./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-mutex_drivers-media-rc-imon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-mutex_drivers-media-rc-imon.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 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 09:38:47,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 09:38:47,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 09:38:47,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 09:38:47,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 09:38:47,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 09:38:47,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 09:38:47,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 09:38:47,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 09:38:47,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 09:38:47,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 09:38:47,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 09:38:47,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 09:38:47,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 09:38:47,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 09:38:47,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 09:38:47,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 09:38:47,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 09:38:47,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 09:38:47,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 09:38:47,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 09:38:47,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 09:38:47,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 09:38:47,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 09:38:47,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 09:38:47,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 09:38:47,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 09:38:47,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 09:38:47,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 09:38:47,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 09:38:47,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 09:38:47,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 09:38:47,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 09:38:47,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 09:38:47,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 09:38:47,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 09:38:47,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 09:38:47,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 09:38:47,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 09:38:47,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 09:38:47,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 09:38:47,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 09:38:47,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 09:38:47,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 09:38:47,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 09:38:47,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 09:38:47,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 09:38:47,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 09:38:47,183 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 09:38:47,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 09:38:47,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 09:38:47,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 09:38:47,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 09:38:47,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 09:38:47,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 09:38:47,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 09:38:47,184 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 09:38:47,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 09:38:47,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 09:38:47,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 09:38:47,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 09:38:47,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:38:47,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 09:38:47,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 09:38:47,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 09:38:47,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 09:38:47,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 09:38:47,185 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 09:38:47,185 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 09:38:47,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 09:38:47,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 09:38:47,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 [2021-11-04 09:38:47,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 09:38:47,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 09:38:47,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 09:38:47,387 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 09:38:47,388 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 09:38:47,389 INFO L432 ainManager$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-mutex_drivers-media-rc-imon.cil.i [2021-11-04 09:38:47,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b53abe87/481adda098c6462ab6d3741f5f29e7c3/FLAGf2fc1805a [2021-11-04 09:38:48,012 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 09:38:48,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-04 09:38:48,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b53abe87/481adda098c6462ab6d3741f5f29e7c3/FLAGf2fc1805a [2021-11-04 09:38:48,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b53abe87/481adda098c6462ab6d3741f5f29e7c3 [2021-11-04 09:38:48,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 09:38:48,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 09:38:48,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 09:38:48,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 09:38:48,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 09:38:48,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:38:48" (1/1) ... [2021-11-04 09:38:48,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a902b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:48, skipping insertion in model container [2021-11-04 09:38:48,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:38:48" (1/1) ... [2021-11-04 09:38:48,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 09:38:48,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 09:38:49,690 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-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2021-11-04 09:38:49,692 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-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2021-11-04 09:38:49,693 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-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2021-11-04 09:38:49,693 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-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2021-11-04 09:38:49,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:38:49,742 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 09:38:49,974 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-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2021-11-04 09:38:49,975 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-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2021-11-04 09:38:49,975 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-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2021-11-04 09:38:49,975 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-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2021-11-04 09:38:49,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 09:38:50,048 INFO L208 MainTranslator]: Completed translation [2021-11-04 09:38:50,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50 WrapperNode [2021-11-04 09:38:50,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 09:38:50,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 09:38:50,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 09:38:50,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 09:38:50,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 09:38:50,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 09:38:50,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 09:38:50,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 09:38:50,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 09:38:50,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 09:38:50,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 09:38:50,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 09:38:50,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (1/1) ... [2021-11-04 09:38:50,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 09:38:50,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:38:50,719 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) [2021-11-04 09:38:50,724 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 [2021-11-04 09:38:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-04 09:38:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 09:38:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 09:38:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 09:38:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 09:38:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 09:38:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 09:38:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 09:38:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 09:38:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 09:38:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 09:38:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 09:38:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 09:38:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 09:38:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 09:38:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 09:38:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 09:39:00,470 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 09:39:00,471 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-04 09:39:00,471 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-04 09:39:00,471 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 09:39:00,472 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 09:39:00,472 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 09:39:00,488 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 09:39:00,488 INFO L299 CfgBuilder]: Removed 2079 assume(true) statements. [2021-11-04 09:39:00,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:39:00 BoogieIcfgContainer [2021-11-04 09:39:00,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 09:39:00,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 09:39:00,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 09:39:00,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 09:39:00,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 09:38:48" (1/3) ... [2021-11-04 09:39:00,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7059aae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:39:00, skipping insertion in model container [2021-11-04 09:39:00,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:38:50" (2/3) ... [2021-11-04 09:39:00,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7059aae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:39:00, skipping insertion in model container [2021-11-04 09:39:00,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:39:00" (3/3) ... [2021-11-04 09:39:00,498 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-04 09:39:00,502 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 09:39:00,502 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2021-11-04 09:39:00,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 09:39:00,538 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 [2021-11-04 09:39:00,538 INFO L340 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2021-11-04 09:39:00,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 2345 states, 2279 states have (on average 1.3878894251864853) internal successors, (3163), 2344 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:39:00,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-04 09:39:00,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:39:00,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:39:00,575 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-04 09:39:00,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:39:00,578 INFO L85 PathProgramCache]: Analyzing trace with hash 498865296, now seen corresponding path program 1 times [2021-11-04 09:39:00,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:39:00,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381656264] [2021-11-04 09:39:00,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:39:00,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:39:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:39:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:39:01,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:39:01,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381656264] [2021-11-04 09:39:01,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381656264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:39:01,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:39:01,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:39:01,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98574398] [2021-11-04 09:39:01,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:39:01,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:39:01,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:39:01,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:39:01,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:39:01,118 INFO L87 Difference]: Start difference. First operand has 2345 states, 2279 states have (on average 1.3878894251864853) internal successors, (3163), 2344 states have internal predecessors, (3163), 0 states have call successors, (0), 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 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:39:03,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:15,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:19,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:26,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:29,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:33,251 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:34,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:36,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:39,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:46,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:50,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:52,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:55,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:39:57,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:00,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:02,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:05,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:07,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:12,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:16,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:18,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:22,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:25,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:31,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:35,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:37,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:40,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:40:40,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:40:40,530 INFO L93 Difference]: Finished difference Result 6048 states and 8151 transitions. [2021-11-04 09:40:40,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:40:40,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-04 09:40:40,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:40:40,590 INFO L225 Difference]: With dead ends: 6048 [2021-11-04 09:40:40,590 INFO L226 Difference]: Without dead ends: 3635 [2021-11-04 09:40:40,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:40:40,608 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 2182 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 5327 mSolverCounterSat, 12 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94292.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 5357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 65.51ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 5327 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98620.52ms IncrementalHoareTripleChecker+Time [2021-11-04 09:40:40,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2182 Valid, 318 Invalid, 5357 Unknown, 0 Unchecked, 65.51ms Time], IncrementalHoareTripleChecker [12 Valid, 5327 Invalid, 18 Unknown, 0 Unchecked, 98620.52ms Time] [2021-11-04 09:40:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2021-11-04 09:40:40,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3470. [2021-11-04 09:40:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 3404 states have (on average 1.2840775558166861) internal successors, (4371), 3469 states have internal predecessors, (4371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:40:40,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 4371 transitions. [2021-11-04 09:40:40,741 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 4371 transitions. Word has length 72 [2021-11-04 09:40:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:40:40,743 INFO L470 AbstractCegarLoop]: Abstraction has 3470 states and 4371 transitions. [2021-11-04 09:40:40,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:40:40,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 4371 transitions. [2021-11-04 09:40:40,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-04 09:40:40,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:40:40,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:40:40,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 09:40:40,755 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-04 09:40:40,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:40:40,757 INFO L85 PathProgramCache]: Analyzing trace with hash 331656513, now seen corresponding path program 1 times [2021-11-04 09:40:40,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:40:40,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252850588] [2021-11-04 09:40:40,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:40:40,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:40:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:40:41,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:40:41,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:40:41,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252850588] [2021-11-04 09:40:41,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252850588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:40:41,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:40:41,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:40:41,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340638462] [2021-11-04 09:40:41,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:40:41,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:40:41,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:40:41,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:40:41,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:40:41,087 INFO L87 Difference]: Start difference. First operand 3470 states and 4371 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) 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) [2021-11-04 09:40:43,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:00,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:07,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:08,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:10,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:12,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:13,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:22,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:27,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:29,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:30,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:33,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:35,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:38,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:42,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:45,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:47,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:49,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:51,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:53,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:55,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:56,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:41:59,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:01,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:02,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:11,153 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:14,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:16,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:17,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:18,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:42:18,008 INFO L93 Difference]: Finished difference Result 9474 states and 11988 transitions. [2021-11-04 09:42:18,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:42:18,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) 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 73 [2021-11-04 09:42:18,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:42:18,026 INFO L225 Difference]: With dead ends: 9474 [2021-11-04 09:42:18,027 INFO L226 Difference]: Without dead ends: 6160 [2021-11-04 09:42:18,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:42:18,033 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1898 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 5288 mSolverCounterSat, 12 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92919.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.66ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 5288 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96367.99ms IncrementalHoareTripleChecker+Time [2021-11-04 09:42:18,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1898 Valid, 0 Invalid, 5311 Unknown, 0 Unchecked, 44.66ms Time], IncrementalHoareTripleChecker [12 Valid, 5288 Invalid, 11 Unknown, 0 Unchecked, 96367.99ms Time] [2021-11-04 09:42:18,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6160 states. [2021-11-04 09:42:18,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6160 to 6000. [2021-11-04 09:42:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6000 states, 5934 states have (on average 1.2901921132457028) internal successors, (7656), 5999 states have internal predecessors, (7656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:42:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6000 states to 6000 states and 7656 transitions. [2021-11-04 09:42:18,258 INFO L78 Accepts]: Start accepts. Automaton has 6000 states and 7656 transitions. Word has length 73 [2021-11-04 09:42:18,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:42:18,260 INFO L470 AbstractCegarLoop]: Abstraction has 6000 states and 7656 transitions. [2021-11-04 09:42:18,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) 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) [2021-11-04 09:42:18,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6000 states and 7656 transitions. [2021-11-04 09:42:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-04 09:42:18,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:42:18,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:42:18,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 09:42:18,262 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-04 09:42:18,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:42:18,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1304334253, now seen corresponding path program 1 times [2021-11-04 09:42:18,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:42:18,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012528071] [2021-11-04 09:42:18,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:42:18,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:42:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:42:18,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:42:18,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:42:18,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012528071] [2021-11-04 09:42:18,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012528071] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:42:18,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:42:18,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:42:18,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964961852] [2021-11-04 09:42:18,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:42:18,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:42:18,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:42:18,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:42:18,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:42:18,517 INFO L87 Difference]: Start difference. First operand 6000 states and 7656 transitions. Second operand has 3 states, 3 states have (on average 25.0) 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) [2021-11-04 09:42:20,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:30,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:36,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:41,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:46,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:49,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:52,056 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:53,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:42:57,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:01,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:03,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:04,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:06,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:12,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:17,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:21,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:24,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:26,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:29,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:32,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:34,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:36,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:39,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:41,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:44,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:47,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:51,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:54,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:55,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:43:59,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:02,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:06,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:10,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:14,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:16,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:44:16,761 INFO L93 Difference]: Finished difference Result 17424 states and 22334 transitions. [2021-11-04 09:44:16,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:44:16,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) 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 75 [2021-11-04 09:44:16,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:44:16,792 INFO L225 Difference]: With dead ends: 17424 [2021-11-04 09:44:16,793 INFO L226 Difference]: Without dead ends: 11580 [2021-11-04 09:44:16,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:44:16,803 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2193 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 5656 mSolverCounterSat, 9 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113512.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.60ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 5656 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117647.38ms IncrementalHoareTripleChecker+Time [2021-11-04 09:44:16,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2193 Valid, 0 Invalid, 5680 Unknown, 0 Unchecked, 32.60ms Time], IncrementalHoareTripleChecker [9 Valid, 5656 Invalid, 15 Unknown, 0 Unchecked, 117647.38ms Time] [2021-11-04 09:44:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11580 states. [2021-11-04 09:44:16,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11580 to 11478. [2021-11-04 09:44:16,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11478 states, 11412 states have (on average 1.2939011566771819) internal successors, (14766), 11477 states have internal predecessors, (14766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:44:17,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11478 states to 11478 states and 14766 transitions. [2021-11-04 09:44:17,014 INFO L78 Accepts]: Start accepts. Automaton has 11478 states and 14766 transitions. Word has length 75 [2021-11-04 09:44:17,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:44:17,016 INFO L470 AbstractCegarLoop]: Abstraction has 11478 states and 14766 transitions. [2021-11-04 09:44:17,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) 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) [2021-11-04 09:44:17,016 INFO L276 IsEmpty]: Start isEmpty. Operand 11478 states and 14766 transitions. [2021-11-04 09:44:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-04 09:44:17,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:44:17,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:44:17,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 09:44:17,019 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-04 09:44:17,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:44:17,019 INFO L85 PathProgramCache]: Analyzing trace with hash -181662950, now seen corresponding path program 1 times [2021-11-04 09:44:17,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:44:17,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563399225] [2021-11-04 09:44:17,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:44:17,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:44:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:44:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:44:17,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:44:17,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563399225] [2021-11-04 09:44:17,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563399225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:44:17,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:44:17,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:44:17,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538412706] [2021-11-04 09:44:17,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:44:17,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:44:17,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:44:17,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:44:17,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:44:17,318 INFO L87 Difference]: Start difference. First operand 11478 states and 14766 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) [2021-11-04 09:44:19,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:43,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:46,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:53,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:56,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:44:59,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:01,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:04,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:07,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:12,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:20,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:22,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:25,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:27,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:28,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:32,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:34,311 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:38,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:40,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:45,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:45:48,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:45:48,666 INFO L93 Difference]: Finished difference Result 28016 states and 36143 transitions. [2021-11-04 09:45:48,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:45:48,667 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 [2021-11-04 09:45:48,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:45:48,704 INFO L225 Difference]: With dead ends: 28016 [2021-11-04 09:45:48,704 INFO L226 Difference]: Without dead ends: 16694 [2021-11-04 09:45:48,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:45:48,719 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1307 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 5000 mSolverCounterSat, 16 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87309.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.41ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5000 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90776.34ms IncrementalHoareTripleChecker+Time [2021-11-04 09:45:48,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1307 Valid, 0 Invalid, 5024 Unknown, 0 Unchecked, 28.41ms Time], IncrementalHoareTripleChecker [16 Valid, 5000 Invalid, 8 Unknown, 0 Unchecked, 90776.34ms Time] [2021-11-04 09:45:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16694 states. [2021-11-04 09:45:48,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16694 to 16504. [2021-11-04 09:45:48,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16504 states, 16438 states have (on average 1.2964472563572211) internal successors, (21311), 16503 states have internal predecessors, (21311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:45:48,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16504 states to 16504 states and 21311 transitions. [2021-11-04 09:45:48,977 INFO L78 Accepts]: Start accepts. Automaton has 16504 states and 21311 transitions. Word has length 78 [2021-11-04 09:45:48,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:45:48,978 INFO L470 AbstractCegarLoop]: Abstraction has 16504 states and 21311 transitions. [2021-11-04 09:45:48,979 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) [2021-11-04 09:45:48,979 INFO L276 IsEmpty]: Start isEmpty. Operand 16504 states and 21311 transitions. [2021-11-04 09:45:48,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-04 09:45:48,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:45:48,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:45:48,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 09:45:48,981 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-04 09:45:48,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:45:48,987 INFO L85 PathProgramCache]: Analyzing trace with hash -911664211, now seen corresponding path program 1 times [2021-11-04 09:45:48,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:45:48,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470162127] [2021-11-04 09:45:48,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:45:48,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:45:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:45:49,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:45:49,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:45:49,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470162127] [2021-11-04 09:45:49,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470162127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:45:49,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:45:49,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:45:49,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113984135] [2021-11-04 09:45:49,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:45:49,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:45:49,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:45:49,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:45:49,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:45:49,293 INFO L87 Difference]: Start difference. First operand 16504 states and 21311 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) 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) [2021-11-04 09:45:51,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:04,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:12,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:18,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:23,199 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:29,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:32,122 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:34,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:40,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:43,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:46,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:49,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:51,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:55,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:46:58,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:00,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:12,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:18,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:47:18,385 INFO L93 Difference]: Finished difference Result 47104 states and 60903 transitions. [2021-11-04 09:47:18,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:47:18,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) 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 79 [2021-11-04 09:47:18,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:47:18,524 INFO L225 Difference]: With dead ends: 47104 [2021-11-04 09:47:18,539 INFO L226 Difference]: Without dead ends: 30756 [2021-11-04 09:47:18,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:47:18,596 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2120 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 5041 mSolverCounterSat, 7 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84569.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.88ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5041 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88324.10ms IncrementalHoareTripleChecker+Time [2021-11-04 09:47:18,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2120 Valid, 0 Invalid, 5058 Unknown, 0 Unchecked, 28.88ms Time], IncrementalHoareTripleChecker [7 Valid, 5041 Invalid, 10 Unknown, 0 Unchecked, 88324.10ms Time] [2021-11-04 09:47:18,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30756 states. [2021-11-04 09:47:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30756 to 30544. [2021-11-04 09:47:19,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30544 states, 30478 states have (on average 1.2967714416956493) internal successors, (39523), 30543 states have internal predecessors, (39523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:47:19,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30544 states to 30544 states and 39523 transitions. [2021-11-04 09:47:19,226 INFO L78 Accepts]: Start accepts. Automaton has 30544 states and 39523 transitions. Word has length 79 [2021-11-04 09:47:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:47:19,226 INFO L470 AbstractCegarLoop]: Abstraction has 30544 states and 39523 transitions. [2021-11-04 09:47:19,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) 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) [2021-11-04 09:47:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 30544 states and 39523 transitions. [2021-11-04 09:47:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-04 09:47:19,227 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:47:19,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:47:19,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 09:47:19,228 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-04 09:47:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:47:19,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1230006174, now seen corresponding path program 1 times [2021-11-04 09:47:19,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:47:19,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658153002] [2021-11-04 09:47:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:47:19,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:47:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:47:19,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:47:19,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:47:19,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658153002] [2021-11-04 09:47:19,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658153002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:47:19,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:47:19,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:47:19,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193801313] [2021-11-04 09:47:19,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:47:19,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:47:19,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:47:19,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:47:19,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:47:19,456 INFO L87 Difference]: Start difference. First operand 30544 states and 39523 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:47:21,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:38,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:41,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:43,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:44,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:46,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:51,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:54,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:47:57,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:00,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:02,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:04,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:10,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:14,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:18,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:21,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:26,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:29,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:32,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:38,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:41,916 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:44,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:49,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:55,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:48:56,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:48:56,569 INFO L93 Difference]: Finished difference Result 86528 states and 111851 transitions. [2021-11-04 09:48:56,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:48:56,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-04 09:48:56,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:48:56,751 INFO L225 Difference]: With dead ends: 86528 [2021-11-04 09:48:56,751 INFO L226 Difference]: Without dead ends: 56140 [2021-11-04 09:48:56,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:48:56,797 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2077 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 5198 mSolverCounterSat, 7 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91903.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2077 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.36ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5198 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96062.65ms IncrementalHoareTripleChecker+Time [2021-11-04 09:48:56,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2077 Valid, 0 Invalid, 5215 Unknown, 0 Unchecked, 30.36ms Time], IncrementalHoareTripleChecker [7 Valid, 5198 Invalid, 10 Unknown, 0 Unchecked, 96062.65ms Time] [2021-11-04 09:48:56,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56140 states. [2021-11-04 09:48:57,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56140 to 55912. [2021-11-04 09:48:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55912 states, 55846 states have (on average 1.292178490849837) internal successors, (72163), 55911 states have internal predecessors, (72163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:48:58,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55912 states to 55912 states and 72163 transitions. [2021-11-04 09:48:58,002 INFO L78 Accepts]: Start accepts. Automaton has 55912 states and 72163 transitions. Word has length 80 [2021-11-04 09:48:58,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:48:58,003 INFO L470 AbstractCegarLoop]: Abstraction has 55912 states and 72163 transitions. [2021-11-04 09:48:58,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:48:58,003 INFO L276 IsEmpty]: Start isEmpty. Operand 55912 states and 72163 transitions. [2021-11-04 09:48:58,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-04 09:48:58,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:48:58,005 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:48:58,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 09:48:58,006 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-04 09:48:58,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:48:58,007 INFO L85 PathProgramCache]: Analyzing trace with hash 697993521, now seen corresponding path program 1 times [2021-11-04 09:48:58,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:48:58,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419708319] [2021-11-04 09:48:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:48:58,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:48:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:48:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:48:58,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:48:58,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419708319] [2021-11-04 09:48:58,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419708319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:48:58,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:48:58,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:48:58,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395805987] [2021-11-04 09:48:58,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:48:58,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:48:58,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:48:58,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:48:58,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:48:58,235 INFO L87 Difference]: Start difference. First operand 55912 states and 72163 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:49:00,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:14,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:17,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:23,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:25,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:26,978 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:30,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:33,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:38,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:41,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:43,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:47,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:50,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:53,647 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:55,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:57,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:49:59,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:05,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:07,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:11,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:14,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:17,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:18,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:20,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:33,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:36,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:38,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:41,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:41,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:50:41,914 INFO L93 Difference]: Finished difference Result 112768 states and 145575 transitions. [2021-11-04 09:50:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:50:41,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-04 09:50:41,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:50:42,008 INFO L225 Difference]: With dead ends: 112768 [2021-11-04 09:50:42,008 INFO L226 Difference]: Without dead ends: 57012 [2021-11-04 09:50:42,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:50:42,083 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2261 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 5999 mSolverCounterSat, 8 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97503.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.70ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5999 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102249.67ms IncrementalHoareTripleChecker+Time [2021-11-04 09:50:42,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2261 Valid, 0 Invalid, 6018 Unknown, 0 Unchecked, 32.70ms Time], IncrementalHoareTripleChecker [8 Valid, 5999 Invalid, 11 Unknown, 0 Unchecked, 102249.67ms Time] [2021-11-04 09:50:42,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57012 states. [2021-11-04 09:50:43,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57012 to 56724. [2021-11-04 09:50:43,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56724 states, 56658 states have (on average 1.2928800875428006) internal successors, (73252), 56723 states have internal predecessors, (73252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:50:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56724 states to 56724 states and 73252 transitions. [2021-11-04 09:50:43,256 INFO L78 Accepts]: Start accepts. Automaton has 56724 states and 73252 transitions. Word has length 95 [2021-11-04 09:50:43,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:50:43,256 INFO L470 AbstractCegarLoop]: Abstraction has 56724 states and 73252 transitions. [2021-11-04 09:50:43,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:50:43,257 INFO L276 IsEmpty]: Start isEmpty. Operand 56724 states and 73252 transitions. [2021-11-04 09:50:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-04 09:50:43,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:50:43,258 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:50:43,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 09:50:43,259 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-04 09:50:43,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:50:43,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2002323868, now seen corresponding path program 1 times [2021-11-04 09:50:43,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:50:43,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151265711] [2021-11-04 09:50:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:50:43,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:50:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:50:43,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:50:43,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:50:43,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151265711] [2021-11-04 09:50:43,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151265711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:50:43,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:50:43,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:50:43,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878567940] [2021-11-04 09:50:43,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:50:43,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:50:43,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:50:43,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:50:43,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:50:43,533 INFO L87 Difference]: Start difference. First operand 56724 states and 73252 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:50:45,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:50:46,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:02,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:05,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:09,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:11,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:14,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:17,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:23,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:31,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:34,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:35,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:38,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:39,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:41,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:45,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:47,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:50,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:52,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:55,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:51:58,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:00,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:03,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:04,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:06,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:07,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:09,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:13,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:16,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:19,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:22,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:27,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:31,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:37,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:40,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:46,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:49,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:52:51,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:52:51,475 INFO L93 Difference]: Finished difference Result 167210 states and 216305 transitions. [2021-11-04 09:52:51,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:52:51,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2021-11-04 09:52:51,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:52:51,824 INFO L225 Difference]: With dead ends: 167210 [2021-11-04 09:52:51,825 INFO L226 Difference]: Without dead ends: 110722 [2021-11-04 09:52:51,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:52:51,965 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2154 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 6134 mSolverCounterSat, 7 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119826.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2154 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.89ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 6134 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126115.09ms IncrementalHoareTripleChecker+Time [2021-11-04 09:52:51,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2154 Valid, 0 Invalid, 6157 Unknown, 0 Unchecked, 35.89ms Time], IncrementalHoareTripleChecker [7 Valid, 6134 Invalid, 16 Unknown, 0 Unchecked, 126115.09ms Time] [2021-11-04 09:52:52,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110722 states. [2021-11-04 09:52:54,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110722 to 110620. [2021-11-04 09:52:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110620 states, 110554 states have (on average 1.291857372867558) internal successors, (142820), 110619 states have internal predecessors, (142820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:52:54,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110620 states to 110620 states and 142820 transitions. [2021-11-04 09:52:54,720 INFO L78 Accepts]: Start accepts. Automaton has 110620 states and 142820 transitions. Word has length 107 [2021-11-04 09:52:54,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:52:54,720 INFO L470 AbstractCegarLoop]: Abstraction has 110620 states and 142820 transitions. [2021-11-04 09:52:54,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:52:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand 110620 states and 142820 transitions. [2021-11-04 09:52:54,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-04 09:52:54,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:52:54,726 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:52:54,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 09:52:54,726 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-04 09:52:54,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:52:54,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1012779750, now seen corresponding path program 1 times [2021-11-04 09:52:54,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:52:54,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697750542] [2021-11-04 09:52:54,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:52:54,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:52:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:52:55,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:52:55,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:52:55,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697750542] [2021-11-04 09:52:55,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697750542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:52:55,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:52:55,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:52:55,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331743047] [2021-11-04 09:52:55,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:52:55,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:52:55,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:52:55,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:52:55,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:52:55,377 INFO L87 Difference]: Start difference. First operand 110620 states and 142820 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:52:57,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15