./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.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 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 17:33:35,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 17:33:35,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 17:33:35,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 17:33:35,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 17:33:35,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 17:33:35,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 17:33:35,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 17:33:35,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 17:33:35,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 17:33:35,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 17:33:35,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 17:33:35,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 17:33:35,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 17:33:35,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 17:33:35,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 17:33:35,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 17:33:35,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 17:33:35,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 17:33:35,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 17:33:35,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 17:33:35,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 17:33:35,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 17:33:35,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 17:33:35,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 17:33:35,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 17:33:35,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 17:33:35,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 17:33:35,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 17:33:35,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 17:33:35,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 17:33:35,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 17:33:35,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 17:33:35,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 17:33:35,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 17:33:35,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 17:33:35,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 17:33:35,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 17:33:35,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 17:33:35,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 17:33:35,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 17:33:35,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 17:33:35,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 17:33:35,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 17:33:35,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 17:33:35,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 17:33:35,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 17:33:35,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 17:33:35,707 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 17:33:35,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 17:33:35,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 17:33:35,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 17:33:35,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 17:33:35,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 17:33:35,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 17:33:35,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 17:33:35,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 17:33:35,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 17:33:35,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 17:33:35,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 17:33:35,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 17:33:35,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:33:35,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 17:33:35,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 17:33:35,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 17:33:35,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 17:33:35,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 17:33:35,711 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 17:33:35,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 17:33:35,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 17:33:35,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 17:33:35,711 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b [2021-11-05 17:33:35,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 17:33:36,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 17:33:36,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 17:33:36,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 17:33:36,015 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 17:33:36,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-05 17:33:36,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd762f9b/d546b9215c5744b8a08163adaed61bc0/FLAG271a55339 [2021-11-05 17:33:36,591 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 17:33:36,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-05 17:33:36,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd762f9b/d546b9215c5744b8a08163adaed61bc0/FLAG271a55339 [2021-11-05 17:33:37,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd762f9b/d546b9215c5744b8a08163adaed61bc0 [2021-11-05 17:33:37,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 17:33:37,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 17:33:37,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 17:33:37,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 17:33:37,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 17:33:37,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:33:37" (1/1) ... [2021-11-05 17:33:37,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137512eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:37, skipping insertion in model container [2021-11-05 17:33:37,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:33:37" (1/1) ... [2021-11-05 17:33:37,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 17:33:37,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 17:33:37,837 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-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2021-11-05 17:33:37,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:33:37,906 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 17:33:38,024 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-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2021-11-05 17:33:38,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:33:38,068 INFO L208 MainTranslator]: Completed translation [2021-11-05 17:33:38,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38 WrapperNode [2021-11-05 17:33:38,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 17:33:38,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 17:33:38,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 17:33:38,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 17:33:38,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 17:33:38,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 17:33:38,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 17:33:38,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 17:33:38,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 17:33:38,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 17:33:38,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 17:33:38,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 17:33:38,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (1/1) ... [2021-11-05 17:33:38,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:33:38,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:33:38,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 17:33:38,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 17:33:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 17:33:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 17:33:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 17:33:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 17:33:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 17:33:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 17:33:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 17:33:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 17:33:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 17:33:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 17:33:38,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 17:33:39,170 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 17:33:39,170 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-11-05 17:33:39,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:33:39 BoogieIcfgContainer [2021-11-05 17:33:39,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 17:33:39,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 17:33:39,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 17:33:39,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 17:33:39,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 05:33:37" (1/3) ... [2021-11-05 17:33:39,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8f2442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:33:39, skipping insertion in model container [2021-11-05 17:33:39,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:33:38" (2/3) ... [2021-11-05 17:33:39,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8f2442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:33:39, skipping insertion in model container [2021-11-05 17:33:39,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:33:39" (3/3) ... [2021-11-05 17:33:39,178 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-05 17:33:39,182 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 17:33:39,182 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-05 17:33:39,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 17:33:39,220 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 17:33:39,221 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-05 17:33:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 174 states have (on average 1.396551724137931) internal successors, (243), 178 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 17:33:39,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:39,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:33:39,240 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:39,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:39,243 INFO L85 PathProgramCache]: Analyzing trace with hash -218290634, now seen corresponding path program 1 times [2021-11-05 17:33:39,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:39,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039105301] [2021-11-05 17:33:39,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:39,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:39,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:33:39,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:39,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039105301] [2021-11-05 17:33:39,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039105301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:39,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:39,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:33:39,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260331422] [2021-11-05 17:33:39,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:39,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 17:33:39,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:39,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 17:33:39,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 17:33:39,484 INFO L87 Difference]: Start difference. First operand has 179 states, 174 states have (on average 1.396551724137931) internal successors, (243), 178 states have internal predecessors, (243), 0 states have call successors, (0), 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 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:39,530 INFO L93 Difference]: Finished difference Result 354 states and 481 transitions. [2021-11-05 17:33:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 17:33:39,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2021-11-05 17:33:39,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:39,543 INFO L225 Difference]: With dead ends: 354 [2021-11-05 17:33:39,544 INFO L226 Difference]: Without dead ends: 171 [2021-11-05 17:33:39,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 17:33:39,554 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:39,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 3.92ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 17:33:39,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-05 17:33:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-11-05 17:33:39,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.311377245508982) internal successors, (219), 170 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 219 transitions. [2021-11-05 17:33:39,598 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 219 transitions. Word has length 17 [2021-11-05 17:33:39,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:39,598 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 219 transitions. [2021-11-05 17:33:39,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,599 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 219 transitions. [2021-11-05 17:33:39,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 17:33:39,600 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:39,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:33:39,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 17:33:39,600 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:39,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:39,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1229407884, now seen corresponding path program 1 times [2021-11-05 17:33:39,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:39,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783394340] [2021-11-05 17:33:39,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:39,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:33:39,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:39,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783394340] [2021-11-05 17:33:39,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783394340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:39,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:39,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:33:39,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114785250] [2021-11-05 17:33:39,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:39,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:33:39,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:39,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:33:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:39,719 INFO L87 Difference]: Start difference. First operand 171 states and 219 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:39,767 INFO L93 Difference]: Finished difference Result 473 states and 616 transitions. [2021-11-05 17:33:39,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:33:39,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2021-11-05 17:33:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:39,769 INFO L225 Difference]: With dead ends: 473 [2021-11-05 17:33:39,769 INFO L226 Difference]: Without dead ends: 309 [2021-11-05 17:33:39,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:39,771 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 189 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.29ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.35ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:39,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 411 Invalid, 15 Unknown, 0 Unchecked, 2.29ms Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 33.35ms Time] [2021-11-05 17:33:39,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-05 17:33:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-11-05 17:33:39,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 305 states have (on average 1.3147540983606558) internal successors, (401), 308 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 401 transitions. [2021-11-05 17:33:39,785 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 401 transitions. Word has length 17 [2021-11-05 17:33:39,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:39,785 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 401 transitions. [2021-11-05 17:33:39,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,785 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 401 transitions. [2021-11-05 17:33:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 17:33:39,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:39,786 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] [2021-11-05 17:33:39,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 17:33:39,787 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:39,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash 994747557, now seen corresponding path program 1 times [2021-11-05 17:33:39,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:39,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433657525] [2021-11-05 17:33:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:39,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:33:39,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:39,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433657525] [2021-11-05 17:33:39,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433657525] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:39,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:39,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:33:39,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558275416] [2021-11-05 17:33:39,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:39,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:33:39,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:39,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:33:39,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:33:39,883 INFO L87 Difference]: Start difference. First operand 309 states and 401 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:39,935 INFO L93 Difference]: Finished difference Result 778 states and 1008 transitions. [2021-11-05 17:33:39,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:33:39,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-11-05 17:33:39,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:39,938 INFO L225 Difference]: With dead ends: 778 [2021-11-05 17:33:39,938 INFO L226 Difference]: Without dead ends: 476 [2021-11-05 17:33:39,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.46ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:33:39,940 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 627 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.56ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.67ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:39,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 869 Invalid, 25 Unknown, 0 Unchecked, 2.56ms Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 25.67ms Time] [2021-11-05 17:33:39,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-11-05 17:33:39,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 312. [2021-11-05 17:33:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 308 states have (on average 1.3084415584415585) internal successors, (403), 311 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 403 transitions. [2021-11-05 17:33:39,984 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 403 transitions. Word has length 29 [2021-11-05 17:33:39,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:39,984 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 403 transitions. [2021-11-05 17:33:39,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:39,984 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 403 transitions. [2021-11-05 17:33:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 17:33:39,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:39,985 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] [2021-11-05 17:33:39,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 17:33:39,986 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:39,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:39,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1525212377, now seen corresponding path program 1 times [2021-11-05 17:33:39,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:39,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849281134] [2021-11-05 17:33:39,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:39,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:33:40,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:40,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849281134] [2021-11-05 17:33:40,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849281134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:40,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:40,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:33:40,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841447138] [2021-11-05 17:33:40,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:40,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:33:40,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:40,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:33:40,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,048 INFO L87 Difference]: Start difference. First operand 312 states and 403 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:40,071 INFO L93 Difference]: Finished difference Result 911 states and 1186 transitions. [2021-11-05 17:33:40,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:33:40,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2021-11-05 17:33:40,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:40,074 INFO L225 Difference]: With dead ends: 911 [2021-11-05 17:33:40,074 INFO L226 Difference]: Without dead ends: 606 [2021-11-05 17:33:40,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,075 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 187 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.04ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:40,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 472 Invalid, 13 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 9.04ms Time] [2021-11-05 17:33:40,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-05 17:33:40,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2021-11-05 17:33:40,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 602 states have (on average 1.303986710963455) internal successors, (785), 605 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 785 transitions. [2021-11-05 17:33:40,098 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 785 transitions. Word has length 29 [2021-11-05 17:33:40,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:40,098 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 785 transitions. [2021-11-05 17:33:40,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 785 transitions. [2021-11-05 17:33:40,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-05 17:33:40,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:40,099 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] [2021-11-05 17:33:40,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 17:33:40,100 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:40,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:40,100 INFO L85 PathProgramCache]: Analyzing trace with hash -36936870, now seen corresponding path program 1 times [2021-11-05 17:33:40,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:40,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605987266] [2021-11-05 17:33:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:40,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:40,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:33:40,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:40,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605987266] [2021-11-05 17:33:40,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605987266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:40,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:40,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:33:40,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600927137] [2021-11-05 17:33:40,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:40,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:33:40,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:40,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:33:40,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,179 INFO L87 Difference]: Start difference. First operand 606 states and 785 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:40,194 INFO L93 Difference]: Finished difference Result 606 states and 785 transitions. [2021-11-05 17:33:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:33:40,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2021-11-05 17:33:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:40,200 INFO L225 Difference]: With dead ends: 606 [2021-11-05 17:33:40,200 INFO L226 Difference]: Without dead ends: 604 [2021-11-05 17:33:40,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.21ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,203 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.83ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:40,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 216 Invalid, 1 Unknown, 0 Unchecked, 0.44ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.83ms Time] [2021-11-05 17:33:40,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-11-05 17:33:40,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2021-11-05 17:33:40,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 601 states have (on average 1.302828618968386) internal successors, (783), 603 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 783 transitions. [2021-11-05 17:33:40,236 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 783 transitions. Word has length 30 [2021-11-05 17:33:40,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:40,237 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 783 transitions. [2021-11-05 17:33:40,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,237 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 783 transitions. [2021-11-05 17:33:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 17:33:40,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:40,243 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] [2021-11-05 17:33:40,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 17:33:40,244 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:40,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:40,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1145036399, now seen corresponding path program 1 times [2021-11-05 17:33:40,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:40,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230034609] [2021-11-05 17:33:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:40,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:33:40,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:40,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230034609] [2021-11-05 17:33:40,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230034609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:40,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:40,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:33:40,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890046254] [2021-11-05 17:33:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:40,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:33:40,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:40,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:33:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,320 INFO L87 Difference]: Start difference. First operand 604 states and 783 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:40,336 INFO L93 Difference]: Finished difference Result 604 states and 783 transitions. [2021-11-05 17:33:40,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:33:40,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2021-11-05 17:33:40,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:40,339 INFO L225 Difference]: With dead ends: 604 [2021-11-05 17:33:40,339 INFO L226 Difference]: Without dead ends: 602 [2021-11-05 17:33:40,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,341 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 186 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.86ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.77ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:40,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 0.86ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.77ms Time] [2021-11-05 17:33:40,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-11-05 17:33:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2021-11-05 17:33:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 600 states have (on average 1.3016666666666667) internal successors, (781), 601 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 781 transitions. [2021-11-05 17:33:40,368 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 781 transitions. Word has length 31 [2021-11-05 17:33:40,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:40,369 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 781 transitions. [2021-11-05 17:33:40,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 781 transitions. [2021-11-05 17:33:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-05 17:33:40,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:40,370 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] [2021-11-05 17:33:40,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 17:33:40,371 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:40,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:40,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1136383420, now seen corresponding path program 1 times [2021-11-05 17:33:40,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:40,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902139931] [2021-11-05 17:33:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:40,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:33:40,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:40,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902139931] [2021-11-05 17:33:40,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902139931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:40,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:40,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 17:33:40,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125722397] [2021-11-05 17:33:40,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:40,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:33:40,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:33:40,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,415 INFO L87 Difference]: Start difference. First operand 602 states and 781 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:40,429 INFO L93 Difference]: Finished difference Result 602 states and 781 transitions. [2021-11-05 17:33:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:33:40,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2021-11-05 17:33:40,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:40,431 INFO L225 Difference]: With dead ends: 602 [2021-11-05 17:33:40,431 INFO L226 Difference]: Without dead ends: 594 [2021-11-05 17:33:40,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,432 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 183 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:40,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 17:33:40,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-11-05 17:33:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2021-11-05 17:33:40,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 593 states have (on average 1.300168634064081) internal successors, (771), 593 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 771 transitions. [2021-11-05 17:33:40,451 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 771 transitions. Word has length 32 [2021-11-05 17:33:40,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:40,452 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 771 transitions. [2021-11-05 17:33:40,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 771 transitions. [2021-11-05 17:33:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-05 17:33:40,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:40,453 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 17:33:40,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 17:33:40,454 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:40,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:40,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1227674702, now seen corresponding path program 1 times [2021-11-05 17:33:40,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:40,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290482628] [2021-11-05 17:33:40,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:40,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:40,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:33:40,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:40,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290482628] [2021-11-05 17:33:40,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290482628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:40,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:40,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:33:40,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336015961] [2021-11-05 17:33:40,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:40,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:33:40,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:40,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:33:40,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,510 INFO L87 Difference]: Start difference. First operand 594 states and 771 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:40,547 INFO L93 Difference]: Finished difference Result 1239 states and 1617 transitions. [2021-11-05 17:33:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:33:40,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-05 17:33:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:40,549 INFO L225 Difference]: With dead ends: 1239 [2021-11-05 17:33:40,549 INFO L226 Difference]: Without dead ends: 652 [2021-11-05 17:33:40,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:33:40,551 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 26 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.58ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.48ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:40,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 405 Invalid, 12 Unknown, 0 Unchecked, 0.58ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 15.48ms Time] [2021-11-05 17:33:40,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-05 17:33:40,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 644. [2021-11-05 17:33:40,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 1.3094867807153965) internal successors, (842), 643 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 842 transitions. [2021-11-05 17:33:40,569 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 842 transitions. Word has length 84 [2021-11-05 17:33:40,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:40,569 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 842 transitions. [2021-11-05 17:33:40,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,569 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 842 transitions. [2021-11-05 17:33:40,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-05 17:33:40,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:40,570 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:33:40,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 17:33:40,571 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:40,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:40,571 INFO L85 PathProgramCache]: Analyzing trace with hash -443790983, now seen corresponding path program 1 times [2021-11-05 17:33:40,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:40,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907902965] [2021-11-05 17:33:40,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:40,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:40,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:40,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907902965] [2021-11-05 17:33:40,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907902965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:40,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:40,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:33:40,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273527163] [2021-11-05 17:33:40,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:40,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:33:40,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:40,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:33:40,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:33:40,636 INFO L87 Difference]: Start difference. First operand 644 states and 842 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:40,708 INFO L93 Difference]: Finished difference Result 1968 states and 2608 transitions. [2021-11-05 17:33:40,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 17:33:40,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 92 [2021-11-05 17:33:40,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:40,713 INFO L225 Difference]: With dead ends: 1968 [2021-11-05 17:33:40,713 INFO L226 Difference]: Without dead ends: 1331 [2021-11-05 17:33:40,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.70ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:33:40,715 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 422 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.72ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.87ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:40,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 1111 Invalid, 18 Unknown, 0 Unchecked, 1.72ms Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 13.87ms Time] [2021-11-05 17:33:40,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2021-11-05 17:33:40,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 656. [2021-11-05 17:33:40,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.3038167938931298) internal successors, (854), 655 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 854 transitions. [2021-11-05 17:33:40,740 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 854 transitions. Word has length 92 [2021-11-05 17:33:40,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:40,740 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 854 transitions. [2021-11-05 17:33:40,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:40,741 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 854 transitions. [2021-11-05 17:33:40,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-05 17:33:40,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:40,742 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 17:33:40,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 17:33:40,742 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:40,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:40,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1017407904, now seen corresponding path program 1 times [2021-11-05 17:33:40,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:40,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546978965] [2021-11-05 17:33:40,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:40,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:40,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:40,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546978965] [2021-11-05 17:33:40,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546978965] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:33:40,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829993325] [2021-11-05 17:33:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:40,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:33:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:33:40,826 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 17:33:40,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 17:33:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:41,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 17:33:41,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:33:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:41,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 17:33:41,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829993325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:41,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 17:33:41,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-05 17:33:41,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23694984] [2021-11-05 17:33:41,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:41,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:33:41,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:41,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:33:41,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:33:41,350 INFO L87 Difference]: Start difference. First operand 656 states and 854 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:41,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:41,499 INFO L93 Difference]: Finished difference Result 2219 states and 2889 transitions. [2021-11-05 17:33:41,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 17:33:41,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 94 [2021-11-05 17:33:41,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:41,505 INFO L225 Difference]: With dead ends: 2219 [2021-11-05 17:33:41,505 INFO L226 Difference]: Without dead ends: 1570 [2021-11-05 17:33:41,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 39.19ms TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-05 17:33:41,508 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 349 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.30ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.04ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:41,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 1382 Invalid, 41 Unknown, 0 Unchecked, 3.30ms Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 55.04ms Time] [2021-11-05 17:33:41,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2021-11-05 17:33:41,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 684. [2021-11-05 17:33:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 683 states have (on average 1.2913616398243046) internal successors, (882), 683 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 882 transitions. [2021-11-05 17:33:41,543 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 882 transitions. Word has length 94 [2021-11-05 17:33:41,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:41,544 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 882 transitions. [2021-11-05 17:33:41,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 882 transitions. [2021-11-05 17:33:41,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-05 17:33:41,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:41,547 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 17:33:41,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 17:33:41,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-05 17:33:41,765 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:41,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:41,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1718472482, now seen corresponding path program 1 times [2021-11-05 17:33:41,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:41,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36185575] [2021-11-05 17:33:41,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:41,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:41,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:41,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36185575] [2021-11-05 17:33:41,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36185575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:41,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:41,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:33:41,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263406967] [2021-11-05 17:33:41,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:41,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:33:41,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:41,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:33:41,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:33:41,867 INFO L87 Difference]: Start difference. First operand 684 states and 882 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:41,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:41,974 INFO L93 Difference]: Finished difference Result 1890 states and 2432 transitions. [2021-11-05 17:33:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:33:41,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 94 [2021-11-05 17:33:41,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:41,978 INFO L225 Difference]: With dead ends: 1890 [2021-11-05 17:33:41,979 INFO L226 Difference]: Without dead ends: 1213 [2021-11-05 17:33:41,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.21ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:33:41,981 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 149 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.46ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.13ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:41,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 713 Invalid, 45 Unknown, 0 Unchecked, 1.46ms Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 39.13ms Time] [2021-11-05 17:33:41,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2021-11-05 17:33:42,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 692. [2021-11-05 17:33:42,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 691 states have (on average 1.2879884225759768) internal successors, (890), 691 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:42,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 890 transitions. [2021-11-05 17:33:42,020 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 890 transitions. Word has length 94 [2021-11-05 17:33:42,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:42,021 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 890 transitions. [2021-11-05 17:33:42,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:42,021 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 890 transitions. [2021-11-05 17:33:42,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-05 17:33:42,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:42,023 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 17:33:42,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 17:33:42,023 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:42,024 INFO L85 PathProgramCache]: Analyzing trace with hash 877065478, now seen corresponding path program 1 times [2021-11-05 17:33:42,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:42,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087321596] [2021-11-05 17:33:42,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:42,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:42,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:42,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087321596] [2021-11-05 17:33:42,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087321596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:42,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:42,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 17:33:42,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146317237] [2021-11-05 17:33:42,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:42,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 17:33:42,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:42,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 17:33:42,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 17:33:42,156 INFO L87 Difference]: Start difference. First operand 692 states and 890 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 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) [2021-11-05 17:33:42,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:42,470 INFO L93 Difference]: Finished difference Result 2492 states and 3214 transitions. [2021-11-05 17:33:42,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 17:33:42,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 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 96 [2021-11-05 17:33:42,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:42,476 INFO L225 Difference]: With dead ends: 2492 [2021-11-05 17:33:42,476 INFO L226 Difference]: Without dead ends: 1807 [2021-11-05 17:33:42,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 104.07ms TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-05 17:33:42,480 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 992 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.38ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.45ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:42,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 1991 Invalid, 151 Unknown, 0 Unchecked, 4.38ms Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 103.45ms Time] [2021-11-05 17:33:42,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2021-11-05 17:33:42,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 716. [2021-11-05 17:33:42,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2783216783216784) internal successors, (914), 715 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:42,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 914 transitions. [2021-11-05 17:33:42,532 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 914 transitions. Word has length 96 [2021-11-05 17:33:42,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:42,533 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 914 transitions. [2021-11-05 17:33:42,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 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) [2021-11-05 17:33:42,533 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 914 transitions. [2021-11-05 17:33:42,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-05 17:33:42,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:42,535 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 17:33:42,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 17:33:42,535 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:42,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:42,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1460316022, now seen corresponding path program 1 times [2021-11-05 17:33:42,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:42,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770857072] [2021-11-05 17:33:42,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:42,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:42,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:42,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770857072] [2021-11-05 17:33:42,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770857072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:42,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:42,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 17:33:42,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837882391] [2021-11-05 17:33:42,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:42,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 17:33:42,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:42,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 17:33:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:33:42,663 INFO L87 Difference]: Start difference. First operand 716 states and 914 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:42,977 INFO L93 Difference]: Finished difference Result 2982 states and 3848 transitions. [2021-11-05 17:33:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 17:33:42,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-05 17:33:42,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:42,984 INFO L225 Difference]: With dead ends: 2982 [2021-11-05 17:33:42,984 INFO L226 Difference]: Without dead ends: 2273 [2021-11-05 17:33:42,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 81.37ms TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-11-05 17:33:42,986 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 1158 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.05ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.85ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:42,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 1897 Invalid, 129 Unknown, 0 Unchecked, 4.05ms Time], IncrementalHoareTripleChecker [12 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 113.85ms Time] [2021-11-05 17:33:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-11-05 17:33:43,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 744. [2021-11-05 17:33:43,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 743 states have (on average 1.2732166890982504) internal successors, (946), 743 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 946 transitions. [2021-11-05 17:33:43,052 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 946 transitions. Word has length 98 [2021-11-05 17:33:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:43,052 INFO L470 AbstractCegarLoop]: Abstraction has 744 states and 946 transitions. [2021-11-05 17:33:43,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:43,052 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 946 transitions. [2021-11-05 17:33:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-05 17:33:43,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:43,053 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:33:43,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 17:33:43,054 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:43,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:43,054 INFO L85 PathProgramCache]: Analyzing trace with hash -222859706, now seen corresponding path program 1 times [2021-11-05 17:33:43,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:43,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854009566] [2021-11-05 17:33:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:43,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:43,131 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:43,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:43,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854009566] [2021-11-05 17:33:43,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854009566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:43,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:43,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:33:43,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887401754] [2021-11-05 17:33:43,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:43,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:33:43,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:43,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:33:43,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:33:43,134 INFO L87 Difference]: Start difference. First operand 744 states and 946 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:43,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:43,346 INFO L93 Difference]: Finished difference Result 2534 states and 3222 transitions. [2021-11-05 17:33:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 17:33:43,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 100 [2021-11-05 17:33:43,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:43,352 INFO L225 Difference]: With dead ends: 2534 [2021-11-05 17:33:43,353 INFO L226 Difference]: Without dead ends: 2163 [2021-11-05 17:33:43,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 28.98ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-05 17:33:43,354 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 756 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.43ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.40ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:43,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 1253 Invalid, 75 Unknown, 0 Unchecked, 3.43ms Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 46.40ms Time] [2021-11-05 17:33:43,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2163 states. [2021-11-05 17:33:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2163 to 756. [2021-11-05 17:33:43,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 755 states have (on average 1.2688741721854304) internal successors, (958), 755 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:43,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 958 transitions. [2021-11-05 17:33:43,428 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 958 transitions. Word has length 100 [2021-11-05 17:33:43,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:43,428 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 958 transitions. [2021-11-05 17:33:43,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:43,428 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 958 transitions. [2021-11-05 17:33:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-05 17:33:43,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:43,431 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 17:33:43,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 17:33:43,432 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:43,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:43,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1656738494, now seen corresponding path program 1 times [2021-11-05 17:33:43,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:43,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518108145] [2021-11-05 17:33:43,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:43,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:43,521 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:43,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:43,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518108145] [2021-11-05 17:33:43,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518108145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:43,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:43,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:33:43,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117768111] [2021-11-05 17:33:43,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:43,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:33:43,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:43,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:33:43,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:33:43,523 INFO L87 Difference]: Start difference. First operand 756 states and 958 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:43,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:43,738 INFO L93 Difference]: Finished difference Result 2700 states and 3434 transitions. [2021-11-05 17:33:43,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 17:33:43,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 102 [2021-11-05 17:33:43,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:43,744 INFO L225 Difference]: With dead ends: 2700 [2021-11-05 17:33:43,744 INFO L226 Difference]: Without dead ends: 1951 [2021-11-05 17:33:43,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.02ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:33:43,746 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 347 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.41ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.81ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:43,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1342 Invalid, 71 Unknown, 0 Unchecked, 2.41ms Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 45.81ms Time] [2021-11-05 17:33:43,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2021-11-05 17:33:43,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 768. [2021-11-05 17:33:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 767 states have (on average 1.2646675358539765) internal successors, (970), 767 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:43,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 970 transitions. [2021-11-05 17:33:43,813 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 970 transitions. Word has length 102 [2021-11-05 17:33:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:43,813 INFO L470 AbstractCegarLoop]: Abstraction has 768 states and 970 transitions. [2021-11-05 17:33:43,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:43,813 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 970 transitions. [2021-11-05 17:33:43,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-05 17:33:43,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:43,814 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-05 17:33:43,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 17:33:43,815 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:43,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:43,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1418219362, now seen corresponding path program 1 times [2021-11-05 17:33:43,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:43,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580644364] [2021-11-05 17:33:43,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:43,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:44,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:44,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580644364] [2021-11-05 17:33:44,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580644364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:44,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:44,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 17:33:44,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794267224] [2021-11-05 17:33:44,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:44,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 17:33:44,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:44,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 17:33:44,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-05 17:33:44,025 INFO L87 Difference]: Start difference. First operand 768 states and 970 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:44,664 INFO L93 Difference]: Finished difference Result 2610 states and 3322 transitions. [2021-11-05 17:33:44,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-05 17:33:44,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-05 17:33:44,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:44,671 INFO L225 Difference]: With dead ends: 2610 [2021-11-05 17:33:44,672 INFO L226 Difference]: Without dead ends: 2227 [2021-11-05 17:33:44,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 198.59ms TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2021-11-05 17:33:44,674 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 1254 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 151.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.66ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 183.25ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:44,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 3362 Invalid, 318 Unknown, 0 Unchecked, 7.66ms Time], IncrementalHoareTripleChecker [19 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 183.25ms Time] [2021-11-05 17:33:44,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2021-11-05 17:33:44,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 774. [2021-11-05 17:33:44,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 773 states have (on average 1.2626131953428201) internal successors, (976), 773 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 976 transitions. [2021-11-05 17:33:44,784 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 976 transitions. Word has length 104 [2021-11-05 17:33:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:44,785 INFO L470 AbstractCegarLoop]: Abstraction has 774 states and 976 transitions. [2021-11-05 17:33:44,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 976 transitions. [2021-11-05 17:33:44,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 17:33:44,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:44,786 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:33:44,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-05 17:33:44,787 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:44,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:44,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1114193399, now seen corresponding path program 1 times [2021-11-05 17:33:44,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:44,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464666933] [2021-11-05 17:33:44,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:44,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:44,897 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:44,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:44,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464666933] [2021-11-05 17:33:44,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464666933] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:33:44,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282942263] [2021-11-05 17:33:44,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:44,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:33:44,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:33:44,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 17:33:44,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 17:33:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:45,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 1512 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 17:33:45,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:33:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:45,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 17:33:45,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282942263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:45,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 17:33:45,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-05 17:33:45,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126722487] [2021-11-05 17:33:45,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:45,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:33:45,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:45,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:33:45,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:33:45,415 INFO L87 Difference]: Start difference. First operand 774 states and 976 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:45,660 INFO L93 Difference]: Finished difference Result 2309 states and 2914 transitions. [2021-11-05 17:33:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:33:45,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 125 [2021-11-05 17:33:45,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:45,667 INFO L225 Difference]: With dead ends: 2309 [2021-11-05 17:33:45,667 INFO L226 Difference]: Without dead ends: 2304 [2021-11-05 17:33:45,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.08ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:33:45,669 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 295 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.66ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.86ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:45,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 802 Invalid, 19 Unknown, 0 Unchecked, 1.66ms Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 21.86ms Time] [2021-11-05 17:33:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2021-11-05 17:33:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 2258. [2021-11-05 17:33:45,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2258 states, 2257 states have (on average 1.2662826761187418) internal successors, (2858), 2257 states have internal predecessors, (2858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 2858 transitions. [2021-11-05 17:33:45,871 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 2858 transitions. Word has length 125 [2021-11-05 17:33:45,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:45,871 INFO L470 AbstractCegarLoop]: Abstraction has 2258 states and 2858 transitions. [2021-11-05 17:33:45,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 2858 transitions. [2021-11-05 17:33:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 17:33:45,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:45,874 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:33:45,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 17:33:46,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-05 17:33:46,087 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:46,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:46,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1815257977, now seen corresponding path program 1 times [2021-11-05 17:33:46,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:46,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190167800] [2021-11-05 17:33:46,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:46,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:46,181 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:46,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:46,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190167800] [2021-11-05 17:33:46,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190167800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:46,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:46,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:33:46,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376322831] [2021-11-05 17:33:46,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:46,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:33:46,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:46,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:33:46,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:33:46,183 INFO L87 Difference]: Start difference. First operand 2258 states and 2858 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:46,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:46,599 INFO L93 Difference]: Finished difference Result 7337 states and 9347 transitions. [2021-11-05 17:33:46,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:33:46,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 125 [2021-11-05 17:33:46,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:46,614 INFO L225 Difference]: With dead ends: 7337 [2021-11-05 17:33:46,614 INFO L226 Difference]: Without dead ends: 5086 [2021-11-05 17:33:46,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.51ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:33:46,619 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 278 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.48ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.42ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:46,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 679 Invalid, 13 Unknown, 0 Unchecked, 1.48ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 13.42ms Time] [2021-11-05 17:33:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2021-11-05 17:33:46,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 2270. [2021-11-05 17:33:46,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2270 states, 2269 states have (on average 1.2648743940061702) internal successors, (2870), 2269 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:46,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2870 transitions. [2021-11-05 17:33:46,839 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2870 transitions. Word has length 125 [2021-11-05 17:33:46,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:46,839 INFO L470 AbstractCegarLoop]: Abstraction has 2270 states and 2870 transitions. [2021-11-05 17:33:46,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:46,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2870 transitions. [2021-11-05 17:33:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-05 17:33:46,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:46,842 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:33:46,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-05 17:33:46,843 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:46,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2113835711, now seen corresponding path program 1 times [2021-11-05 17:33:46,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:46,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192163006] [2021-11-05 17:33:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:46,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:33:46,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:46,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192163006] [2021-11-05 17:33:46,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192163006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:33:46,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:33:46,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:33:46,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498550486] [2021-11-05 17:33:46,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:33:46,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:33:46,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:33:46,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:33:46,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:33:46,946 INFO L87 Difference]: Start difference. First operand 2270 states and 2870 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:47,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:33:47,331 INFO L93 Difference]: Finished difference Result 5674 states and 7204 transitions. [2021-11-05 17:33:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 17:33:47,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-05 17:33:47,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:33:47,354 INFO L225 Difference]: With dead ends: 5674 [2021-11-05 17:33:47,354 INFO L226 Difference]: Without dead ends: 3387 [2021-11-05 17:33:47,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.56ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:33:47,359 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 129 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.75ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.62ms IncrementalHoareTripleChecker+Time [2021-11-05 17:33:47,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 723 Invalid, 39 Unknown, 0 Unchecked, 1.75ms Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 29.62ms Time] [2021-11-05 17:33:47,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2021-11-05 17:33:47,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 2270. [2021-11-05 17:33:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2270 states, 2269 states have (on average 1.259585720581754) internal successors, (2858), 2269 states have internal predecessors, (2858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:47,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2858 transitions. [2021-11-05 17:33:47,588 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2858 transitions. Word has length 129 [2021-11-05 17:33:47,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:33:47,588 INFO L470 AbstractCegarLoop]: Abstraction has 2270 states and 2858 transitions. [2021-11-05 17:33:47,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:33:47,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2858 transitions. [2021-11-05 17:33:47,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-05 17:33:47,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:33:47,591 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:33:47,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-05 17:33:47,592 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 17:33:47,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:33:47,592 INFO L85 PathProgramCache]: Analyzing trace with hash -199931299, now seen corresponding path program 1 times [2021-11-05 17:33:47,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:33:47,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921213794] [2021-11-05 17:33:47,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:47,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:33:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:33:48,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:33:48,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921213794] [2021-11-05 17:33:48,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921213794] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 17:33:48,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114390493] [2021-11-05 17:33:48,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:33:48,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 17:33:48,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:33:48,823 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 17:33:48,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 17:33:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:33:49,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 111 conjunts are in the unsatisfiable core [2021-11-05 17:33:49,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 17:33:49,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-05 17:33:49,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-05 17:33:49,463 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-05 17:33:49,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 34 [2021-11-05 17:33:49,471 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-05 17:33:49,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-05 17:33:49,925 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-05 17:33:49,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 43 [2021-11-05 17:33:50,750 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-05 17:33:50,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 59 [2021-11-05 17:33:51,422 INFO L354 Elim1Store]: treesize reduction 40, result has 29.8 percent of original size [2021-11-05 17:33:51,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 44 treesize of output 50 [2021-11-05 17:34:06,400 INFO L354 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2021-11-05 17:34:06,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 51 [2021-11-05 17:34:06,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2021-11-05 17:34:06,661 INFO L354 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2021-11-05 17:34:06,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 51 [2021-11-05 17:34:06,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2021-11-05 17:34:06,729 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-05 17:34:06,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 68 [2021-11-05 17:34:06,740 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-05 17:34:06,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 50 [2021-11-05 17:34:15,888 WARN L230 SmtUtils]: Spent 6.84s on a formula simplification. DAG size of input: 1000 DAG size of output: 390 [2021-11-05 17:34:15,889 INFO L354 Elim1Store]: treesize reduction 6824, result has 10.2 percent of original size [2021-11-05 17:34:15,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 77 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 81 new quantified variables, introduced 159 case distinctions, treesize of input 17871223 treesize of output 7458945 [2021-11-05 17:34:34,219 WARN L230 SmtUtils]: Spent 18.33s on a formula simplification that was a NOOP. DAG size: 2503 [2021-11-05 17:34:52,719 WARN L230 SmtUtils]: Spent 18.47s on a formula simplification that was a NOOP. DAG size: 2497 [2021-11-05 17:36:18,347 WARN L230 SmtUtils]: Spent 1.37m on a formula simplification. DAG size of input: 3231 DAG size of output: 1110 [2021-11-05 17:36:18,350 INFO L354 Elim1Store]: treesize reduction 32874, result has 15.5 percent of original size [2021-11-05 17:36:18,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 77 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 385 case distinctions, treesize of input 7459546 treesize of output 7463579 [2021-11-05 17:36:37,032 WARN L230 SmtUtils]: Spent 18.68s on a formula simplification that was a NOOP. DAG size: 3407 [2021-11-05 17:36:55,836 WARN L230 SmtUtils]: Spent 18.61s on a formula simplification that was a NOOP. DAG size: 3403 [2021-11-05 17:40:42,980 WARN L230 SmtUtils]: Spent 3.28m on a formula simplification. DAG size of input: 1809 DAG size of output: 1809 [2021-11-05 17:42:45,404 WARN L230 SmtUtils]: Spent 17.76s on a formula simplification that was a NOOP. DAG size: 1788 [2021-11-05 17:43:29,080 WARN L230 SmtUtils]: Spent 8.72s on a formula simplification that was a NOOP. DAG size: 1779 [2021-11-05 17:44:03,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:03,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 73 [2021-11-05 17:44:04,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:44:04,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 40 [2021-11-05 17:45:05,616 WARN L230 SmtUtils]: Spent 17.74s on a formula simplification that was a NOOP. DAG size: 1788 [2021-11-05 17:45:49,734 WARN L230 SmtUtils]: Spent 8.83s on a formula simplification that was a NOOP. DAG size: 1779 [2021-11-05 17:46:24,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 73 [2021-11-05 17:46:24,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 17:46:24,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 40 [2021-11-05 17:47:25,302 WARN L230 SmtUtils]: Spent 17.47s on a formula simplification that was a NOOP. DAG size: 1788 Killed by 15