67405 transitions. Word has length 82 [2021-11-05 20:55:06,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:55:06,111 INFO L470 AbstractCegarLoop]: Abstraction has 52194 states and 67405 transitions. [2021-11-05 20:55:06,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 20:55:06,112 INFO L276 IsEmpty]: Start isEmpty. Operand 52194 states and 67405 transitions. [2021-11-05 20:55:06,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-05 20:55:06,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:55:06,114 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] [2021-11-05 20:55:06,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:55:06,114 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:55:06,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:55:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1819521142, now seen corresponding path program 1 times [2021-11-05 20:55:06,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:55:06,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355936849] [2021-11-05 20:55:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:55:06,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:55:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:55:06,638 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 20:55:06,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:55:06,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355936849] [2021-11-05 20:55:06,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355936849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:55:06,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:55:06,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:55:06,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095365172] [2021-11-05 20:55:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:55:06,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:55:06,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:55:06,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:55:06,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:55:06,640 INFO L87 Difference]: Start difference. First operand 52194 states and 67405 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 20:55:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:55:08,070 INFO L93 Difference]: Finished difference Result 52194 states and 67405 transitions. [2021-11-05 20:55:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:55:08,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 84 [2021-11-05 20:55:08,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:55:08,159 INFO L225 Difference]: With dead ends: 52194 [2021-11-05 20:55:08,159 INFO L226 Difference]: Without dead ends: 52188 [2021-11-05 20:55:08,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:55:08,179 INFO L933 BasicCegarLoop]: 6674 mSDtfsCounter, 6608 mSDsluCounter, 6578 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 457.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6608 SdHoareTripleChecker+Valid, 13252 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.43ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 483.69ms IncrementalHoareTripleChecker+Time [2021-11-05 20:55:08,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6608 Valid, 13252 Invalid, 109 Unknown, 0 Unchecked, 13.43ms Time], IncrementalHoareTripleChecker [40 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 483.69ms Time] [2021-11-05 20:55:08,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52188 states. [2021-11-05 20:55:09,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52188 to 52188. [2021-11-05 20:55:09,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52188 states, 52139 states have (on average 1.2926791844876195) internal successors, (67399), 52187 states have internal predecessors, (67399), 0 states have call successors, (0), 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 20:55:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52188 states to 52188 states and 67399 transitions. [2021-11-05 20:55:09,433 INFO L78 Accepts]: Start accepts. Automaton has 52188 states and 67399 transitions. Word has length 84 [2021-11-05 20:55:09,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:55:09,433 INFO L470 AbstractCegarLoop]: Abstraction has 52188 states and 67399 transitions. [2021-11-05 20:55:09,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 20:55:09,433 INFO L276 IsEmpty]: Start isEmpty. Operand 52188 states and 67399 transitions. [2021-11-05 20:55:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-05 20:55:09,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:55:09,436 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] [2021-11-05 20:55:09,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 20:55:09,436 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:55:09,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:55:09,437 INFO L85 PathProgramCache]: Analyzing trace with hash -507977555, now seen corresponding path program 1 times [2021-11-05 20:55:09,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:55:09,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857539391] [2021-11-05 20:55:09,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:55:09,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:55:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:55:09,768 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 20:55:09,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:55:09,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857539391] [2021-11-05 20:55:09,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857539391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:55:09,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:55:09,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:55:09,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712571074] [2021-11-05 20:55:09,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:55:09,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:55:09,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:55:09,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:55:09,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:55:09,770 INFO L87 Difference]: Start difference. First operand 52188 states and 67399 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 20:55:11,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:55:11,367 INFO L93 Difference]: Finished difference Result 52188 states and 67399 transitions. [2021-11-05 20:55:11,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:55:11,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-05 20:55:11,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:55:11,454 INFO L225 Difference]: With dead ends: 52188 [2021-11-05 20:55:11,454 INFO L226 Difference]: Without dead ends: 52182 [2021-11-05 20:55:11,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 114.15ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:55:11,476 INFO L933 BasicCegarLoop]: 6668 mSDtfsCounter, 6600 mSDsluCounter, 6575 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 433.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6600 SdHoareTripleChecker+Valid, 13243 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.15ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 457.67ms IncrementalHoareTripleChecker+Time [2021-11-05 20:55:11,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6600 Valid, 13243 Invalid, 106 Unknown, 0 Unchecked, 14.15ms Time], IncrementalHoareTripleChecker [40 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 457.67ms Time] [2021-11-05 20:55:11,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52182 states. [2021-11-05 20:55:12,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52182 to 52182. [2021-11-05 20:55:12,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52182 states, 52136 states have (on average 1.2926384839650147) internal successors, (67393), 52181 states have internal predecessors, (67393), 0 states have call successors, (0), 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 20:55:12,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52182 states to 52182 states and 67393 transitions. [2021-11-05 20:55:12,922 INFO L78 Accepts]: Start accepts. Automaton has 52182 states and 67393 transitions. Word has length 86 [2021-11-05 20:55:12,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:55:12,923 INFO L470 AbstractCegarLoop]: Abstraction has 52182 states and 67393 transitions. [2021-11-05 20:55:12,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 20:55:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 52182 states and 67393 transitions. [2021-11-05 20:55:12,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-05 20:55:12,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:55:12,925 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] [2021-11-05 20:55:12,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 20:55:12,925 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:55:12,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:55:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1459992144, now seen corresponding path program 1 times [2021-11-05 20:55:12,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:55:12,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590166428] [2021-11-05 20:55:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:55:12,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:55:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:55:13,295 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 20:55:13,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:55:13,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590166428] [2021-11-05 20:55:13,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590166428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:55:13,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:55:13,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:55:13,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177645484] [2021-11-05 20:55:13,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:55:13,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:55:13,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:55:13,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:55:13,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:55:13,297 INFO L87 Difference]: Start difference. First operand 52182 states and 67393 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 20:55:14,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:55:14,961 INFO L93 Difference]: Finished difference Result 52182 states and 67393 transitions. [2021-11-05 20:55:14,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:55:14,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 88 [2021-11-05 20:55:14,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:55:15,048 INFO L225 Difference]: With dead ends: 52182 [2021-11-05 20:55:15,048 INFO L226 Difference]: Without dead ends: 52176 [2021-11-05 20:55:15,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 121.44ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:55:15,065 INFO L933 BasicCegarLoop]: 6662 mSDtfsCounter, 6592 mSDsluCounter, 6572 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 420.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6592 SdHoareTripleChecker+Valid, 13234 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.23ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 445.29ms IncrementalHoareTripleChecker+Time [2021-11-05 20:55:15,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6592 Valid, 13234 Invalid, 103 Unknown, 0 Unchecked, 15.23ms Time], IncrementalHoareTripleChecker [40 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 445.29ms Time] [2021-11-05 20:55:15,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52176 states. [2021-11-05 20:55:16,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52176 to 52176. [2021-11-05 20:55:16,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52176 states, 52133 states have (on average 1.2925977787581762) internal successors, (67387), 52175 states have internal predecessors, (67387), 0 states have call successors, (0), 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 20:55:16,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52176 states to 52176 states and 67387 transitions. [2021-11-05 20:55:16,509 INFO L78 Accepts]: Start accepts. Automaton has 52176 states and 67387 transitions. Word has length 88 [2021-11-05 20:55:16,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:55:16,510 INFO L470 AbstractCegarLoop]: Abstraction has 52176 states and 67387 transitions. [2021-11-05 20:55:16,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 20:55:16,510 INFO L276 IsEmpty]: Start isEmpty. Operand 52176 states and 67387 transitions. [2021-11-05 20:55:16,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 20:55:16,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:55:16,512 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] [2021-11-05 20:55:16,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 20:55:16,513 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:55:16,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:55:16,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1401704333, now seen corresponding path program 1 times [2021-11-05 20:55:16,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:55:16,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228138088] [2021-11-05 20:55:16,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:55:16,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:55:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:55:16,861 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 20:55:16,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:55:16,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228138088] [2021-11-05 20:55:16,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228138088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:55:16,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:55:16,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:55:16,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611492597] [2021-11-05 20:55:16,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:55:16,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:55:16,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:55:16,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:55:16,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:55:16,863 INFO L87 Difference]: Start difference. First operand 52176 states and 67387 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 20:55:18,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:55:18,572 INFO L93 Difference]: Finished difference Result 52176 states and 67387 transitions. [2021-11-05 20:55:18,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:55:18,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 90 [2021-11-05 20:55:18,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:55:18,656 INFO L225 Difference]: With dead ends: 52176 [2021-11-05 20:55:18,656 INFO L226 Difference]: Without dead ends: 52170 [2021-11-05 20:55:18,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 116.44ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:55:18,674 INFO L933 BasicCegarLoop]: 6656 mSDtfsCounter, 6584 mSDsluCounter, 6569 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 403.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6584 SdHoareTripleChecker+Valid, 13225 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.60ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 426.87ms IncrementalHoareTripleChecker+Time [2021-11-05 20:55:18,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6584 Valid, 13225 Invalid, 100 Unknown, 0 Unchecked, 14.60ms Time], IncrementalHoareTripleChecker [40 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 426.87ms Time] [2021-11-05 20:55:18,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52170 states. [2021-11-05 20:55:20,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52170 to 52170. [2021-11-05 20:55:20,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52170 states, 52130 states have (on average 1.2925570688662957) internal successors, (67381), 52169 states have internal predecessors, (67381), 0 states have call successors, (0), 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 20:55:20,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52170 states to 52170 states and 67381 transitions. [2021-11-05 20:55:20,162 INFO L78 Accepts]: Start accepts. Automaton has 52170 states and 67381 transitions. Word has length 90 [2021-11-05 20:55:20,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:55:20,162 INFO L470 AbstractCegarLoop]: Abstraction has 52170 states and 67381 transitions. [2021-11-05 20:55:20,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 20:55:20,163 INFO L276 IsEmpty]: Start isEmpty. Operand 52170 states and 67381 transitions. [2021-11-05 20:55:20,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-05 20:55:20,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:55:20,165 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] [2021-11-05 20:55:20,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 20:55:20,165 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-05 20:55:20,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:55:20,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1582018326, now seen corresponding path program 1 times [2021-11-05 20:55:20,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:55:20,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926045044] [2021-11-05 20:55:20,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:55:20,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:55:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:55:20,523 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 20:55:20,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:55:20,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926045044] [2021-11-05 20:55:20,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926045044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:55:20,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:55:20,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:55:20,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934149750] [2021-11-05 20:55:20,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:55:20,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:55:20,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:55:20,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:55:20,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:55:20,525 INFO L87 Difference]: Start difference. First operand 52170 states and 67381 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)