./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-commit-tester/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.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 c2255c939c83cd7eedc3c7f637d06dea23ce3a82d37039af88ba670fb379695f --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 01:56:42,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 01:56:42,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 01:56:42,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 01:56:42,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 01:56:42,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 01:56:42,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 01:56:42,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 01:56:42,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 01:56:42,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 01:56:42,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 01:56:42,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 01:56:42,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 01:56:42,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 01:56:42,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 01:56:42,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 01:56:42,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 01:56:42,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 01:56:42,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 01:56:42,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 01:56:42,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 01:56:42,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 01:56:42,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 01:56:42,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 01:56:42,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 01:56:42,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 01:56:42,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 01:56:42,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 01:56:42,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 01:56:42,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 01:56:42,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 01:56:42,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 01:56:42,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 01:56:42,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 01:56:42,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 01:56:42,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 01:56:42,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 01:56:42,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 01:56:42,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 01:56:42,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 01:56:42,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 01:56:42,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 01:56:42,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 01:56:42,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 01:56:42,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 01:56:42,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 01:56:42,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 01:56:42,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 01:56:42,295 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 01:56:42,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 01:56:42,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 01:56:42,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 01:56:42,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 01:56:42,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 01:56:42,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 01:56:42,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 01:56:42,298 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 01:56:42,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 01:56:42,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 01:56:42,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 01:56:42,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 01:56:42,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 01:56:42,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 01:56:42,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 01:56:42,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 01:56:42,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 01:56:42,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 01:56:42,300 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 01:56:42,300 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 01:56:42,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 01:56:42,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 01:56:42,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2255c939c83cd7eedc3c7f637d06dea23ce3a82d37039af88ba670fb379695f [2021-11-04 01:56:42,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 01:56:42,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 01:56:42,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 01:56:42,528 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 01:56:42,529 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 01:56:42,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2021-11-04 01:56:42,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b26846c3/652330ba09fd4673bcbe90da9d1e80f0/FLAGe9356ab3a [2021-11-04 01:56:43,341 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 01:56:43,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2021-11-04 01:56:43,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b26846c3/652330ba09fd4673bcbe90da9d1e80f0/FLAGe9356ab3a [2021-11-04 01:56:43,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b26846c3/652330ba09fd4673bcbe90da9d1e80f0 [2021-11-04 01:56:43,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 01:56:43,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 01:56:43,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 01:56:43,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 01:56:43,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 01:56:43,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 01:56:43" (1/1) ... [2021-11-04 01:56:43,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208f6835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:43, skipping insertion in model container [2021-11-04 01:56:43,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 01:56:43" (1/1) ... [2021-11-04 01:56:43,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 01:56:44,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 01:56:46,478 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-commit-tester/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i[341143,341156] [2021-11-04 01:56:46,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 01:56:46,743 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 01:56:47,290 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-commit-tester/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i[341143,341156] [2021-11-04 01:56:47,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 01:56:47,481 INFO L208 MainTranslator]: Completed translation [2021-11-04 01:56:47,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47 WrapperNode [2021-11-04 01:56:47,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 01:56:47,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 01:56:47,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 01:56:47,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 01:56:47,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:47,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:47,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 01:56:47,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 01:56:47,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 01:56:47,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 01:56:47,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:47,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:47,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:47,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:48,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:48,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:48,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:48,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 01:56:48,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 01:56:48,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 01:56:48,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 01:56:48,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (1/1) ... [2021-11-04 01:56:48,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 01:56:48,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 01:56:48,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 01:56:48,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 01:56:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-04 01:56:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 01:56:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 01:56:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 01:56:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 01:56:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 01:56:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 01:56:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 01:56:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 01:56:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 01:56:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 01:56:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 01:56:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 01:56:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 01:56:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 01:56:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 01:59:27,021 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 01:59:27,021 INFO L299 CfgBuilder]: Removed 344 assume(true) statements. [2021-11-04 01:59:27,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 01:59:27 BoogieIcfgContainer [2021-11-04 01:59:27,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 01:59:27,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 01:59:27,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 01:59:27,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 01:59:27,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 01:56:43" (1/3) ... [2021-11-04 01:59:27,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586b87a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 01:59:27, skipping insertion in model container [2021-11-04 01:59:27,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 01:56:47" (2/3) ... [2021-11-04 01:59:27,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586b87a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 01:59:27, skipping insertion in model container [2021-11-04 01:59:27,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 01:59:27" (3/3) ... [2021-11-04 01:59:27,033 INFO L111 eAbstractionObserver]: Analyzing ICFG main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2021-11-04 01:59:27,037 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 01:59:27,037 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-04 01:59:27,075 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 01:59:27,080 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 01:59:27,080 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-04 01:59:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 448 states, 428 states have (on average 1.5093457943925233) internal successors, (646), 447 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 01:59:27,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-04 01:59:27,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 01:59:27,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-04 01:59:27,103 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 01:59:27,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 01:59:27,107 INFO L85 PathProgramCache]: Analyzing trace with hash 936147530, now seen corresponding path program 1 times [2021-11-04 01:59:27,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 01:59:27,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964254373] [2021-11-04 01:59:27,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 01:59:27,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 01:59:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 01:59:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 01:59:27,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 01:59:27,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964254373] [2021-11-04 01:59:27,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964254373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 01:59:27,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 01:59:27,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 01:59:27,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669841106] [2021-11-04 01:59:27,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 01:59:27,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 01:59:27,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 01:59:27,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 01:59:27,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 01:59:27,947 INFO L87 Difference]: Start difference. First operand has 448 states, 428 states have (on average 1.5093457943925233) internal successors, (646), 447 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 01:59:30,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:32,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:35,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:37,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:39,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:42,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:45,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:47,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:54,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:56,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 01:59:57,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 01:59:57,815 INFO L93 Difference]: Finished difference Result 878 states and 1274 transitions. [2021-11-04 01:59:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 01:59:57,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2021-11-04 01:59:57,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 01:59:57,829 INFO L225 Difference]: With dead ends: 878 [2021-11-04 01:59:57,829 INFO L226 Difference]: Without dead ends: 428 [2021-11-04 01:59:57,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 01:59:57,838 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 122 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 14 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28081.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.44ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29664.09ms IncrementalHoareTripleChecker+Time [2021-11-04 01:59:57,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 0 Invalid, 1094 Unknown, 0 Unchecked, 19.44ms Time], IncrementalHoareTripleChecker [14 Valid, 1070 Invalid, 10 Unknown, 0 Unchecked, 29664.09ms Time] [2021-11-04 01:59:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-11-04 01:59:57,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2021-11-04 01:59:57,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 417 states have (on average 1.4556354916067147) internal successors, (607), 427 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 01:59:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 607 transitions. [2021-11-04 01:59:57,894 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 607 transitions. Word has length 6 [2021-11-04 01:59:57,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 01:59:57,895 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 607 transitions. [2021-11-04 01:59:57,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 01:59:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 607 transitions. [2021-11-04 01:59:57,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-04 01:59:57,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 01:59:57,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-04 01:59:57,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 01:59:57,896 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 01:59:57,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 01:59:57,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1044197774, now seen corresponding path program 1 times [2021-11-04 01:59:57,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 01:59:57,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962518219] [2021-11-04 01:59:57,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 01:59:57,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 01:59:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 01:59:58,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 01:59:58,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 01:59:58,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962518219] [2021-11-04 01:59:58,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962518219] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 01:59:58,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 01:59:58,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 01:59:58,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710012634] [2021-11-04 01:59:58,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 01:59:58,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 01:59:58,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 01:59:58,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 01:59:58,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 01:59:58,288 INFO L87 Difference]: Start difference. First operand 428 states and 607 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:00:00,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:03,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:05,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:07,997 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:10,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:12,724 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:15,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:17,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:25,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:27,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:29,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:00:29,886 INFO L93 Difference]: Finished difference Result 619 states and 867 transitions. [2021-11-04 02:00:29,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:00:29,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-11-04 02:00:29,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:00:29,890 INFO L225 Difference]: With dead ends: 619 [2021-11-04 02:00:29,891 INFO L226 Difference]: Without dead ends: 617 [2021-11-04 02:00:29,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:00:29,892 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 256 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29938.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.45ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31448.75ms IncrementalHoareTripleChecker+Time [2021-11-04 02:00:29,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 0 Invalid, 1195 Unknown, 0 Unchecked, 15.45ms Time], IncrementalHoareTripleChecker [1 Valid, 1184 Invalid, 10 Unknown, 0 Unchecked, 31448.75ms Time] [2021-11-04 02:00:29,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2021-11-04 02:00:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 590. [2021-11-04 02:00:29,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 579 states have (on average 1.450777202072539) internal successors, (840), 589 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:00:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 840 transitions. [2021-11-04 02:00:29,918 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 840 transitions. Word has length 7 [2021-11-04 02:00:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:00:29,918 INFO L470 AbstractCegarLoop]: Abstraction has 590 states and 840 transitions. [2021-11-04 02:00:29,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:00:29,918 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 840 transitions. [2021-11-04 02:00:29,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-04 02:00:29,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:00:29,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 02:00:29,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 02:00:29,920 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:00:29,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:00:29,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1989607252, now seen corresponding path program 1 times [2021-11-04 02:00:29,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:00:29,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160538935] [2021-11-04 02:00:29,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:00:29,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:00:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:00:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:00:30,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:00:30,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160538935] [2021-11-04 02:00:30,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160538935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:00:30,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:00:30,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:00:30,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757821085] [2021-11-04 02:00:30,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:00:30,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:00:30,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:00:30,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:00:30,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:00:30,376 INFO L87 Difference]: Start difference. First operand 590 states and 840 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:00:32,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:35,471 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:37,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:40,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:42,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:44,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:47,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:49,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:00:57,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:00,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:01:02,404 INFO L93 Difference]: Finished difference Result 620 states and 868 transitions. [2021-11-04 02:01:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:01:02,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2021-11-04 02:01:02,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:01:02,409 INFO L225 Difference]: With dead ends: 620 [2021-11-04 02:01:02,409 INFO L226 Difference]: Without dead ends: 618 [2021-11-04 02:01:02,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:01:02,411 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 253 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30277.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.99ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31897.09ms IncrementalHoareTripleChecker+Time [2021-11-04 02:01:02,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 0 Invalid, 1198 Unknown, 0 Unchecked, 11.99ms Time], IncrementalHoareTripleChecker [1 Valid, 1187 Invalid, 10 Unknown, 0 Unchecked, 31897.09ms Time] [2021-11-04 02:01:02,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2021-11-04 02:01:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 591. [2021-11-04 02:01:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 580 states have (on average 1.45) internal successors, (841), 590 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:01:02,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 841 transitions. [2021-11-04 02:01:02,438 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 841 transitions. Word has length 8 [2021-11-04 02:01:02,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:01:02,438 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 841 transitions. [2021-11-04 02:01:02,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:01:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 841 transitions. [2021-11-04 02:01:02,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-04 02:01:02,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:01:02,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 02:01:02,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 02:01:02,440 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:01:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:01:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1548282556, now seen corresponding path program 1 times [2021-11-04 02:01:02,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:01:02,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333238348] [2021-11-04 02:01:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:01:02,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:01:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:01:02,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:01:02,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:01:02,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333238348] [2021-11-04 02:01:02,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333238348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:01:02,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:01:02,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:01:02,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129449461] [2021-11-04 02:01:02,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:01:02,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:01:02,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:01:02,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:01:02,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:01:02,879 INFO L87 Difference]: Start difference. First operand 591 states and 841 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:01:04,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:07,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:10,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:12,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:14,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:17,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:20,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:22,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:30,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:32,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:34,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:01:34,464 INFO L93 Difference]: Finished difference Result 621 states and 869 transitions. [2021-11-04 02:01:34,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:01:34,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2021-11-04 02:01:34,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:01:34,467 INFO L225 Difference]: With dead ends: 621 [2021-11-04 02:01:34,467 INFO L226 Difference]: Without dead ends: 619 [2021-11-04 02:01:34,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:01:34,468 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 250 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29836.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.65ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31463.28ms IncrementalHoareTripleChecker+Time [2021-11-04 02:01:34,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 0 Invalid, 1201 Unknown, 0 Unchecked, 10.65ms Time], IncrementalHoareTripleChecker [1 Valid, 1190 Invalid, 10 Unknown, 0 Unchecked, 31463.28ms Time] [2021-11-04 02:01:34,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2021-11-04 02:01:34,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 592. [2021-11-04 02:01:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 581 states have (on average 1.4492254733218588) internal successors, (842), 591 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) [2021-11-04 02:01:34,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 842 transitions. [2021-11-04 02:01:34,485 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 842 transitions. Word has length 9 [2021-11-04 02:01:34,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:01:34,485 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 842 transitions. [2021-11-04 02:01:34,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:01:34,485 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 842 transitions. [2021-11-04 02:01:34,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-04 02:01:34,486 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:01:34,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 02:01:34,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 02:01:34,487 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:01:34,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:01:34,487 INFO L85 PathProgramCache]: Analyzing trace with hash 752118878, now seen corresponding path program 1 times [2021-11-04 02:01:34,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:01:34,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576268539] [2021-11-04 02:01:34,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:01:34,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:01:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:01:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:01:34,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:01:34,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576268539] [2021-11-04 02:01:34,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576268539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:01:34,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:01:34,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:01:34,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056516751] [2021-11-04 02:01:34,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:01:34,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:01:34,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:01:34,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:01:34,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:01:34,863 INFO L87 Difference]: Start difference. First operand 592 states and 842 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:01:36,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:39,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:42,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:44,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:46,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:49,264 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:51,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:01:54,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:02,053 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:04,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:06,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:02:06,778 INFO L93 Difference]: Finished difference Result 622 states and 869 transitions. [2021-11-04 02:02:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:02:06,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-11-04 02:02:06,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:02:06,782 INFO L225 Difference]: With dead ends: 622 [2021-11-04 02:02:06,782 INFO L226 Difference]: Without dead ends: 615 [2021-11-04 02:02:06,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:02:06,783 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 247 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30218.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31792.28ms IncrementalHoareTripleChecker+Time [2021-11-04 02:02:06,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 0 Invalid, 1203 Unknown, 0 Unchecked, 8.85ms Time], IncrementalHoareTripleChecker [0 Valid, 1193 Invalid, 10 Unknown, 0 Unchecked, 31792.28ms Time] [2021-11-04 02:02:06,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2021-11-04 02:02:06,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 588. [2021-11-04 02:02:06,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 577 states have (on average 1.4506065857885615) internal successors, (837), 587 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:02:06,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 837 transitions. [2021-11-04 02:02:06,799 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 837 transitions. Word has length 10 [2021-11-04 02:02:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:02:06,800 INFO L470 AbstractCegarLoop]: Abstraction has 588 states and 837 transitions. [2021-11-04 02:02:06,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:02:06,800 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 837 transitions. [2021-11-04 02:02:06,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-04 02:02:06,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:02:06,802 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] [2021-11-04 02:02:06,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 02:02:06,802 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:02:06,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:02:06,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1686685008, now seen corresponding path program 1 times [2021-11-04 02:02:06,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:02:06,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333457279] [2021-11-04 02:02:06,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:02:06,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:02:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:02:07,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:02:07,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:02:07,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333457279] [2021-11-04 02:02:07,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333457279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:02:07,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:02:07,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:02:07,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122727633] [2021-11-04 02:02:07,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:02:07,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 02:02:07,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:02:07,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 02:02:07,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-04 02:02:07,411 INFO L87 Difference]: Start difference. First operand 588 states and 837 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:02:09,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:13,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:15,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:18,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:21,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:24,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:26,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:30,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:39,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:42,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:44,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:02:44,947 INFO L93 Difference]: Finished difference Result 1205 states and 1703 transitions. [2021-11-04 02:02:44,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-04 02:02:44,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-11-04 02:02:44,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:02:44,950 INFO L225 Difference]: With dead ends: 1205 [2021-11-04 02:02:44,950 INFO L226 Difference]: Without dead ends: 619 [2021-11-04 02:02:44,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 87.61ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-04 02:02:44,952 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 240 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35552.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.44ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37371.93ms IncrementalHoareTripleChecker+Time [2021-11-04 02:02:44,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 0 Invalid, 1801 Unknown, 0 Unchecked, 18.44ms Time], IncrementalHoareTripleChecker [1 Valid, 1790 Invalid, 10 Unknown, 0 Unchecked, 37371.93ms Time] [2021-11-04 02:02:44,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2021-11-04 02:02:44,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 589. [2021-11-04 02:02:44,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 578 states have (on average 1.4498269896193772) internal successors, (838), 588 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:02:44,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 838 transitions. [2021-11-04 02:02:44,968 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 838 transitions. Word has length 22 [2021-11-04 02:02:44,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:02:44,968 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 838 transitions. [2021-11-04 02:02:44,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:02:44,969 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 838 transitions. [2021-11-04 02:02:44,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-04 02:02:44,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:02:44,970 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] [2021-11-04 02:02:44,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 02:02:44,971 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:02:44,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:02:44,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1019148295, now seen corresponding path program 1 times [2021-11-04 02:02:44,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:02:44,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490166273] [2021-11-04 02:02:44,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:02:44,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:02:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:02:45,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:02:45,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:02:45,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490166273] [2021-11-04 02:02:45,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490166273] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:02:45,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:02:45,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:02:45,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661489238] [2021-11-04 02:02:45,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:02:45,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:02:45,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:02:45,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:02:45,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:02:45,428 INFO L87 Difference]: Start difference. First operand 589 states and 838 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:02:47,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:50,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:53,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:55,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:02:58,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:00,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:03,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:05,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:11,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:14,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:15,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:03:15,499 INFO L93 Difference]: Finished difference Result 608 states and 859 transitions. [2021-11-04 02:03:15,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:03:15,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-11-04 02:03:15,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:03:15,502 INFO L225 Difference]: With dead ends: 608 [2021-11-04 02:03:15,502 INFO L226 Difference]: Without dead ends: 598 [2021-11-04 02:03:15,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:03:15,503 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 177 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 15 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28408.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.86ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29986.96ms IncrementalHoareTripleChecker+Time [2021-11-04 02:03:15,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 0 Invalid, 1031 Unknown, 0 Unchecked, 6.86ms Time], IncrementalHoareTripleChecker [15 Valid, 1006 Invalid, 10 Unknown, 0 Unchecked, 29986.96ms Time] [2021-11-04 02:03:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2021-11-04 02:03:15,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2021-11-04 02:03:15,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 589 states have (on average 1.434634974533107) internal successors, (845), 597 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:03:15,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 845 transitions. [2021-11-04 02:03:15,519 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 845 transitions. Word has length 24 [2021-11-04 02:03:15,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:03:15,520 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 845 transitions. [2021-11-04 02:03:15,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:03:15,520 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 845 transitions. [2021-11-04 02:03:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-04 02:03:15,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:03:15,524 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] [2021-11-04 02:03:15,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 02:03:15,524 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:03:15,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:03:15,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1516732346, now seen corresponding path program 1 times [2021-11-04 02:03:15,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:03:15,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377889451] [2021-11-04 02:03:15,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:03:15,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:03:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:03:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:03:16,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:03:16,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377889451] [2021-11-04 02:03:16,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377889451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:03:16,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:03:16,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:03:16,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002630328] [2021-11-04 02:03:16,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:03:16,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:03:16,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:03:16,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:03:16,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:03:16,033 INFO L87 Difference]: Start difference. First operand 598 states and 845 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:03:18,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:21,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:23,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:26,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:29,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:31,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:33,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:36,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:42,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:44,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:46,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:03:46,046 INFO L93 Difference]: Finished difference Result 598 states and 845 transitions. [2021-11-04 02:03:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:03:46,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-11-04 02:03:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:03:46,048 INFO L225 Difference]: With dead ends: 598 [2021-11-04 02:03:46,048 INFO L226 Difference]: Without dead ends: 596 [2021-11-04 02:03:46,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:03:46,049 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 161 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 11 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28361.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.23ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29934.08ms IncrementalHoareTripleChecker+Time [2021-11-04 02:03:46,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 0 Invalid, 1039 Unknown, 0 Unchecked, 7.23ms Time], IncrementalHoareTripleChecker [11 Valid, 1018 Invalid, 10 Unknown, 0 Unchecked, 29934.08ms Time] [2021-11-04 02:03:46,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-11-04 02:03:46,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2021-11-04 02:03:46,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 588 states have (on average 1.433673469387755) internal successors, (843), 595 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:03:46,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 843 transitions. [2021-11-04 02:03:46,064 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 843 transitions. Word has length 24 [2021-11-04 02:03:46,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:03:46,064 INFO L470 AbstractCegarLoop]: Abstraction has 596 states and 843 transitions. [2021-11-04 02:03:46,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:03:46,064 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 843 transitions. [2021-11-04 02:03:46,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-04 02:03:46,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:03:46,065 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] [2021-11-04 02:03:46,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 02:03:46,065 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:03:46,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:03:46,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1372297908, now seen corresponding path program 1 times [2021-11-04 02:03:46,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:03:46,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759651352] [2021-11-04 02:03:46,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:03:46,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:03:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:03:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:03:46,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:03:46,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759651352] [2021-11-04 02:03:46,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759651352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:03:46,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:03:46,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:03:46,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502215345] [2021-11-04 02:03:46,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:03:46,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:03:46,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:03:46,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:03:46,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:03:46,448 INFO L87 Difference]: Start difference. First operand 596 states and 843 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:03:48,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:52,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:54,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:56,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:03:59,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:02,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:04,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:07,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:13,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:15,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:16,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:04:16,794 INFO L93 Difference]: Finished difference Result 596 states and 843 transitions. [2021-11-04 02:04:16,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:04:16,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-11-04 02:04:16,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:04:16,798 INFO L225 Difference]: With dead ends: 596 [2021-11-04 02:04:16,798 INFO L226 Difference]: Without dead ends: 594 [2021-11-04 02:04:16,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:04:16,799 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 168 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 11 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28657.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.53ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30269.81ms IncrementalHoareTripleChecker+Time [2021-11-04 02:04:16,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 0 Invalid, 1028 Unknown, 0 Unchecked, 7.53ms Time], IncrementalHoareTripleChecker [11 Valid, 1007 Invalid, 10 Unknown, 0 Unchecked, 30269.81ms Time] [2021-11-04 02:04:16,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-11-04 02:04:16,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2021-11-04 02:04:16,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 587 states have (on average 1.432708688245315) internal successors, (841), 593 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:04:16,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 841 transitions. [2021-11-04 02:04:16,812 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 841 transitions. Word has length 25 [2021-11-04 02:04:16,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:04:16,812 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 841 transitions. [2021-11-04 02:04:16,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:04:16,813 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 841 transitions. [2021-11-04 02:04:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-04 02:04:16,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:04:16,813 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] [2021-11-04 02:04:16,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 02:04:16,814 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:04:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:04:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash 785800736, now seen corresponding path program 1 times [2021-11-04 02:04:16,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:04:16,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920445581] [2021-11-04 02:04:16,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:04:16,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:04:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:04:17,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 02:04:17,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:04:17,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920445581] [2021-11-04 02:04:17,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920445581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:04:17,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:04:17,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:04:17,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220076759] [2021-11-04 02:04:17,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:04:17,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:04:17,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:04:17,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:04:17,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:04:17,158 INFO L87 Difference]: Start difference. First operand 594 states and 841 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 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) [2021-11-04 02:04:19,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:22,746 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:25,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:27,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:30,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:32,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:35,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:38,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:44,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:46,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:48,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:04:48,280 INFO L93 Difference]: Finished difference Result 598 states and 845 transitions. [2021-11-04 02:04:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:04:48,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 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 [2021-11-04 02:04:48,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:04:48,283 INFO L225 Difference]: With dead ends: 598 [2021-11-04 02:04:48,283 INFO L226 Difference]: Without dead ends: 596 [2021-11-04 02:04:48,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:04:48,284 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 145 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 12 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29471.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.86ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31045.61ms IncrementalHoareTripleChecker+Time [2021-11-04 02:04:48,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 0 Invalid, 1043 Unknown, 0 Unchecked, 6.86ms Time], IncrementalHoareTripleChecker [12 Valid, 1021 Invalid, 10 Unknown, 0 Unchecked, 31045.61ms Time] [2021-11-04 02:04:48,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-11-04 02:04:48,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 594. [2021-11-04 02:04:48,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 587 states have (on average 1.432708688245315) internal successors, (841), 593 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:04:48,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 841 transitions. [2021-11-04 02:04:48,298 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 841 transitions. Word has length 29 [2021-11-04 02:04:48,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:04:48,299 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 841 transitions. [2021-11-04 02:04:48,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 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) [2021-11-04 02:04:48,299 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 841 transitions. [2021-11-04 02:04:48,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-04 02:04:48,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:04:48,300 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] [2021-11-04 02:04:48,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-04 02:04:48,301 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:04:48,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:04:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1333436880, now seen corresponding path program 1 times [2021-11-04 02:04:48,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:04:48,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585116157] [2021-11-04 02:04:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:04:48,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:04:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:04:48,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 02:04:48,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:04:48,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585116157] [2021-11-04 02:04:48,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585116157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:04:48,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:04:48,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:04:48,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746151998] [2021-11-04 02:04:48,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:04:48,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:04:48,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:04:48,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:04:48,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:04:48,717 INFO L87 Difference]: Start difference. First operand 594 states and 841 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:04:50,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:54,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:56,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:04:59,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:01,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:04,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:06,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:09,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:15,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:18,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:05:19,493 INFO L93 Difference]: Finished difference Result 598 states and 845 transitions. [2021-11-04 02:05:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:05:19,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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 [2021-11-04 02:05:19,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:05:19,496 INFO L225 Difference]: With dead ends: 598 [2021-11-04 02:05:19,496 INFO L226 Difference]: Without dead ends: 596 [2021-11-04 02:05:19,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:05:19,497 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 171 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 12 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29087.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.41ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30701.86ms IncrementalHoareTripleChecker+Time [2021-11-04 02:05:19,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 0 Invalid, 1015 Unknown, 0 Unchecked, 6.41ms Time], IncrementalHoareTripleChecker [12 Valid, 993 Invalid, 10 Unknown, 0 Unchecked, 30701.86ms Time] [2021-11-04 02:05:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-11-04 02:05:19,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 594. [2021-11-04 02:05:19,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 587 states have (on average 1.432708688245315) internal successors, (841), 593 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:05:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 841 transitions. [2021-11-04 02:05:19,511 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 841 transitions. Word has length 32 [2021-11-04 02:05:19,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:05:19,511 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 841 transitions. [2021-11-04 02:05:19,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:05:19,512 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 841 transitions. [2021-11-04 02:05:19,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-04 02:05:19,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:05:19,513 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] [2021-11-04 02:05:19,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-04 02:05:19,513 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:05:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:05:19,514 INFO L85 PathProgramCache]: Analyzing trace with hash 713769163, now seen corresponding path program 1 times [2021-11-04 02:05:19,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:05:19,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866071699] [2021-11-04 02:05:19,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:05:19,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:05:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:05:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 02:05:19,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:05:19,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866071699] [2021-11-04 02:05:19,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866071699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:05:19,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:05:19,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:05:19,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662826067] [2021-11-04 02:05:19,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:05:19,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:05:19,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:05:19,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:05:19,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:05:19,952 INFO L87 Difference]: Start difference. First operand 594 states and 841 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-11-04 02:05:22,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:24,946 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:27,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:29,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:32,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:34,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:36,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:39,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:46,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:49,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:05:52,105 INFO L93 Difference]: Finished difference Result 814 states and 1148 transitions. [2021-11-04 02:05:52,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:05:52,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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 32 [2021-11-04 02:05:52,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:05:52,108 INFO L225 Difference]: With dead ends: 814 [2021-11-04 02:05:52,108 INFO L226 Difference]: Without dead ends: 812 [2021-11-04 02:05:52,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:05:52,109 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 280 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30410.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.69ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32050.18ms IncrementalHoareTripleChecker+Time [2021-11-04 02:05:52,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 0 Invalid, 1179 Unknown, 0 Unchecked, 7.69ms Time], IncrementalHoareTripleChecker [1 Valid, 1168 Invalid, 10 Unknown, 0 Unchecked, 32050.18ms Time] [2021-11-04 02:05:52,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2021-11-04 02:05:52,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 797. [2021-11-04 02:05:52,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 790 states have (on average 1.429113924050633) internal successors, (1129), 796 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:05:52,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1129 transitions. [2021-11-04 02:05:52,124 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1129 transitions. Word has length 32 [2021-11-04 02:05:52,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:05:52,125 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1129 transitions. [2021-11-04 02:05:52,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-11-04 02:05:52,125 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1129 transitions. [2021-11-04 02:05:52,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-04 02:05:52,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:05:52,126 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] [2021-11-04 02:05:52,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-04 02:05:52,126 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:05:52,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:05:52,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1552875374, now seen corresponding path program 1 times [2021-11-04 02:05:52,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:05:52,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922899622] [2021-11-04 02:05:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:05:52,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:05:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:05:52,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 02:05:52,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:05:52,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922899622] [2021-11-04 02:05:52,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922899622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:05:52,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:05:52,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:05:52,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143474591] [2021-11-04 02:05:52,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:05:52,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:05:52,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:05:52,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:05:52,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:05:52,441 INFO L87 Difference]: Start difference. First operand 797 states and 1129 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:05:54,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:05:58,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:00,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:02,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:05,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:08,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:11,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:14,501 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:20,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:23,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:24,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:06:24,670 INFO L93 Difference]: Finished difference Result 1233 states and 1748 transitions. [2021-11-04 02:06:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:06:24,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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 [2021-11-04 02:06:24,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:06:24,674 INFO L225 Difference]: With dead ends: 1233 [2021-11-04 02:06:24,674 INFO L226 Difference]: Without dead ends: 802 [2021-11-04 02:06:24,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:06:24,675 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30406.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32144.11ms IncrementalHoareTripleChecker+Time [2021-11-04 02:06:24,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 1187 Unknown, 0 Unchecked, 6.81ms Time], IncrementalHoareTripleChecker [0 Valid, 1177 Invalid, 10 Unknown, 0 Unchecked, 32144.11ms Time] [2021-11-04 02:06:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2021-11-04 02:06:24,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 798. [2021-11-04 02:06:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 791 states have (on average 1.4285714285714286) internal successors, (1130), 797 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:06:24,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1130 transitions. [2021-11-04 02:06:24,693 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1130 transitions. Word has length 32 [2021-11-04 02:06:24,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:06:24,693 INFO L470 AbstractCegarLoop]: Abstraction has 798 states and 1130 transitions. [2021-11-04 02:06:24,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:06:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1130 transitions. [2021-11-04 02:06:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-04 02:06:24,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:06:24,695 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] [2021-11-04 02:06:24,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-04 02:06:24,695 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:06:24,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:06:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1308313738, now seen corresponding path program 1 times [2021-11-04 02:06:24,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:06:24,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343670291] [2021-11-04 02:06:24,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:06:24,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:06:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:06:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 02:06:25,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:06:25,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343670291] [2021-11-04 02:06:25,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343670291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:06:25,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:06:25,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:06:25,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038111593] [2021-11-04 02:06:25,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:06:25,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:06:25,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:06:25,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:06:25,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:06:25,135 INFO L87 Difference]: Start difference. First operand 798 states and 1130 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-11-04 02:06:27,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:30,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:32,566 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:34,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:37,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:40,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:43,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:46,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:51,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:54,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:06:57,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:06:57,538 INFO L93 Difference]: Finished difference Result 1014 states and 1427 transitions. [2021-11-04 02:06:57,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:06:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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 32 [2021-11-04 02:06:57,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:06:57,541 INFO L225 Difference]: With dead ends: 1014 [2021-11-04 02:06:57,541 INFO L226 Difference]: Without dead ends: 1012 [2021-11-04 02:06:57,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:06:57,542 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 264 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30570.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.93ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32295.96ms IncrementalHoareTripleChecker+Time [2021-11-04 02:06:57,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 0 Invalid, 1182 Unknown, 0 Unchecked, 7.93ms Time], IncrementalHoareTripleChecker [1 Valid, 1171 Invalid, 10 Unknown, 0 Unchecked, 32295.96ms Time] [2021-11-04 02:06:57,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2021-11-04 02:06:57,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 991. [2021-11-04 02:06:57,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 984 states have (on average 1.4247967479674797) internal successors, (1402), 990 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:06:57,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1402 transitions. [2021-11-04 02:06:57,564 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1402 transitions. Word has length 32 [2021-11-04 02:06:57,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:06:57,564 INFO L470 AbstractCegarLoop]: Abstraction has 991 states and 1402 transitions. [2021-11-04 02:06:57,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-11-04 02:06:57,565 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1402 transitions. [2021-11-04 02:06:57,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-04 02:06:57,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:06:57,566 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] [2021-11-04 02:06:57,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-04 02:06:57,566 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:06:57,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:06:57,567 INFO L85 PathProgramCache]: Analyzing trace with hash 652007451, now seen corresponding path program 1 times [2021-11-04 02:06:57,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:06:57,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655533565] [2021-11-04 02:06:57,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:06:57,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:06:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:06:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 02:06:58,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:06:58,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655533565] [2021-11-04 02:06:58,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655533565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:06:58,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:06:58,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:06:58,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89023348] [2021-11-04 02:06:58,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:06:58,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:06:58,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:06:58,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:06:58,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:06:58,011 INFO L87 Difference]: Start difference. First operand 991 states and 1402 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:07:00,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:03,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:05,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:07,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:10,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:12,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:16,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:18,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:24,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:27,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:07:30,084 INFO L93 Difference]: Finished difference Result 1017 states and 1430 transitions. [2021-11-04 02:07:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:07:30,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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 33 [2021-11-04 02:07:30,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:07:30,087 INFO L225 Difference]: With dead ends: 1017 [2021-11-04 02:07:30,087 INFO L226 Difference]: Without dead ends: 1015 [2021-11-04 02:07:30,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:07:30,088 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 277 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30298.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.99ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31970.25ms IncrementalHoareTripleChecker+Time [2021-11-04 02:07:30,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 0 Invalid, 1182 Unknown, 0 Unchecked, 6.99ms Time], IncrementalHoareTripleChecker [1 Valid, 1171 Invalid, 10 Unknown, 0 Unchecked, 31970.25ms Time] [2021-11-04 02:07:30,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2021-11-04 02:07:30,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 994. [2021-11-04 02:07:30,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 987 states have (on average 1.4235055724417427) internal successors, (1405), 993 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:07:30,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1405 transitions. [2021-11-04 02:07:30,108 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1405 transitions. Word has length 33 [2021-11-04 02:07:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:07:30,108 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1405 transitions. [2021-11-04 02:07:30,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:07:30,108 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1405 transitions. [2021-11-04 02:07:30,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-04 02:07:30,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:07:30,109 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] [2021-11-04 02:07:30,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-04 02:07:30,110 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:07:30,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:07:30,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2079320712, now seen corresponding path program 1 times [2021-11-04 02:07:30,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:07:30,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469428004] [2021-11-04 02:07:30,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:07:30,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:07:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:07:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 02:07:30,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:07:30,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469428004] [2021-11-04 02:07:30,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469428004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:07:30,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:07:30,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:07:30,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828094362] [2021-11-04 02:07:30,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:07:30,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:07:30,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:07:30,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:07:30,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:07:30,483 INFO L87 Difference]: Start difference. First operand 994 states and 1405 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:07:32,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:35,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:37,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:40,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:43,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:45,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:48,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:51,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:56,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:07:59,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:02,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:08:02,681 INFO L93 Difference]: Finished difference Result 1219 states and 1714 transitions. [2021-11-04 02:08:02,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:08:02,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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 33 [2021-11-04 02:08:02,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:08:02,684 INFO L225 Difference]: With dead ends: 1219 [2021-11-04 02:08:02,684 INFO L226 Difference]: Without dead ends: 1217 [2021-11-04 02:08:02,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:08:02,685 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 270 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30332.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.90ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32087.94ms IncrementalHoareTripleChecker+Time [2021-11-04 02:08:02,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 0 Invalid, 1182 Unknown, 0 Unchecked, 7.90ms Time], IncrementalHoareTripleChecker [1 Valid, 1171 Invalid, 10 Unknown, 0 Unchecked, 32087.94ms Time] [2021-11-04 02:08:02,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2021-11-04 02:08:02,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1191. [2021-11-04 02:08:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 1184 states have (on average 1.4222972972972974) internal successors, (1684), 1190 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:08:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1684 transitions. [2021-11-04 02:08:02,711 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1684 transitions. Word has length 33 [2021-11-04 02:08:02,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:08:02,711 INFO L470 AbstractCegarLoop]: Abstraction has 1191 states and 1684 transitions. [2021-11-04 02:08:02,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:08:02,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1684 transitions. [2021-11-04 02:08:02,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-04 02:08:02,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:08:02,713 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] [2021-11-04 02:08:02,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-04 02:08:02,713 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:08:02,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:08:02,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1903020092, now seen corresponding path program 1 times [2021-11-04 02:08:02,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:08:02,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268946350] [2021-11-04 02:08:02,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:08:02,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:08:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:08:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 02:08:03,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:08:03,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268946350] [2021-11-04 02:08:03,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268946350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:08:03,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:08:03,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:08:03,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389639109] [2021-11-04 02:08:03,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:08:03,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:08:03,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:08:03,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:08:03,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:08:03,127 INFO L87 Difference]: Start difference. First operand 1191 states and 1684 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:08:05,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:08,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:10,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:13,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:15,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:18,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:21,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:24,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:29,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:32,530 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:35,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:08:35,450 INFO L93 Difference]: Finished difference Result 1220 states and 1715 transitions. [2021-11-04 02:08:35,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:08:35,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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 33 [2021-11-04 02:08:35,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:08:35,454 INFO L225 Difference]: With dead ends: 1220 [2021-11-04 02:08:35,454 INFO L226 Difference]: Without dead ends: 1218 [2021-11-04 02:08:35,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:08:35,454 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 261 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30475.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.05ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32213.98ms IncrementalHoareTripleChecker+Time [2021-11-04 02:08:35,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 0 Invalid, 1186 Unknown, 0 Unchecked, 8.05ms Time], IncrementalHoareTripleChecker [1 Valid, 1175 Invalid, 10 Unknown, 0 Unchecked, 32213.98ms Time] [2021-11-04 02:08:35,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2021-11-04 02:08:35,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1191. [2021-11-04 02:08:35,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 1184 states have (on average 1.4222972972972974) internal successors, (1684), 1190 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:08:35,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1684 transitions. [2021-11-04 02:08:35,483 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1684 transitions. Word has length 33 [2021-11-04 02:08:35,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:08:35,483 INFO L470 AbstractCegarLoop]: Abstraction has 1191 states and 1684 transitions. [2021-11-04 02:08:35,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-11-04 02:08:35,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1684 transitions. [2021-11-04 02:08:35,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-04 02:08:35,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:08:35,485 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] [2021-11-04 02:08:35,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-04 02:08:35,485 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:08:35,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:08:35,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1262605611, now seen corresponding path program 1 times [2021-11-04 02:08:35,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:08:35,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460834417] [2021-11-04 02:08:35,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:08:35,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:08:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:08:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 02:08:35,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:08:35,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460834417] [2021-11-04 02:08:35,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460834417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:08:35,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:08:35,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:08:35,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812209951] [2021-11-04 02:08:35,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:08:35,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:08:35,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:08:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:08:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:08:35,872 INFO L87 Difference]: Start difference. First operand 1191 states and 1684 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:08:37,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:40,947 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:43,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:45,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:48,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:50,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:53,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:08:56,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:02,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:05,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:08,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:09:08,057 INFO L93 Difference]: Finished difference Result 1223 states and 1718 transitions. [2021-11-04 02:09:08,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:09:08,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 34 [2021-11-04 02:09:08,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:09:08,061 INFO L225 Difference]: With dead ends: 1223 [2021-11-04 02:09:08,061 INFO L226 Difference]: Without dead ends: 1221 [2021-11-04 02:09:08,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:09:08,062 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 274 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30364.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.35ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32045.29ms IncrementalHoareTripleChecker+Time [2021-11-04 02:09:08,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 0 Invalid, 1185 Unknown, 0 Unchecked, 7.35ms Time], IncrementalHoareTripleChecker [1 Valid, 1174 Invalid, 10 Unknown, 0 Unchecked, 32045.29ms Time] [2021-11-04 02:09:08,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2021-11-04 02:09:08,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1195. [2021-11-04 02:09:08,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 1188 states have (on average 1.4208754208754208) internal successors, (1688), 1194 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:09:08,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1688 transitions. [2021-11-04 02:09:08,084 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1688 transitions. Word has length 34 [2021-11-04 02:09:08,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:09:08,084 INFO L470 AbstractCegarLoop]: Abstraction has 1195 states and 1688 transitions. [2021-11-04 02:09:08,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:09:08,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1688 transitions. [2021-11-04 02:09:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-04 02:09:08,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:09:08,086 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] [2021-11-04 02:09:08,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-04 02:09:08,086 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:09:08,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:09:08,087 INFO L85 PathProgramCache]: Analyzing trace with hash 34432510, now seen corresponding path program 1 times [2021-11-04 02:09:08,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:09:08,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653185440] [2021-11-04 02:09:08,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:09:08,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:09:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:09:08,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 02:09:08,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:09:08,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653185440] [2021-11-04 02:09:08,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653185440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:09:08,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:09:08,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:09:08,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721010452] [2021-11-04 02:09:08,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:09:08,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:09:08,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:09:08,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:09:08,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:09:08,392 INFO L87 Difference]: Start difference. First operand 1195 states and 1688 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:09:10,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:13,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:15,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:18,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:20,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:23,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:26,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:29,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:34,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:37,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:09:40,445 INFO L93 Difference]: Finished difference Result 1222 states and 1717 transitions. [2021-11-04 02:09:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:09:40,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 34 [2021-11-04 02:09:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:09:40,448 INFO L225 Difference]: With dead ends: 1222 [2021-11-04 02:09:40,448 INFO L226 Difference]: Without dead ends: 1220 [2021-11-04 02:09:40,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.90ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:09:40,449 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 267 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30294.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.71ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31944.08ms IncrementalHoareTripleChecker+Time [2021-11-04 02:09:40,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 0 Invalid, 1186 Unknown, 0 Unchecked, 7.71ms Time], IncrementalHoareTripleChecker [1 Valid, 1175 Invalid, 10 Unknown, 0 Unchecked, 31944.08ms Time] [2021-11-04 02:09:40,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2021-11-04 02:09:40,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1193. [2021-11-04 02:09:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1186 states have (on average 1.4215851602023608) internal successors, (1686), 1192 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:09:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1686 transitions. [2021-11-04 02:09:40,471 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1686 transitions. Word has length 34 [2021-11-04 02:09:40,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:09:40,472 INFO L470 AbstractCegarLoop]: Abstraction has 1193 states and 1686 transitions. [2021-11-04 02:09:40,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:09:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1686 transitions. [2021-11-04 02:09:40,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-04 02:09:40,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:09:40,473 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] [2021-11-04 02:09:40,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-04 02:09:40,474 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:09:40,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:09:40,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1135919404, now seen corresponding path program 1 times [2021-11-04 02:09:40,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:09:40,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820277993] [2021-11-04 02:09:40,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:09:40,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:09:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:09:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 02:09:40,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:09:40,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820277993] [2021-11-04 02:09:40,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820277993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:09:40,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:09:40,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:09:40,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63771486] [2021-11-04 02:09:40,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:09:40,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:09:40,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:09:40,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:09:40,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:09:40,777 INFO L87 Difference]: Start difference. First operand 1193 states and 1686 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:09:42,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:45,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:48,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:50,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:53,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:55,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:09:58,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:01,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:07,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:09,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:10:12,654 INFO L93 Difference]: Finished difference Result 1223 states and 1718 transitions. [2021-11-04 02:10:12,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:10:12,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 34 [2021-11-04 02:10:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:10:12,657 INFO L225 Difference]: With dead ends: 1223 [2021-11-04 02:10:12,657 INFO L226 Difference]: Without dead ends: 1221 [2021-11-04 02:10:12,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:10:12,658 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 258 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30081.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.72ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31767.55ms IncrementalHoareTripleChecker+Time [2021-11-04 02:10:12,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 0 Invalid, 1190 Unknown, 0 Unchecked, 7.72ms Time], IncrementalHoareTripleChecker [1 Valid, 1179 Invalid, 10 Unknown, 0 Unchecked, 31767.55ms Time] [2021-11-04 02:10:12,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2021-11-04 02:10:12,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1193. [2021-11-04 02:10:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1186 states have (on average 1.4215851602023608) internal successors, (1686), 1192 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:10:12,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1686 transitions. [2021-11-04 02:10:12,680 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1686 transitions. Word has length 34 [2021-11-04 02:10:12,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:10:12,680 INFO L470 AbstractCegarLoop]: Abstraction has 1193 states and 1686 transitions. [2021-11-04 02:10:12,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:10:12,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1686 transitions. [2021-11-04 02:10:12,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-04 02:10:12,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:10:12,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 02:10:12,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-04 02:10:12,682 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:10:12,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:10:12,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1657451433, now seen corresponding path program 1 times [2021-11-04 02:10:12,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:10:12,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203793038] [2021-11-04 02:10:12,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:10:12,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:10:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:10:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 02:10:13,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:10:13,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203793038] [2021-11-04 02:10:13,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203793038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:10:13,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:10:13,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:10:13,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955606696] [2021-11-04 02:10:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:10:13,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:10:13,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:10:13,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:10:13,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:10:13,025 INFO L87 Difference]: Start difference. First operand 1193 states and 1686 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:10:15,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:18,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:20,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:23,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:26,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:28,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:31,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:34,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:38,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:41,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:42,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 02:10:42,790 INFO L93 Difference]: Finished difference Result 1193 states and 1686 transitions. [2021-11-04 02:10:42,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 02:10:42,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-11-04 02:10:42,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 02:10:42,794 INFO L225 Difference]: With dead ends: 1193 [2021-11-04 02:10:42,794 INFO L226 Difference]: Without dead ends: 1191 [2021-11-04 02:10:42,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:10:42,795 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 211 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 11 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28131.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.07ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29684.69ms IncrementalHoareTripleChecker+Time [2021-11-04 02:10:42,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 0 Invalid, 967 Unknown, 0 Unchecked, 6.07ms Time], IncrementalHoareTripleChecker [11 Valid, 946 Invalid, 10 Unknown, 0 Unchecked, 29684.69ms Time] [2021-11-04 02:10:42,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2021-11-04 02:10:42,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1189. [2021-11-04 02:10:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1183 states have (on average 1.4218089602704986) internal successors, (1682), 1188 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:10:42,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1682 transitions. [2021-11-04 02:10:42,822 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1682 transitions. Word has length 35 [2021-11-04 02:10:42,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 02:10:42,822 INFO L470 AbstractCegarLoop]: Abstraction has 1189 states and 1682 transitions. [2021-11-04 02:10:42,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:10:42,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1682 transitions. [2021-11-04 02:10:42,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-04 02:10:42,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 02:10:42,824 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] [2021-11-04 02:10:42,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-04 02:10:42,824 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 02:10:42,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 02:10:42,825 INFO L85 PathProgramCache]: Analyzing trace with hash -486068379, now seen corresponding path program 1 times [2021-11-04 02:10:42,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 02:10:42,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151078596] [2021-11-04 02:10:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 02:10:42,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 02:10:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 02:10:43,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-04 02:10:43,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 02:10:43,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151078596] [2021-11-04 02:10:43,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151078596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 02:10:43,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 02:10:43,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 02:10:43,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706442708] [2021-11-04 02:10:43,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 02:10:43,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 02:10:43,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 02:10:43,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 02:10:43,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 02:10:43,276 INFO L87 Difference]: Start difference. First operand 1189 states and 1682 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 02:10:45,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 02:10:48,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15