./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 17:19:53,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 17:19:53,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 17:19:53,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 17:19:53,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 17:19:53,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 17:19:53,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 17:19:53,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 17:19:53,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 17:19:53,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 17:19:53,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 17:19:53,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 17:19:53,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 17:19:53,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 17:19:53,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 17:19:53,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 17:19:53,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 17:19:53,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 17:19:53,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 17:19:53,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 17:19:53,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 17:19:53,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 17:19:53,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 17:19:53,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 17:19:53,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 17:19:53,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 17:19:53,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 17:19:53,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 17:19:53,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 17:19:53,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 17:19:53,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 17:19:53,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 17:19:53,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 17:19:53,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 17:19:53,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 17:19:53,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 17:19:53,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 17:19:53,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 17:19:53,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 17:19:53,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 17:19:53,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 17:19:53,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 17:19:53,204 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 17:19:53,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 17:19:53,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 17:19:53,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 17:19:53,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 17:19:53,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 17:19:53,207 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 17:19:53,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 17:19:53,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 17:19:53,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 17:19:53,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 17:19:53,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 17:19:53,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 17:19:53,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 17:19:53,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 17:19:53,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 17:19:53,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 17:19:53,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 17:19:53,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 17:19:53,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:19:53,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 17:19:53,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 17:19:53,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 17:19:53,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 17:19:53,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 17:19:53,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 17:19:53,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 17:19:53,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 17:19:53,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 17:19:53,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b [2021-11-05 17:19:53,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 17:19:53,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 17:19:53,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 17:19:53,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 17:19:53,452 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 17:19:53,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-05 17:19:53,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/416f14b98/6b966feeaedc4738b59715022236487c/FLAG97d5c9cca [2021-11-05 17:19:54,083 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 17:19:54,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-05 17:19:54,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/416f14b98/6b966feeaedc4738b59715022236487c/FLAG97d5c9cca [2021-11-05 17:19:54,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/416f14b98/6b966feeaedc4738b59715022236487c [2021-11-05 17:19:54,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 17:19:54,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 17:19:54,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 17:19:54,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 17:19:54,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 17:19:54,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:19:54" (1/1) ... [2021-11-05 17:19:54,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7b014e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:54, skipping insertion in model container [2021-11-05 17:19:54,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 05:19:54" (1/1) ... [2021-11-05 17:19:54,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 17:19:54,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 17:19:55,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2021-11-05 17:19:55,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:19:55,640 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 17:19:55,721 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2021-11-05 17:19:55,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 17:19:55,948 INFO L208 MainTranslator]: Completed translation [2021-11-05 17:19:55,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55 WrapperNode [2021-11-05 17:19:55,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 17:19:55,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 17:19:55,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 17:19:55,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 17:19:55,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 17:19:56,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 17:19:56,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 17:19:56,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 17:19:56,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 17:19:56,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 17:19:56,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 17:19:56,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 17:19:56,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (1/1) ... [2021-11-05 17:19:56,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 17:19:56,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 17:19:56,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 17:19:56,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 17:19:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-05 17:19:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 17:19:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 17:19:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 17:19:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 17:19:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 17:19:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 17:19:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 17:19:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 17:19:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 17:19:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 17:19:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 17:19:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 17:19:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 17:19:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 17:19:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 17:19:56,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 17:20:24,343 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 17:20:24,343 INFO L299 CfgBuilder]: Removed 1746 assume(true) statements. [2021-11-05 17:20:24,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:20:24 BoogieIcfgContainer [2021-11-05 17:20:24,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 17:20:24,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 17:20:24,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 17:20:24,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 17:20:24,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 05:19:54" (1/3) ... [2021-11-05 17:20:24,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169c701c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:20:24, skipping insertion in model container [2021-11-05 17:20:24,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 05:19:55" (2/3) ... [2021-11-05 17:20:24,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169c701c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 05:20:24, skipping insertion in model container [2021-11-05 17:20:24,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 05:20:24" (3/3) ... [2021-11-05 17:20:24,353 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-05 17:20:24,356 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 17:20:24,357 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-05 17:20:24,402 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 17:20:24,408 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 17:20:24,409 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-05 17:20:24,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 2043 states, 1971 states have (on average 1.4662607813292745) internal successors, (2890), 2042 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:24,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 17:20:24,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:24,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:24,451 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:24,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash -196032821, now seen corresponding path program 1 times [2021-11-05 17:20:24,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:24,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929845441] [2021-11-05 17:20:24,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:24,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:25,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:25,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929845441] [2021-11-05 17:20:25,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929845441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:25,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:25,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:25,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074528384] [2021-11-05 17:20:25,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:25,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:25,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:25,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:25,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:25,159 INFO L87 Difference]: Start difference. First operand has 2043 states, 1971 states have (on average 1.4662607813292745) internal successors, (2890), 2042 states have internal predecessors, (2890), 0 states have call successors, (0), 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 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) [2021-11-05 17:20:25,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:25,507 INFO L93 Difference]: Finished difference Result 5539 states and 7828 transitions. [2021-11-05 17:20:25,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:25,509 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 31 [2021-11-05 17:20:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:25,530 INFO L225 Difference]: With dead ends: 5539 [2021-11-05 17:20:25,530 INFO L226 Difference]: Without dead ends: 3480 [2021-11-05 17:20:25,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:25,542 INFO L933 BasicCegarLoop]: 2764 mSDtfsCounter, 2020 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 5451 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.71ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 208.91ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:25,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2020 Valid, 5451 Invalid, 20 Unknown, 0 Unchecked, 15.71ms Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 208.91ms Time] [2021-11-05 17:20:25,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2021-11-05 17:20:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3338. [2021-11-05 17:20:25,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 3267 states have (on average 1.4074074074074074) internal successors, (4598), 3337 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:25,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 4598 transitions. [2021-11-05 17:20:25,663 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 4598 transitions. Word has length 31 [2021-11-05 17:20:25,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:25,664 INFO L470 AbstractCegarLoop]: Abstraction has 3338 states and 4598 transitions. [2021-11-05 17:20:25,664 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) [2021-11-05 17:20:25,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 4598 transitions. [2021-11-05 17:20:25,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-05 17:20:25,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:25,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:25,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 17:20:25,668 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:25,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:25,668 INFO L85 PathProgramCache]: Analyzing trace with hash 713317064, now seen corresponding path program 1 times [2021-11-05 17:20:25,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:25,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275741264] [2021-11-05 17:20:25,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:25,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:26,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:26,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275741264] [2021-11-05 17:20:26,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275741264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:26,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:26,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:26,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381582437] [2021-11-05 17:20:26,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:26,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:26,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:26,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:26,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:26,021 INFO L87 Difference]: Start difference. First operand 3338 states and 4598 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) [2021-11-05 17:20:26,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:26,293 INFO L93 Difference]: Finished difference Result 8430 states and 11658 transitions. [2021-11-05 17:20:26,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:26,294 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 [2021-11-05 17:20:26,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:26,311 INFO L225 Difference]: With dead ends: 8430 [2021-11-05 17:20:26,312 INFO L226 Difference]: Without dead ends: 5142 [2021-11-05 17:20:26,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:26,322 INFO L933 BasicCegarLoop]: 3472 mSDtfsCounter, 1695 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 156.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 6136 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.79ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 182.06ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:26,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1695 Valid, 6136 Invalid, 25 Unknown, 0 Unchecked, 6.79ms Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 182.06ms Time] [2021-11-05 17:20:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2021-11-05 17:20:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 5038. [2021-11-05 17:20:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5038 states, 4967 states have (on average 1.4215824441312663) internal successors, (7061), 5037 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5038 states to 5038 states and 7061 transitions. [2021-11-05 17:20:26,433 INFO L78 Accepts]: Start accepts. Automaton has 5038 states and 7061 transitions. Word has length 32 [2021-11-05 17:20:26,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:26,434 INFO L470 AbstractCegarLoop]: Abstraction has 5038 states and 7061 transitions. [2021-11-05 17:20:26,435 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) [2021-11-05 17:20:26,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5038 states and 7061 transitions. [2021-11-05 17:20:26,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-05 17:20:26,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:26,441 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] [2021-11-05 17:20:26,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 17:20:26,443 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:26,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:26,443 INFO L85 PathProgramCache]: Analyzing trace with hash -294363701, now seen corresponding path program 1 times [2021-11-05 17:20:26,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:26,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560544828] [2021-11-05 17:20:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:26,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:26,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:26,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:26,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560544828] [2021-11-05 17:20:26,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560544828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:26,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:26,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:26,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051835336] [2021-11-05 17:20:26,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:26,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:26,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:26,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:26,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:26,731 INFO L87 Difference]: Start difference. First operand 5038 states and 7061 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) [2021-11-05 17:20:28,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:29,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:29,124 INFO L93 Difference]: Finished difference Result 14932 states and 20966 transitions. [2021-11-05 17:20:29,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:29,125 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 [2021-11-05 17:20:29,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:29,155 INFO L225 Difference]: With dead ends: 14932 [2021-11-05 17:20:29,155 INFO L226 Difference]: Without dead ends: 9944 [2021-11-05 17:20:29,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:29,179 INFO L933 BasicCegarLoop]: 3470 mSDtfsCounter, 2614 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2117.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 6190 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.13ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2230.92ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:29,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2614 Valid, 6190 Invalid, 15 Unknown, 0 Unchecked, 7.13ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2230.92ms Time] [2021-11-05 17:20:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9944 states. [2021-11-05 17:20:29,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9944 to 9806. [2021-11-05 17:20:29,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9806 states, 9735 states have (on average 1.4260914227015922) internal successors, (13883), 9805 states have internal predecessors, (13883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:29,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9806 states to 9806 states and 13883 transitions. [2021-11-05 17:20:29,460 INFO L78 Accepts]: Start accepts. Automaton has 9806 states and 13883 transitions. Word has length 35 [2021-11-05 17:20:29,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:29,461 INFO L470 AbstractCegarLoop]: Abstraction has 9806 states and 13883 transitions. [2021-11-05 17:20:29,461 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) [2021-11-05 17:20:29,461 INFO L276 IsEmpty]: Start isEmpty. Operand 9806 states and 13883 transitions. [2021-11-05 17:20:29,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-05 17:20:29,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:29,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:29,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 17:20:29,464 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:29,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:29,465 INFO L85 PathProgramCache]: Analyzing trace with hash -80370529, now seen corresponding path program 1 times [2021-11-05 17:20:29,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:29,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236884471] [2021-11-05 17:20:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:29,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:29,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:29,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236884471] [2021-11-05 17:20:29,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236884471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:29,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:29,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:29,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546382524] [2021-11-05 17:20:29,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:29,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:29,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:29,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:29,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:29,718 INFO L87 Difference]: Start difference. First operand 9806 states and 13883 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:30,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:30,112 INFO L93 Difference]: Finished difference Result 26909 states and 38135 transitions. [2021-11-05 17:20:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:30,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2021-11-05 17:20:30,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:30,174 INFO L225 Difference]: With dead ends: 26909 [2021-11-05 17:20:30,174 INFO L226 Difference]: Without dead ends: 17153 [2021-11-05 17:20:30,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:30,196 INFO L933 BasicCegarLoop]: 3477 mSDtfsCounter, 2253 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 146.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 6146 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.04ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163.97ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:30,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2253 Valid, 6146 Invalid, 20 Unknown, 0 Unchecked, 7.04ms Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 163.97ms Time] [2021-11-05 17:20:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17153 states. [2021-11-05 17:20:30,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17153 to 17036. [2021-11-05 17:20:30,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17036 states, 16965 states have (on average 1.4288829944002357) internal successors, (24241), 17035 states have internal predecessors, (24241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17036 states to 17036 states and 24241 transitions. [2021-11-05 17:20:30,658 INFO L78 Accepts]: Start accepts. Automaton has 17036 states and 24241 transitions. Word has length 37 [2021-11-05 17:20:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:30,659 INFO L470 AbstractCegarLoop]: Abstraction has 17036 states and 24241 transitions. [2021-11-05 17:20:30,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:30,660 INFO L276 IsEmpty]: Start isEmpty. Operand 17036 states and 24241 transitions. [2021-11-05 17:20:30,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-05 17:20:30,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:30,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:30,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 17:20:30,661 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:30,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:30,661 INFO L85 PathProgramCache]: Analyzing trace with hash -315993567, now seen corresponding path program 1 times [2021-11-05 17:20:30,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:30,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224687784] [2021-11-05 17:20:30,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:30,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:30,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:30,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224687784] [2021-11-05 17:20:30,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224687784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:30,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:30,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:30,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644340077] [2021-11-05 17:20:30,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:30,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:30,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:30,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:30,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:30,884 INFO L87 Difference]: Start difference. First operand 17036 states and 24241 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:31,375 INFO L93 Difference]: Finished difference Result 48495 states and 68924 transitions. [2021-11-05 17:20:31,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:31,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2021-11-05 17:20:31,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:31,454 INFO L225 Difference]: With dead ends: 48495 [2021-11-05 17:20:31,454 INFO L226 Difference]: Without dead ends: 31509 [2021-11-05 17:20:31,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:31,491 INFO L933 BasicCegarLoop]: 3909 mSDtfsCounter, 2478 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 6587 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.44ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 136.25ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:31,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2478 Valid, 6587 Invalid, 11 Unknown, 0 Unchecked, 7.44ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 136.25ms Time] [2021-11-05 17:20:31,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31509 states. [2021-11-05 17:20:32,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31509 to 31352. [2021-11-05 17:20:32,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31352 states, 31281 states have (on average 1.4267127010006073) internal successors, (44629), 31351 states have internal predecessors, (44629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31352 states to 31352 states and 44629 transitions. [2021-11-05 17:20:32,168 INFO L78 Accepts]: Start accepts. Automaton has 31352 states and 44629 transitions. Word has length 38 [2021-11-05 17:20:32,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:32,169 INFO L470 AbstractCegarLoop]: Abstraction has 31352 states and 44629 transitions. [2021-11-05 17:20:32,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:32,169 INFO L276 IsEmpty]: Start isEmpty. Operand 31352 states and 44629 transitions. [2021-11-05 17:20:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 17:20:32,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:32,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:32,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 17:20:32,170 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:32,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:32,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1468083286, now seen corresponding path program 1 times [2021-11-05 17:20:32,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:32,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324256561] [2021-11-05 17:20:32,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:32,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:32,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:32,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324256561] [2021-11-05 17:20:32,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324256561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:32,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:32,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:32,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637256669] [2021-11-05 17:20:32,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:32,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:32,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:32,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:32,477 INFO L87 Difference]: Start difference. First operand 31352 states and 44629 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:33,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:33,236 INFO L93 Difference]: Finished difference Result 89720 states and 127707 transitions. [2021-11-05 17:20:33,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:33,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2021-11-05 17:20:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:33,374 INFO L225 Difference]: With dead ends: 89720 [2021-11-05 17:20:33,374 INFO L226 Difference]: Without dead ends: 58418 [2021-11-05 17:20:33,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:33,424 INFO L933 BasicCegarLoop]: 4144 mSDtfsCounter, 2504 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2504 SdHoareTripleChecker+Valid, 6822 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.08ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.99ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:33,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2504 Valid, 6822 Invalid, 11 Unknown, 0 Unchecked, 6.08ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 104.99ms Time] [2021-11-05 17:20:33,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58418 states. [2021-11-05 17:20:34,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58418 to 58272. [2021-11-05 17:20:34,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58272 states, 58201 states have (on average 1.426453153725881) internal successors, (83021), 58271 states have internal predecessors, (83021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:34,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58272 states to 58272 states and 83021 transitions. [2021-11-05 17:20:34,762 INFO L78 Accepts]: Start accepts. Automaton has 58272 states and 83021 transitions. Word has length 39 [2021-11-05 17:20:34,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:34,763 INFO L470 AbstractCegarLoop]: Abstraction has 58272 states and 83021 transitions. [2021-11-05 17:20:34,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:34,763 INFO L276 IsEmpty]: Start isEmpty. Operand 58272 states and 83021 transitions. [2021-11-05 17:20:34,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-05 17:20:34,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:34,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:34,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 17:20:34,764 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:34,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:34,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1492464629, now seen corresponding path program 1 times [2021-11-05 17:20:34,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:34,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571850444] [2021-11-05 17:20:34,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:34,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:35,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:35,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571850444] [2021-11-05 17:20:35,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571850444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:35,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:35,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:20:35,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547862511] [2021-11-05 17:20:35,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:35,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:20:35,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:35,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:20:35,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:20:35,042 INFO L87 Difference]: Start difference. First operand 58272 states and 83021 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:36,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:36,448 INFO L93 Difference]: Finished difference Result 116802 states and 166367 transitions. [2021-11-05 17:20:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:20:36,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2021-11-05 17:20:36,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:36,590 INFO L225 Difference]: With dead ends: 116802 [2021-11-05 17:20:36,590 INFO L226 Difference]: Without dead ends: 58580 [2021-11-05 17:20:36,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 147.68ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 17:20:36,654 INFO L933 BasicCegarLoop]: 2790 mSDtfsCounter, 10715 mSDsluCounter, 5506 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 129.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10715 SdHoareTripleChecker+Valid, 8296 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.11ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 144.77ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:36,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10715 Valid, 8296 Invalid, 23 Unknown, 0 Unchecked, 14.11ms Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 144.77ms Time] [2021-11-05 17:20:36,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58580 states. [2021-11-05 17:20:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58580 to 29198. [2021-11-05 17:20:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29198 states, 29127 states have (on average 1.4274384591616027) internal successors, (41577), 29197 states have internal predecessors, (41577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29198 states to 29198 states and 41577 transitions. [2021-11-05 17:20:37,573 INFO L78 Accepts]: Start accepts. Automaton has 29198 states and 41577 transitions. Word has length 44 [2021-11-05 17:20:37,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:37,573 INFO L470 AbstractCegarLoop]: Abstraction has 29198 states and 41577 transitions. [2021-11-05 17:20:37,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:37,574 INFO L276 IsEmpty]: Start isEmpty. Operand 29198 states and 41577 transitions. [2021-11-05 17:20:37,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-05 17:20:37,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:37,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:37,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 17:20:37,575 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:37,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:37,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1549722931, now seen corresponding path program 1 times [2021-11-05 17:20:37,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:37,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521500057] [2021-11-05 17:20:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:37,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:37,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:37,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521500057] [2021-11-05 17:20:37,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521500057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:37,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:37,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:37,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493107672] [2021-11-05 17:20:37,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:37,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:37,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:37,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:37,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:37,767 INFO L87 Difference]: Start difference. First operand 29198 states and 41577 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:39,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:40,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:40,529 INFO L93 Difference]: Finished difference Result 29198 states and 41577 transitions. [2021-11-05 17:20:40,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:40,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2021-11-05 17:20:40,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:40,575 INFO L225 Difference]: With dead ends: 29198 [2021-11-05 17:20:40,575 INFO L226 Difference]: Without dead ends: 29186 [2021-11-05 17:20:40,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.90ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:40,583 INFO L933 BasicCegarLoop]: 2728 mSDtfsCounter, 1868 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2254.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.54ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2368.09ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:40,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1868 Valid, 3547 Invalid, 35 Unknown, 0 Unchecked, 3.54ms Time], IncrementalHoareTripleChecker [11 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 2368.09ms Time] [2021-11-05 17:20:40,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29186 states. [2021-11-05 17:20:41,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29186 to 29186. [2021-11-05 17:20:41,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29186 states, 29121 states have (on average 1.4247450293602555) internal successors, (41490), 29185 states have internal predecessors, (41490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29186 states to 29186 states and 41490 transitions. [2021-11-05 17:20:41,307 INFO L78 Accepts]: Start accepts. Automaton has 29186 states and 41490 transitions. Word has length 44 [2021-11-05 17:20:41,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:41,308 INFO L470 AbstractCegarLoop]: Abstraction has 29186 states and 41490 transitions. [2021-11-05 17:20:41,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:41,308 INFO L276 IsEmpty]: Start isEmpty. Operand 29186 states and 41490 transitions. [2021-11-05 17:20:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-05 17:20:41,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:41,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:41,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 17:20:41,313 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:41,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:41,313 INFO L85 PathProgramCache]: Analyzing trace with hash -796765436, now seen corresponding path program 1 times [2021-11-05 17:20:41,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:41,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877854873] [2021-11-05 17:20:41,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:41,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:41,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:41,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:41,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877854873] [2021-11-05 17:20:41,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877854873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:41,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:41,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:41,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589035986] [2021-11-05 17:20:41,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:41,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:41,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:41,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:41,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:41,533 INFO L87 Difference]: Start difference. First operand 29186 states and 41490 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:43,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:44,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:44,966 INFO L93 Difference]: Finished difference Result 63913 states and 90902 transitions. [2021-11-05 17:20:44,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:44,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-11-05 17:20:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:45,020 INFO L225 Difference]: With dead ends: 63913 [2021-11-05 17:20:45,020 INFO L226 Difference]: Without dead ends: 34806 [2021-11-05 17:20:45,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:45,064 INFO L933 BasicCegarLoop]: 2672 mSDtfsCounter, 837 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 74 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2635.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 4888 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.37ms SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2783.29ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:45,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [837 Valid, 4888 Invalid, 205 Unknown, 0 Unchecked, 4.37ms Time], IncrementalHoareTripleChecker [74 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 2783.29ms Time] [2021-11-05 17:20:45,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34806 states. [2021-11-05 17:20:45,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34806 to 34468. [2021-11-05 17:20:45,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34468 states, 34413 states have (on average 1.4125475837619503) internal successors, (48610), 34467 states have internal predecessors, (48610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34468 states to 34468 states and 48610 transitions. [2021-11-05 17:20:45,917 INFO L78 Accepts]: Start accepts. Automaton has 34468 states and 48610 transitions. Word has length 45 [2021-11-05 17:20:45,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:45,917 INFO L470 AbstractCegarLoop]: Abstraction has 34468 states and 48610 transitions. [2021-11-05 17:20:45,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:45,918 INFO L276 IsEmpty]: Start isEmpty. Operand 34468 states and 48610 transitions. [2021-11-05 17:20:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-05 17:20:45,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:45,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:45,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 17:20:45,919 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:45,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1070080439, now seen corresponding path program 1 times [2021-11-05 17:20:45,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:45,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334566302] [2021-11-05 17:20:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:45,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 17:20:46,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:46,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334566302] [2021-11-05 17:20:46,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334566302] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:46,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:46,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:46,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751249525] [2021-11-05 17:20:46,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:46,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:46,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:46,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:46,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:46,146 INFO L87 Difference]: Start difference. First operand 34468 states and 48610 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:48,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:48,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:48,840 INFO L93 Difference]: Finished difference Result 34468 states and 48610 transitions. [2021-11-05 17:20:48,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:48,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2021-11-05 17:20:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:48,986 INFO L225 Difference]: With dead ends: 34468 [2021-11-05 17:20:48,987 INFO L226 Difference]: Without dead ends: 34461 [2021-11-05 17:20:48,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:48,998 INFO L933 BasicCegarLoop]: 2698 mSDtfsCounter, 2618 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2060.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2618 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2061.42ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:48,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2618 Valid, 2752 Invalid, 1 Unknown, 0 Unchecked, 2.97ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2061.42ms Time] [2021-11-05 17:20:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34461 states. [2021-11-05 17:20:49,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34461 to 34458. [2021-11-05 17:20:49,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34458 states, 34404 states have (on average 1.4116672479944192) internal successors, (48567), 34457 states have internal predecessors, (48567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34458 states to 34458 states and 48567 transitions. [2021-11-05 17:20:49,716 INFO L78 Accepts]: Start accepts. Automaton has 34458 states and 48567 transitions. Word has length 46 [2021-11-05 17:20:49,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:49,719 INFO L470 AbstractCegarLoop]: Abstraction has 34458 states and 48567 transitions. [2021-11-05 17:20:49,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:49,720 INFO L276 IsEmpty]: Start isEmpty. Operand 34458 states and 48567 transitions. [2021-11-05 17:20:49,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 17:20:49,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:49,721 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:49,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 17:20:49,722 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:49,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1521084131, now seen corresponding path program 1 times [2021-11-05 17:20:49,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:49,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610760513] [2021-11-05 17:20:49,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:49,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:20:49,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:49,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610760513] [2021-11-05 17:20:49,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610760513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:49,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:49,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:49,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560814282] [2021-11-05 17:20:49,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:49,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:49,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:49,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:49,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:49,941 INFO L87 Difference]: Start difference. First operand 34458 states and 48567 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:52,003 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:53,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:53,418 INFO L93 Difference]: Finished difference Result 68785 states and 97008 transitions. [2021-11-05 17:20:53,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:53,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-05 17:20:53,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:53,471 INFO L225 Difference]: With dead ends: 68785 [2021-11-05 17:20:53,472 INFO L226 Difference]: Without dead ends: 34406 [2021-11-05 17:20:53,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:53,518 INFO L933 BasicCegarLoop]: 3095 mSDtfsCounter, 2175 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 69 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2554.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 3974 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.50ms SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2703.16ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:53,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2175 Valid, 3974 Invalid, 175 Unknown, 0 Unchecked, 4.50ms Time], IncrementalHoareTripleChecker [69 Valid, 105 Invalid, 1 Unknown, 0 Unchecked, 2703.16ms Time] [2021-11-05 17:20:53,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34406 states. [2021-11-05 17:20:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34406 to 33815. [2021-11-05 17:20:54,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33815 states, 33790 states have (on average 1.3964782480023676) internal successors, (47187), 33814 states have internal predecessors, (47187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:54,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33815 states to 33815 states and 47187 transitions. [2021-11-05 17:20:54,485 INFO L78 Accepts]: Start accepts. Automaton has 33815 states and 47187 transitions. Word has length 76 [2021-11-05 17:20:54,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:54,485 INFO L470 AbstractCegarLoop]: Abstraction has 33815 states and 47187 transitions. [2021-11-05 17:20:54,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:54,486 INFO L276 IsEmpty]: Start isEmpty. Operand 33815 states and 47187 transitions. [2021-11-05 17:20:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 17:20:54,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:54,495 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:54,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 17:20:54,495 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:54,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:54,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1545134786, now seen corresponding path program 1 times [2021-11-05 17:20:54,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:54,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480390075] [2021-11-05 17:20:54,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:54,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 17:20:54,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:54,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480390075] [2021-11-05 17:20:54,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480390075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:54,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:54,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:20:54,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395248889] [2021-11-05 17:20:54,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:54,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:20:54,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:54,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:20:54,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:54,753 INFO L87 Difference]: Start difference. First operand 33815 states and 47187 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:56,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 17:20:57,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:20:57,584 INFO L93 Difference]: Finished difference Result 33815 states and 47187 transitions. [2021-11-05 17:20:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:20:57,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-05 17:20:57,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:20:57,635 INFO L225 Difference]: With dead ends: 33815 [2021-11-05 17:20:57,635 INFO L226 Difference]: Without dead ends: 33803 [2021-11-05 17:20:57,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:20:57,650 INFO L933 BasicCegarLoop]: 2621 mSDtfsCounter, 737 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2138.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.95ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2240.46ms IncrementalHoareTripleChecker+Time [2021-11-05 17:20:57,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [737 Valid, 4484 Invalid, 29 Unknown, 0 Unchecked, 2.95ms Time], IncrementalHoareTripleChecker [9 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2240.46ms Time] [2021-11-05 17:20:57,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33803 states. [2021-11-05 17:20:58,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33803 to 33803. [2021-11-05 17:20:58,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33803 states, 33784 states have (on average 1.3922862893677481) internal successors, (47037), 33802 states have internal predecessors, (47037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:58,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33803 states to 33803 states and 47037 transitions. [2021-11-05 17:20:58,434 INFO L78 Accepts]: Start accepts. Automaton has 33803 states and 47037 transitions. Word has length 82 [2021-11-05 17:20:58,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:20:58,435 INFO L470 AbstractCegarLoop]: Abstraction has 33803 states and 47037 transitions. [2021-11-05 17:20:58,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:20:58,435 INFO L276 IsEmpty]: Start isEmpty. Operand 33803 states and 47037 transitions. [2021-11-05 17:20:58,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-05 17:20:58,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:20:58,452 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:20:58,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 17:20:58,452 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:20:58,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:20:58,452 INFO L85 PathProgramCache]: Analyzing trace with hash -125920046, now seen corresponding path program 1 times [2021-11-05 17:20:58,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:20:58,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763018827] [2021-11-05 17:20:58,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:20:58,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:20:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:20:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 17:20:59,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:20:59,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763018827] [2021-11-05 17:20:59,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763018827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:20:59,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:20:59,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:20:59,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468670869] [2021-11-05 17:20:59,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:20:59,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:20:59,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:20:59,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:20:59,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:20:59,084 INFO L87 Difference]: Start difference. First operand 33803 states and 47037 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:01,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:21:01,522 INFO L93 Difference]: Finished difference Result 124505 states and 173470 transitions. [2021-11-05 17:21:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:21:01,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-05 17:21:01,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:21:01,671 INFO L225 Difference]: With dead ends: 124505 [2021-11-05 17:21:01,671 INFO L226 Difference]: Without dead ends: 90781 [2021-11-05 17:21:01,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 126.62ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:21:01,727 INFO L933 BasicCegarLoop]: 5060 mSDtfsCounter, 6683 mSDsluCounter, 6783 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 264.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6683 SdHoareTripleChecker+Valid, 11843 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.87ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 282.22ms IncrementalHoareTripleChecker+Time [2021-11-05 17:21:01,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6683 Valid, 11843 Invalid, 29 Unknown, 0 Unchecked, 14.87ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 282.22ms Time] [2021-11-05 17:21:01,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90781 states. [2021-11-05 17:21:02,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90781 to 33835. [2021-11-05 17:21:02,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33835 states, 33816 states have (on average 1.3914419209841495) internal successors, (47053), 33834 states have internal predecessors, (47053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33835 states to 33835 states and 47053 transitions. [2021-11-05 17:21:03,125 INFO L78 Accepts]: Start accepts. Automaton has 33835 states and 47053 transitions. Word has length 99 [2021-11-05 17:21:03,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:21:03,125 INFO L470 AbstractCegarLoop]: Abstraction has 33835 states and 47053 transitions. [2021-11-05 17:21:03,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:03,126 INFO L276 IsEmpty]: Start isEmpty. Operand 33835 states and 47053 transitions. [2021-11-05 17:21:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 17:21:03,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:21:03,140 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:21:03,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 17:21:03,140 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:21:03,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:21:03,140 INFO L85 PathProgramCache]: Analyzing trace with hash -398804520, now seen corresponding path program 1 times [2021-11-05 17:21:03,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:21:03,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554771470] [2021-11-05 17:21:03,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:21:03,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:21:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:21:03,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 17:21:03,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:21:03,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554771470] [2021-11-05 17:21:03,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554771470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:21:03,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:21:03,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 17:21:03,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205257507] [2021-11-05 17:21:03,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:21:03,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 17:21:03,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:21:03,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 17:21:03,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:21:03,356 INFO L87 Difference]: Start difference. First operand 33835 states and 47053 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:21:04,858 INFO L93 Difference]: Finished difference Result 94179 states and 131225 transitions. [2021-11-05 17:21:04,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 17:21:04,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-05 17:21:04,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:21:04,949 INFO L225 Difference]: With dead ends: 94179 [2021-11-05 17:21:04,949 INFO L226 Difference]: Without dead ends: 60423 [2021-11-05 17:21:04,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 17:21:04,991 INFO L933 BasicCegarLoop]: 4652 mSDtfsCounter, 2401 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 6890 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.11ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.22ms IncrementalHoareTripleChecker+Time [2021-11-05 17:21:04,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2401 Valid, 6890 Invalid, 7 Unknown, 0 Unchecked, 5.11ms Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 68.22ms Time] [2021-11-05 17:21:05,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60423 states. [2021-11-05 17:21:06,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60423 to 33867. [2021-11-05 17:21:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33867 states, 33848 states have (on average 1.3910423067832665) internal successors, (47084), 33866 states have internal predecessors, (47084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:06,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33867 states to 33867 states and 47084 transitions. [2021-11-05 17:21:06,201 INFO L78 Accepts]: Start accepts. Automaton has 33867 states and 47084 transitions. Word has length 101 [2021-11-05 17:21:06,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:21:06,201 INFO L470 AbstractCegarLoop]: Abstraction has 33867 states and 47084 transitions. [2021-11-05 17:21:06,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:06,201 INFO L276 IsEmpty]: Start isEmpty. Operand 33867 states and 47084 transitions. [2021-11-05 17:21:06,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-05 17:21:06,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:21:06,217 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:21:06,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 17:21:06,218 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:21:06,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:21:06,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2062124512, now seen corresponding path program 1 times [2021-11-05 17:21:06,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:21:06,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521929465] [2021-11-05 17:21:06,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:21:06,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:21:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:21:06,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 17:21:06,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:21:06,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521929465] [2021-11-05 17:21:06,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521929465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:21:06,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:21:06,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 17:21:06,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825749452] [2021-11-05 17:21:06,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:21:06,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 17:21:06,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:21:06,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 17:21:06,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 17:21:06,712 INFO L87 Difference]: Start difference. First operand 33867 states and 47084 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:09,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:21:09,767 INFO L93 Difference]: Finished difference Result 121784 states and 169484 transitions. [2021-11-05 17:21:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 17:21:09,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-05 17:21:09,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:21:09,919 INFO L225 Difference]: With dead ends: 121784 [2021-11-05 17:21:09,919 INFO L226 Difference]: Without dead ends: 87996 [2021-11-05 17:21:09,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 132.59ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:21:09,978 INFO L933 BasicCegarLoop]: 4832 mSDtfsCounter, 6449 mSDsluCounter, 6777 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 282.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6449 SdHoareTripleChecker+Valid, 11609 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.69ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 299.57ms IncrementalHoareTripleChecker+Time [2021-11-05 17:21:09,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6449 Valid, 11609 Invalid, 29 Unknown, 0 Unchecked, 13.69ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 299.57ms Time] [2021-11-05 17:21:10,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87996 states. [2021-11-05 17:21:11,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87996 to 33876. [2021-11-05 17:21:11,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33876 states, 33858 states have (on average 1.3902179691653376) internal successors, (47070), 33875 states have internal predecessors, (47070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:11,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33876 states to 33876 states and 47070 transitions. [2021-11-05 17:21:11,673 INFO L78 Accepts]: Start accepts. Automaton has 33876 states and 47070 transitions. Word has length 105 [2021-11-05 17:21:11,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 17:21:11,674 INFO L470 AbstractCegarLoop]: Abstraction has 33876 states and 47070 transitions. [2021-11-05 17:21:11,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 33876 states and 47070 transitions. [2021-11-05 17:21:11,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-05 17:21:11,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 17:21:11,706 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 17:21:11,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 17:21:11,707 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-05 17:21:11,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 17:21:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1971870911, now seen corresponding path program 1 times [2021-11-05 17:21:11,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 17:21:11,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525500424] [2021-11-05 17:21:11,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 17:21:11,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 17:21:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 17:21:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 17:21:12,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 17:21:12,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525500424] [2021-11-05 17:21:12,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525500424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 17:21:12,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 17:21:12,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 17:21:12,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901215271] [2021-11-05 17:21:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 17:21:12,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 17:21:12,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 17:21:12,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 17:21:12,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 17:21:12,560 INFO L87 Difference]: Start difference. First operand 33876 states and 47070 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 17:21:23,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 17:21:23,722 INFO L93 Difference]: Finished difference Result 283111 states and 394956 transitions. [2021-11-05 17:21:23,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 17:21:23,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 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 141 [2021-11-05 17:21:23,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 17:21:24,360 INFO L225 Difference]: With dead ends: 283111 [2021-11-05 17:21:24,360 INFO L226 Difference]: Without dead ends: 249314 [2021-11-05 17:21:24,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 320.48ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-05 17:21:24,447 INFO L933 BasicCegarLoop]: 6073 mSDtfsCounter, 19659 mSDsluCounter, 17297 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1910.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19659 SdHoareTripleChecker+Valid, 23370 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.81ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2030.58ms IncrementalHoareTripleChecker+Time [2021-11-05 17:21:24,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19659 Valid, 23370 Invalid, 469 Unknown, 0 Unchecked, 35.81ms Time], IncrementalHoareTripleChecker [39 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 2030.58ms Time] [2021-11-05 17:21:24,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249314 states.