./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 5b36d44f 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-5b36d44 [2021-11-07 14:04:55,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:04:55,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:04:55,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:04:55,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:04:55,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:04:55,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:04:55,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:04:55,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:04:55,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:04:55,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:04:55,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:04:55,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:04:55,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:04:55,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:04:55,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:04:55,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:04:55,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:04:55,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:04:55,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:04:55,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:04:55,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:04:55,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:04:55,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:04:55,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:04:55,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:04:55,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:04:55,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:04:55,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:04:55,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:04:55,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:04:55,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:04:55,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:04:55,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:04:55,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:04:55,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:04:55,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:04:55,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:04:55,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:04:55,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:04:55,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:04:55,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 14:04:55,279 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:04:55,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:04:55,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:04:55,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:04:55,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:04:55,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:04:55,281 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:04:55,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:04:55,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 14:04:55,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:04:55,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:04:55,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:04:55,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:04:55,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:04:55,283 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:04:55,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:04:55,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:04:55,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:04:55,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:04:55,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:04:55,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:04:55,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:04:55,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:04:55,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 14:04:55,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 14:04:55,284 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:04:55,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:04:55,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:04:55,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:04:55,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b [2021-11-07 14:04:55,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:04:55,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:04:55,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:04:55,516 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:04:55,517 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:04:55,518 INFO L432 ainManager$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 [2021-11-07 14:04:55,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d188702f/263653cfee5a4e3c97282100a6bd148a/FLAGef95565ad [2021-11-07 14:04:56,092 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:04:56,095 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 [2021-11-07 14:04:56,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d188702f/263653cfee5a4e3c97282100a6bd148a/FLAGef95565ad [2021-11-07 14:04:56,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d188702f/263653cfee5a4e3c97282100a6bd148a [2021-11-07 14:04:56,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:04:56,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:04:56,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:04:56,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:04:56,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:04:56,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:04:56" (1/1) ... [2021-11-07 14:04:56,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4d28e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:56, skipping insertion in model container [2021-11-07 14:04:56,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:04:56" (1/1) ... [2021-11-07 14:04:56,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:04:56,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:04:56,970 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] [2021-11-07 14:04:57,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:04:57,021 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:04:57,112 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] [2021-11-07 14:04:57,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:04:57,141 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:04:57,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57 WrapperNode [2021-11-07 14:04:57,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:04:57,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:04:57,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:04:57,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:04:57,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:04:57,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:04:57,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:04:57,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:04:57,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:04:57,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:04:57,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:04:57,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:04:57,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (1/1) ... [2021-11-07 14:04:57,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:04:57,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:04:57,359 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) [2021-11-07 14:04:57,360 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 [2021-11-07 14:04:57,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 14:04:57,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 14:04:57,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:04:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:04:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:04:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:04:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:04:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:04:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 14:04:57,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:04:57,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:04:58,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:04:58,248 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-11-07 14:04:58,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:04:58 BoogieIcfgContainer [2021-11-07 14:04:58,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:04:58,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:04:58,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:04:58,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:04:58,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:04:56" (1/3) ... [2021-11-07 14:04:58,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a16caae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:04:58, skipping insertion in model container [2021-11-07 14:04:58,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:57" (2/3) ... [2021-11-07 14:04:58,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a16caae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:04:58, skipping insertion in model container [2021-11-07 14:04:58,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:04:58" (3/3) ... [2021-11-07 14:04:58,255 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 [2021-11-07 14:04:58,258 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:04:58,259 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-07 14:04:58,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:04:58,294 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 [2021-11-07 14:04:58,294 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 14:04:58,315 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) [2021-11-07 14:04:58,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 14:04:58,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:58,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:04:58,323 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)] === [2021-11-07 14:04:58,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:58,330 INFO L85 PathProgramCache]: Analyzing trace with hash -218290634, now seen corresponding path program 1 times [2021-11-07 14:04:58,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:58,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131336559] [2021-11-07 14:04:58,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:58,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:58,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:58,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131336559] [2021-11-07 14:04:58,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131336559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:58,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:58,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:04:58,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946102387] [2021-11-07 14:04:58,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:58,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:04:58,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:58,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:04:58,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:04:58,609 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) [2021-11-07 14:04:58,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:58,637 INFO L93 Difference]: Finished difference Result 354 states and 481 transitions. [2021-11-07 14:04:58,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:04:58,639 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 [2021-11-07 14:04:58,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:58,647 INFO L225 Difference]: With dead ends: 354 [2021-11-07 14:04:58,648 INFO L226 Difference]: Without dead ends: 171 [2021-11-07 14:04:58,651 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 [2021-11-07 14:04:58,655 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, 1.87ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:58,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 1.87ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:04:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-07 14:04:58,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-11-07 14:04:58,707 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) [2021-11-07 14:04:58,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 219 transitions. [2021-11-07 14:04:58,711 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 219 transitions. Word has length 17 [2021-11-07 14:04:58,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:58,712 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 219 transitions. [2021-11-07 14:04:58,712 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) [2021-11-07 14:04:58,712 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 219 transitions. [2021-11-07 14:04:58,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 14:04:58,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:58,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:04:58,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 14:04:58,714 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)] === [2021-11-07 14:04:58,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:58,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1229407884, now seen corresponding path program 1 times [2021-11-07 14:04:58,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:58,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432036243] [2021-11-07 14:04:58,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:58,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:58,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:58,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432036243] [2021-11-07 14:04:58,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432036243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:58,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:58,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:04:58,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809872484] [2021-11-07 14:04:58,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:58,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:58,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:58,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:58,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:58,777 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) [2021-11-07 14:04:58,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:58,846 INFO L93 Difference]: Finished difference Result 473 states and 616 transitions. [2021-11-07 14:04:58,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:58,846 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 [2021-11-07 14:04:58,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:58,848 INFO L225 Difference]: With dead ends: 473 [2021-11-07 14:04:58,851 INFO L226 Difference]: Without dead ends: 309 [2021-11-07 14:04:58,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:58,853 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 189 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.94ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.61ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:58,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 411 Invalid, 15 Unknown, 0 Unchecked, 2.94ms Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 47.61ms Time] [2021-11-07 14:04:58,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-07 14:04:58,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-11-07 14:04:58,879 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) [2021-11-07 14:04:58,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 401 transitions. [2021-11-07 14:04:58,884 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 401 transitions. Word has length 17 [2021-11-07 14:04:58,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:58,884 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 401 transitions. [2021-11-07 14:04:58,885 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) [2021-11-07 14:04:58,885 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 401 transitions. [2021-11-07 14:04:58,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 14:04:58,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:58,886 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] [2021-11-07 14:04:58,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 14:04:58,887 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)] === [2021-11-07 14:04:58,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:58,888 INFO L85 PathProgramCache]: Analyzing trace with hash 994747557, now seen corresponding path program 1 times [2021-11-07 14:04:58,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:58,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525779662] [2021-11-07 14:04:58,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:58,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:58,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:58,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:58,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525779662] [2021-11-07 14:04:58,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525779662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:58,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:58,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:04:58,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365198835] [2021-11-07 14:04:58,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:58,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:04:58,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:58,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:04:58,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:04:58,982 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) [2021-11-07 14:04:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:59,061 INFO L93 Difference]: Finished difference Result 778 states and 1008 transitions. [2021-11-07 14:04:59,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:04:59,063 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 [2021-11-07 14:04:59,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:59,065 INFO L225 Difference]: With dead ends: 778 [2021-11-07 14:04:59,065 INFO L226 Difference]: Without dead ends: 476 [2021-11-07 14:04:59,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.03ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:04:59,067 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 627 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.94ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.72ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:59,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 869 Invalid, 25 Unknown, 0 Unchecked, 4.94ms Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 39.72ms Time] [2021-11-07 14:04:59,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-11-07 14:04:59,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 312. [2021-11-07 14:04:59,095 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) [2021-11-07 14:04:59,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 403 transitions. [2021-11-07 14:04:59,097 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 403 transitions. Word has length 29 [2021-11-07 14:04:59,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:59,097 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 403 transitions. [2021-11-07 14:04:59,097 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) [2021-11-07 14:04:59,097 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 403 transitions. [2021-11-07 14:04:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 14:04:59,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:59,098 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] [2021-11-07 14:04:59,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 14:04:59,099 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)] === [2021-11-07 14:04:59,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:59,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1525212377, now seen corresponding path program 1 times [2021-11-07 14:04:59,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:59,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021550735] [2021-11-07 14:04:59,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:59,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:59,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:59,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:59,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021550735] [2021-11-07 14:04:59,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021550735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:59,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:59,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:04:59,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908690822] [2021-11-07 14:04:59,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:59,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:59,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:59,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:59,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,177 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) [2021-11-07 14:04:59,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:59,227 INFO L93 Difference]: Finished difference Result 911 states and 1186 transitions. [2021-11-07 14:04:59,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:59,228 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 [2021-11-07 14:04:59,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:59,231 INFO L225 Difference]: With dead ends: 911 [2021-11-07 14:04:59,231 INFO L226 Difference]: Without dead ends: 606 [2021-11-07 14:04:59,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,236 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 187 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.45ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.14ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:59,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 472 Invalid, 13 Unknown, 0 Unchecked, 1.45ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 30.14ms Time] [2021-11-07 14:04:59,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-07 14:04:59,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2021-11-07 14:04:59,266 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) [2021-11-07 14:04:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 785 transitions. [2021-11-07 14:04:59,268 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 785 transitions. Word has length 29 [2021-11-07 14:04:59,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:59,269 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 785 transitions. [2021-11-07 14:04:59,269 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) [2021-11-07 14:04:59,270 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 785 transitions. [2021-11-07 14:04:59,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 14:04:59,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:59,272 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] [2021-11-07 14:04:59,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 14:04:59,272 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)] === [2021-11-07 14:04:59,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:59,274 INFO L85 PathProgramCache]: Analyzing trace with hash -36936870, now seen corresponding path program 1 times [2021-11-07 14:04:59,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:59,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078191625] [2021-11-07 14:04:59,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:59,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:59,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:59,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:59,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078191625] [2021-11-07 14:04:59,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078191625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:59,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:59,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:04:59,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157877039] [2021-11-07 14:04:59,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:59,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:59,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:59,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:59,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,346 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) [2021-11-07 14:04:59,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:59,359 INFO L93 Difference]: Finished difference Result 606 states and 785 transitions. [2021-11-07 14:04:59,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:59,359 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 [2021-11-07 14:04:59,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:59,361 INFO L225 Difference]: With dead ends: 606 [2021-11-07 14:04:59,361 INFO L226 Difference]: Without dead ends: 604 [2021-11-07 14:04:59,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,362 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.73ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:59,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 216 Invalid, 1 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.73ms Time] [2021-11-07 14:04:59,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-11-07 14:04:59,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2021-11-07 14:04:59,378 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) [2021-11-07 14:04:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 783 transitions. [2021-11-07 14:04:59,380 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 783 transitions. Word has length 30 [2021-11-07 14:04:59,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:59,380 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 783 transitions. [2021-11-07 14:04:59,391 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) [2021-11-07 14:04:59,391 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 783 transitions. [2021-11-07 14:04:59,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 14:04:59,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:59,392 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] [2021-11-07 14:04:59,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 14:04:59,392 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)] === [2021-11-07 14:04:59,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:59,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1145036399, now seen corresponding path program 1 times [2021-11-07 14:04:59,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:59,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135472334] [2021-11-07 14:04:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:59,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:59,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:59,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135472334] [2021-11-07 14:04:59,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135472334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:59,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:59,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:04:59,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089724801] [2021-11-07 14:04:59,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:59,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:59,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:59,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:59,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,462 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) [2021-11-07 14:04:59,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:59,478 INFO L93 Difference]: Finished difference Result 604 states and 783 transitions. [2021-11-07 14:04:59,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:59,478 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 [2021-11-07 14:04:59,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:59,481 INFO L225 Difference]: With dead ends: 604 [2021-11-07 14:04:59,481 INFO L226 Difference]: Without dead ends: 602 [2021-11-07 14:04:59,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,482 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 186 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.77ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:59,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.77ms Time] [2021-11-07 14:04:59,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-11-07 14:04:59,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2021-11-07 14:04:59,500 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) [2021-11-07 14:04:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 781 transitions. [2021-11-07 14:04:59,501 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 781 transitions. Word has length 31 [2021-11-07 14:04:59,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:59,502 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 781 transitions. [2021-11-07 14:04:59,502 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) [2021-11-07 14:04:59,503 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 781 transitions. [2021-11-07 14:04:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 14:04:59,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:59,506 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] [2021-11-07 14:04:59,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 14:04:59,506 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)] === [2021-11-07 14:04:59,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:59,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1136383420, now seen corresponding path program 1 times [2021-11-07 14:04:59,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:59,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743740436] [2021-11-07 14:04:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:59,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:59,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:59,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:59,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743740436] [2021-11-07 14:04:59,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743740436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:59,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:59,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:04:59,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016740453] [2021-11-07 14:04:59,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:59,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:59,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:59,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:59,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,571 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) [2021-11-07 14:04:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:59,584 INFO L93 Difference]: Finished difference Result 602 states and 781 transitions. [2021-11-07 14:04:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:59,585 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 [2021-11-07 14:04:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:59,588 INFO L225 Difference]: With dead ends: 602 [2021-11-07 14:04:59,588 INFO L226 Difference]: Without dead ends: 594 [2021-11-07 14:04:59,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,589 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, 0.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:59,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.77ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:04:59,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-11-07 14:04:59,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2021-11-07 14:04:59,606 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) [2021-11-07 14:04:59,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 771 transitions. [2021-11-07 14:04:59,607 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 771 transitions. Word has length 32 [2021-11-07 14:04:59,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:59,607 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 771 transitions. [2021-11-07 14:04:59,607 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) [2021-11-07 14:04:59,608 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 771 transitions. [2021-11-07 14:04:59,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 14:04:59,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:59,610 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] [2021-11-07 14:04:59,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 14:04:59,611 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)] === [2021-11-07 14:04:59,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:59,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1227674702, now seen corresponding path program 1 times [2021-11-07 14:04:59,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:59,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489285786] [2021-11-07 14:04:59,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:59,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:04:59,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:59,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489285786] [2021-11-07 14:04:59,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489285786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:59,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:59,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:04:59,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730313584] [2021-11-07 14:04:59,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:59,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:04:59,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:59,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:04:59,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,692 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) [2021-11-07 14:04:59,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:59,744 INFO L93 Difference]: Finished difference Result 1239 states and 1617 transitions. [2021-11-07 14:04:59,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:04:59,745 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 [2021-11-07 14:04:59,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:59,747 INFO L225 Difference]: With dead ends: 1239 [2021-11-07 14:04:59,747 INFO L226 Difference]: Without dead ends: 652 [2021-11-07 14:04:59,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:04:59,748 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 26 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.95ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.90ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:59,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 405 Invalid, 12 Unknown, 0 Unchecked, 0.95ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 22.90ms Time] [2021-11-07 14:04:59,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-07 14:04:59,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 644. [2021-11-07 14:04:59,770 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) [2021-11-07 14:04:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 842 transitions. [2021-11-07 14:04:59,772 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 842 transitions. Word has length 84 [2021-11-07 14:04:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:59,774 INFO L470 AbstractCegarLoop]: Abstraction has 644 states and 842 transitions. [2021-11-07 14:04:59,775 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) [2021-11-07 14:04:59,775 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 842 transitions. [2021-11-07 14:04:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 14:04:59,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:59,776 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] [2021-11-07 14:04:59,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 14:04:59,777 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)] === [2021-11-07 14:04:59,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash -443790983, now seen corresponding path program 1 times [2021-11-07 14:04:59,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:59,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013083624] [2021-11-07 14:04:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:59,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:04:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:04:59,861 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:04:59,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:04:59,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013083624] [2021-11-07 14:04:59,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013083624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:04:59,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:04:59,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:04:59,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383513742] [2021-11-07 14:04:59,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:04:59,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:04:59,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:04:59,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:04:59,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:04:59,863 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) [2021-11-07 14:04:59,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:04:59,928 INFO L93 Difference]: Finished difference Result 1968 states and 2608 transitions. [2021-11-07 14:04:59,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 14:04:59,929 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 [2021-11-07 14:04:59,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:04:59,934 INFO L225 Difference]: With dead ends: 1968 [2021-11-07 14:04:59,936 INFO L226 Difference]: Without dead ends: 1331 [2021-11-07 14:04:59,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.33ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:04:59,939 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 422 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.68ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.40ms IncrementalHoareTripleChecker+Time [2021-11-07 14:04:59,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 1111 Invalid, 18 Unknown, 0 Unchecked, 1.68ms Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 12.40ms Time] [2021-11-07 14:04:59,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2021-11-07 14:04:59,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 656. [2021-11-07 14:04:59,968 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) [2021-11-07 14:04:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 854 transitions. [2021-11-07 14:04:59,970 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 854 transitions. Word has length 92 [2021-11-07 14:04:59,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:04:59,970 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 854 transitions. [2021-11-07 14:04:59,970 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) [2021-11-07 14:04:59,971 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 854 transitions. [2021-11-07 14:04:59,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 14:04:59,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:04:59,972 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] [2021-11-07 14:04:59,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 14:04:59,972 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)] === [2021-11-07 14:04:59,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:04:59,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1017407904, now seen corresponding path program 1 times [2021-11-07 14:04:59,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:04:59,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47752801] [2021-11-07 14:04:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:04:59,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:00,084 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:00,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:00,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47752801] [2021-11-07 14:05:00,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47752801] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 14:05:00,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444834422] [2021-11-07 14:05:00,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:00,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 14:05:00,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:05:00,087 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) [2021-11-07 14:05:00,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 14:05:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:00,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 14:05:00,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:05:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:00,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 14:05:00,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444834422] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:00,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 14:05:00,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-07 14:05:00,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697433162] [2021-11-07 14:05:00,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:00,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:05:00,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:05:00,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:05:00,557 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) [2021-11-07 14:05:00,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:00,700 INFO L93 Difference]: Finished difference Result 2219 states and 2889 transitions. [2021-11-07 14:05:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 14:05:00,701 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 [2021-11-07 14:05:00,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:00,706 INFO L225 Difference]: With dead ends: 2219 [2021-11-07 14:05:00,706 INFO L226 Difference]: Without dead ends: 1570 [2021-11-07 14:05:00,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 47.20ms TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-07 14:05:00,709 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 349 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.46ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.59ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:00,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 1382 Invalid, 41 Unknown, 0 Unchecked, 2.46ms Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 43.59ms Time] [2021-11-07 14:05:00,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2021-11-07 14:05:00,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 684. [2021-11-07 14:05:00,739 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) [2021-11-07 14:05:00,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 882 transitions. [2021-11-07 14:05:00,742 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 882 transitions. Word has length 94 [2021-11-07 14:05:00,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:00,743 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 882 transitions. [2021-11-07 14:05:00,743 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) [2021-11-07 14:05:00,743 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 882 transitions. [2021-11-07 14:05:00,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 14:05:00,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:00,748 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] [2021-11-07 14:05:00,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 14:05:00,959 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 [2021-11-07 14:05:00,960 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)] === [2021-11-07 14:05:00,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1718472482, now seen corresponding path program 1 times [2021-11-07 14:05:00,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:00,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925687176] [2021-11-07 14:05:00,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:00,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:01,071 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:01,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:01,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925687176] [2021-11-07 14:05:01,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925687176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:01,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:05:01,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:05:01,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120622470] [2021-11-07 14:05:01,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:01,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:05:01,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:01,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:05:01,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:05:01,076 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) [2021-11-07 14:05:01,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:01,170 INFO L93 Difference]: Finished difference Result 1890 states and 2432 transitions. [2021-11-07 14:05:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:05:01,171 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 [2021-11-07 14:05:01,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:01,175 INFO L225 Difference]: With dead ends: 1890 [2021-11-07 14:05:01,175 INFO L226 Difference]: Without dead ends: 1213 [2021-11-07 14:05:01,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.93ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:05:01,178 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 149 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.62ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.54ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:01,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 713 Invalid, 45 Unknown, 0 Unchecked, 1.62ms Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 38.54ms Time] [2021-11-07 14:05:01,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2021-11-07 14:05:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 692. [2021-11-07 14:05:01,211 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) [2021-11-07 14:05:01,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 890 transitions. [2021-11-07 14:05:01,213 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 890 transitions. Word has length 94 [2021-11-07 14:05:01,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:01,214 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 890 transitions. [2021-11-07 14:05:01,214 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) [2021-11-07 14:05:01,214 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 890 transitions. [2021-11-07 14:05:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 14:05:01,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:01,215 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] [2021-11-07 14:05:01,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 14:05:01,216 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)] === [2021-11-07 14:05:01,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:01,216 INFO L85 PathProgramCache]: Analyzing trace with hash 877065478, now seen corresponding path program 1 times [2021-11-07 14:05:01,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:01,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165149995] [2021-11-07 14:05:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:01,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:01,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:01,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165149995] [2021-11-07 14:05:01,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165149995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:01,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:05:01,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 14:05:01,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339995268] [2021-11-07 14:05:01,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:01,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 14:05:01,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:01,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 14:05:01,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 14:05:01,399 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) [2021-11-07 14:05:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:01,727 INFO L93 Difference]: Finished difference Result 2492 states and 3214 transitions. [2021-11-07 14:05:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 14:05:01,728 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 [2021-11-07 14:05:01,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:01,733 INFO L225 Difference]: With dead ends: 2492 [2021-11-07 14:05:01,733 INFO L226 Difference]: Without dead ends: 1807 [2021-11-07 14:05:01,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 134.52ms TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-07 14:05:01,736 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 992 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.93ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.93ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:01,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 1991 Invalid, 151 Unknown, 0 Unchecked, 4.93ms Time], IncrementalHoareTripleChecker [8 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 110.93ms Time] [2021-11-07 14:05:01,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2021-11-07 14:05:01,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 716. [2021-11-07 14:05:01,782 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) [2021-11-07 14:05:01,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 914 transitions. [2021-11-07 14:05:01,784 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 914 transitions. Word has length 96 [2021-11-07 14:05:01,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:01,784 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 914 transitions. [2021-11-07 14:05:01,785 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) [2021-11-07 14:05:01,785 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 914 transitions. [2021-11-07 14:05:01,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 14:05:01,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:01,786 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] [2021-11-07 14:05:01,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 14:05:01,787 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)] === [2021-11-07 14:05:01,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:01,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1460316022, now seen corresponding path program 1 times [2021-11-07 14:05:01,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:01,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888992195] [2021-11-07 14:05:01,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:01,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:01,921 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:01,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:01,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888992195] [2021-11-07 14:05:01,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888992195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:01,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:05:01,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 14:05:01,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786671299] [2021-11-07 14:05:01,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:01,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 14:05:01,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:01,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 14:05:01,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:05:01,924 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) [2021-11-07 14:05:02,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:02,243 INFO L93 Difference]: Finished difference Result 2982 states and 3848 transitions. [2021-11-07 14:05:02,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 14:05:02,244 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 [2021-11-07 14:05:02,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:02,250 INFO L225 Difference]: With dead ends: 2982 [2021-11-07 14:05:02,251 INFO L226 Difference]: Without dead ends: 2273 [2021-11-07 14:05:02,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 93.56ms TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-11-07 14:05:02,253 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 1158 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.61ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.35ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:02,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 1897 Invalid, 129 Unknown, 0 Unchecked, 5.61ms Time], IncrementalHoareTripleChecker [12 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 106.35ms Time] [2021-11-07 14:05:02,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2021-11-07 14:05:02,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 744. [2021-11-07 14:05:02,320 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) [2021-11-07 14:05:02,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 946 transitions. [2021-11-07 14:05:02,323 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 946 transitions. Word has length 98 [2021-11-07 14:05:02,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:02,323 INFO L470 AbstractCegarLoop]: Abstraction has 744 states and 946 transitions. [2021-11-07 14:05:02,323 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) [2021-11-07 14:05:02,323 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 946 transitions. [2021-11-07 14:05:02,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-07 14:05:02,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:02,325 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] [2021-11-07 14:05:02,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 14:05:02,325 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)] === [2021-11-07 14:05:02,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:02,326 INFO L85 PathProgramCache]: Analyzing trace with hash -222859706, now seen corresponding path program 1 times [2021-11-07 14:05:02,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:02,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230833390] [2021-11-07 14:05:02,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:02,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:02,407 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:02,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:02,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230833390] [2021-11-07 14:05:02,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230833390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:02,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:05:02,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:05:02,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064032717] [2021-11-07 14:05:02,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:02,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:05:02,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:02,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:05:02,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:05:02,410 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) [2021-11-07 14:05:02,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:02,600 INFO L93 Difference]: Finished difference Result 2534 states and 3222 transitions. [2021-11-07 14:05:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 14:05:02,601 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 [2021-11-07 14:05:02,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:02,608 INFO L225 Difference]: With dead ends: 2534 [2021-11-07 14:05:02,609 INFO L226 Difference]: Without dead ends: 2163 [2021-11-07 14:05:02,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.95ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 14:05:02,611 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 756 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.96ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.56ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:02,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 1253 Invalid, 75 Unknown, 0 Unchecked, 2.96ms Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 47.56ms Time] [2021-11-07 14:05:02,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2163 states. [2021-11-07 14:05:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2163 to 756. [2021-11-07 14:05:02,682 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) [2021-11-07 14:05:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 958 transitions. [2021-11-07 14:05:02,683 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 958 transitions. Word has length 100 [2021-11-07 14:05:02,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:02,683 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 958 transitions. [2021-11-07 14:05:02,684 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) [2021-11-07 14:05:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 958 transitions. [2021-11-07 14:05:02,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-07 14:05:02,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:02,685 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] [2021-11-07 14:05:02,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 14:05:02,686 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)] === [2021-11-07 14:05:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:02,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1656738494, now seen corresponding path program 1 times [2021-11-07 14:05:02,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:02,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982139168] [2021-11-07 14:05:02,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:02,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:02,765 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:02,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:02,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982139168] [2021-11-07 14:05:02,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982139168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:02,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:05:02,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:05:02,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427578461] [2021-11-07 14:05:02,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:02,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:05:02,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:02,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:05:02,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:05:02,767 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) [2021-11-07 14:05:03,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:03,006 INFO L93 Difference]: Finished difference Result 2700 states and 3434 transitions. [2021-11-07 14:05:03,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 14:05:03,006 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 [2021-11-07 14:05:03,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:03,012 INFO L225 Difference]: With dead ends: 2700 [2021-11-07 14:05:03,012 INFO L226 Difference]: Without dead ends: 1951 [2021-11-07 14:05:03,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.58ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:05:03,014 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 347 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.97ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.68ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:03,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1342 Invalid, 71 Unknown, 0 Unchecked, 2.97ms Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 48.68ms Time] [2021-11-07 14:05:03,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2021-11-07 14:05:03,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 768. [2021-11-07 14:05:03,071 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) [2021-11-07 14:05:03,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 970 transitions. [2021-11-07 14:05:03,073 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 970 transitions. Word has length 102 [2021-11-07 14:05:03,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:03,073 INFO L470 AbstractCegarLoop]: Abstraction has 768 states and 970 transitions. [2021-11-07 14:05:03,073 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) [2021-11-07 14:05:03,074 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 970 transitions. [2021-11-07 14:05:03,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 14:05:03,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:03,075 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] [2021-11-07 14:05:03,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 14:05:03,075 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)] === [2021-11-07 14:05:03,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:03,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1418219362, now seen corresponding path program 1 times [2021-11-07 14:05:03,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:03,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684478124] [2021-11-07 14:05:03,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:03,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:03,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:03,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:03,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684478124] [2021-11-07 14:05:03,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684478124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:03,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:05:03,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 14:05:03,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507323194] [2021-11-07 14:05:03,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:03,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 14:05:03,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:03,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 14:05:03,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-07 14:05:03,297 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) [2021-11-07 14:05:03,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:03,911 INFO L93 Difference]: Finished difference Result 2610 states and 3322 transitions. [2021-11-07 14:05:03,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 14:05:03,912 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 [2021-11-07 14:05:03,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:03,918 INFO L225 Difference]: With dead ends: 2610 [2021-11-07 14:05:03,918 INFO L226 Difference]: Without dead ends: 2227 [2021-11-07 14:05:03,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 202.08ms TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2021-11-07 14:05:03,921 INFO L933 BasicCegarLoop]: 740 mSDtfsCounter, 1254 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 150.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.60ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181.46ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:03,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 3362 Invalid, 318 Unknown, 0 Unchecked, 7.60ms Time], IncrementalHoareTripleChecker [19 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 181.46ms Time] [2021-11-07 14:05:03,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2021-11-07 14:05:04,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 774. [2021-11-07 14:05:04,014 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) [2021-11-07 14:05:04,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 976 transitions. [2021-11-07 14:05:04,016 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 976 transitions. Word has length 104 [2021-11-07 14:05:04,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:04,016 INFO L470 AbstractCegarLoop]: Abstraction has 774 states and 976 transitions. [2021-11-07 14:05:04,016 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) [2021-11-07 14:05:04,016 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 976 transitions. [2021-11-07 14:05:04,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-07 14:05:04,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:04,018 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] [2021-11-07 14:05:04,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 14:05:04,018 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)] === [2021-11-07 14:05:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:04,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1114193399, now seen corresponding path program 1 times [2021-11-07 14:05:04,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:04,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873319493] [2021-11-07 14:05:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:04,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:04,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:04,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:04,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873319493] [2021-11-07 14:05:04,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873319493] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 14:05:04,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718495742] [2021-11-07 14:05:04,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:04,103 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 14:05:04,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:05:04,104 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) [2021-11-07 14:05:04,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 14:05:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:04,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1512 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 14:05:04,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:05:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:04,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 14:05:04,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718495742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:04,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 14:05:04,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-07 14:05:04,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792239539] [2021-11-07 14:05:04,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:04,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:05:04,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:04,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:05:04,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:05:04,620 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) [2021-11-07 14:05:04,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:04,916 INFO L93 Difference]: Finished difference Result 2309 states and 2914 transitions. [2021-11-07 14:05:04,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 14:05:04,917 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 [2021-11-07 14:05:04,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:04,924 INFO L225 Difference]: With dead ends: 2309 [2021-11-07 14:05:04,924 INFO L226 Difference]: Without dead ends: 2304 [2021-11-07 14:05:04,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.57ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:05:04,927 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 295 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.66ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.68ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:04,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 802 Invalid, 19 Unknown, 0 Unchecked, 2.66ms Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 21.68ms Time] [2021-11-07 14:05:04,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2021-11-07 14:05:05,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 2258. [2021-11-07 14:05:05,170 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) [2021-11-07 14:05:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 2858 transitions. [2021-11-07 14:05:05,176 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 2858 transitions. Word has length 125 [2021-11-07 14:05:05,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:05,177 INFO L470 AbstractCegarLoop]: Abstraction has 2258 states and 2858 transitions. [2021-11-07 14:05:05,177 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) [2021-11-07 14:05:05,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 2858 transitions. [2021-11-07 14:05:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-07 14:05:05,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:05,180 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] [2021-11-07 14:05:05,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 14:05:05,391 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 [2021-11-07 14:05:05,391 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)] === [2021-11-07 14:05:05,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:05,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1815257977, now seen corresponding path program 1 times [2021-11-07 14:05:05,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:05,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423284436] [2021-11-07 14:05:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:05,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:05,479 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:05,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:05,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423284436] [2021-11-07 14:05:05,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423284436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:05,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:05:05,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:05:05,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304951024] [2021-11-07 14:05:05,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:05,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:05:05,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:05,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:05:05,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:05:05,481 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) [2021-11-07 14:05:05,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:05,979 INFO L93 Difference]: Finished difference Result 7337 states and 9347 transitions. [2021-11-07 14:05:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:05:05,980 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 [2021-11-07 14:05:05,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:05,994 INFO L225 Difference]: With dead ends: 7337 [2021-11-07 14:05:05,994 INFO L226 Difference]: Without dead ends: 5086 [2021-11-07 14:05:05,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:05:06,000 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 278 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.64ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.38ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:06,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 679 Invalid, 13 Unknown, 0 Unchecked, 1.64ms Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 13.38ms Time] [2021-11-07 14:05:06,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2021-11-07 14:05:06,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 2270. [2021-11-07 14:05:06,271 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) [2021-11-07 14:05:06,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2870 transitions. [2021-11-07 14:05:06,276 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2870 transitions. Word has length 125 [2021-11-07 14:05:06,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:06,277 INFO L470 AbstractCegarLoop]: Abstraction has 2270 states and 2870 transitions. [2021-11-07 14:05:06,277 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) [2021-11-07 14:05:06,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2870 transitions. [2021-11-07 14:05:06,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-07 14:05:06,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:06,280 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] [2021-11-07 14:05:06,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 14:05:06,281 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)] === [2021-11-07 14:05:06,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:06,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2113835711, now seen corresponding path program 1 times [2021-11-07 14:05:06,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:06,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818775605] [2021-11-07 14:05:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:06,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:06,369 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:05:06,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:06,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818775605] [2021-11-07 14:05:06,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818775605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:05:06,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:05:06,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:05:06,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121859190] [2021-11-07 14:05:06,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:05:06,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:05:06,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:05:06,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:05:06,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:05:06,372 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) [2021-11-07 14:05:06,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:05:06,719 INFO L93 Difference]: Finished difference Result 5674 states and 7204 transitions. [2021-11-07 14:05:06,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 14:05:06,720 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 [2021-11-07 14:05:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:05:06,729 INFO L225 Difference]: With dead ends: 5674 [2021-11-07 14:05:06,729 INFO L226 Difference]: Without dead ends: 3387 [2021-11-07 14:05:06,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.82ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:05:06,734 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 129 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.50ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.58ms IncrementalHoareTripleChecker+Time [2021-11-07 14:05:06,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 723 Invalid, 39 Unknown, 0 Unchecked, 1.50ms Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 23.58ms Time] [2021-11-07 14:05:06,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2021-11-07 14:05:06,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 2270. [2021-11-07 14:05:06,943 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) [2021-11-07 14:05:06,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2858 transitions. [2021-11-07 14:05:06,947 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2858 transitions. Word has length 129 [2021-11-07 14:05:06,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:05:06,948 INFO L470 AbstractCegarLoop]: Abstraction has 2270 states and 2858 transitions. [2021-11-07 14:05:06,948 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) [2021-11-07 14:05:06,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2858 transitions. [2021-11-07 14:05:06,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-07 14:05:06,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:05:06,950 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] [2021-11-07 14:05:06,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 14:05:06,951 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)] === [2021-11-07 14:05:06,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:05:06,951 INFO L85 PathProgramCache]: Analyzing trace with hash -199931299, now seen corresponding path program 1 times [2021-11-07 14:05:06,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:05:06,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221923002] [2021-11-07 14:05:06,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:06,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:05:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:05:08,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:05:08,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221923002] [2021-11-07 14:05:08,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221923002] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 14:05:08,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657063781] [2021-11-07 14:05:08,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:05:08,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 14:05:08,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:05:08,037 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) [2021-11-07 14:05:08,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 14:05:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:05:08,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 111 conjunts are in the unsatisfiable core [2021-11-07 14:05:08,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:05:08,446 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 [2021-11-07 14:05:08,450 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 [2021-11-07 14:05:08,703 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-07 14:05:08,703 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 [2021-11-07 14:05:08,712 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-07 14:05:08,712 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 [2021-11-07 14:05:09,084 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-07 14:05:09,084 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 [2021-11-07 14:05:09,962 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-07 14:05:09,963 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 [2021-11-07 14:05:10,611 INFO L354 Elim1Store]: treesize reduction 40, result has 29.8 percent of original size [2021-11-07 14:05:10,612 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 [2021-11-07 14:05:25,572 INFO L354 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2021-11-07 14:05:25,573 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 [2021-11-07 14:05:25,577 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 [2021-11-07 14:05:25,856 INFO L354 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2021-11-07 14:05:25,857 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 [2021-11-07 14:05:25,860 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 [2021-11-07 14:05:25,915 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-07 14:05:25,916 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 [2021-11-07 14:05:25,924 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-07 14:05:25,925 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 [2021-11-07 14:05:35,430 WARN L227 SmtUtils]: Spent 7.18s on a formula simplification. DAG size of input: 1000 DAG size of output: 390 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-07 14:05:35,432 INFO L354 Elim1Store]: treesize reduction 6824, result has 10.2 percent of original size [2021-11-07 14:05:35,435 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 [2021-11-07 14:05:55,981 WARN L227 SmtUtils]: Spent 20.54s on a formula simplification that was a NOOP. DAG size: 2503 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-07 14:06:15,986 WARN L227 SmtUtils]: Spent 19.98s on a formula simplification that was a NOOP. DAG size: 2497 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-07 14:07:47,167 WARN L227 SmtUtils]: Spent 1.45m on a formula simplification. DAG size of input: 3231 DAG size of output: 1110 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-07 14:07:47,169 INFO L354 Elim1Store]: treesize reduction 32874, result has 15.5 percent of original size [2021-11-07 14:07:47,172 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 [2021-11-07 14:08:07,589 WARN L227 SmtUtils]: Spent 20.41s on a formula simplification that was a NOOP. DAG size: 3407 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-07 14:08:28,019 WARN L227 SmtUtils]: Spent 20.22s on a formula simplification that was a NOOP. DAG size: 3403 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-07 14:12:30,400 WARN L227 SmtUtils]: Spent 3.49m on a formula simplification. DAG size of input: 1809 DAG size of output: 1809 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-07 14:14:38,713 WARN L227 SmtUtils]: Spent 18.41s on a formula simplification that was a NOOP. DAG size: 1788 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-07 14:15:24,551 WARN L227 SmtUtils]: Spent 9.24s on a formula simplification that was a NOOP. DAG size: 1779 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-07 14:16:01,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,437 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 [2021-11-07 14:16:01,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:16:01,498 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 [2021-11-07 14:17:05,779 WARN L227 SmtUtils]: Spent 18.55s on a formula simplification that was a NOOP. DAG size: 1788 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-07 14:17:52,288 WARN L227 SmtUtils]: Spent 9.44s on a formula simplification that was a NOOP. DAG size: 1779 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-07 14:18:29,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,925 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 [2021-11-07 14:18:29,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 14:18:29,985 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 Killed by 15