/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:20:46,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:20:46,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:20:46,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:20:46,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:20:46,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:20:46,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:20:46,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:20:46,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:20:46,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:20:46,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:20:46,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:20:46,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:20:46,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:20:46,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:20:46,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:20:46,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:20:46,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:20:46,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:20:46,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:20:46,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:20:46,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:20:46,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:20:46,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:20:46,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:20:46,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:20:46,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:20:46,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:20:46,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:20:46,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:20:46,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:20:46,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:20:46,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:20:46,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:20:46,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:20:46,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:20:46,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:20:46,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:20:46,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:20:46,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:20:46,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:20:46,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:20:46,252 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:20:46,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:20:46,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:20:46,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:20:46,257 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:20:46,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:20:46,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:20:46,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:20:46,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:20:46,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:20:46,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:20:46,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:20:46,260 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:20:46,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:20:46,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:20:46,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:20:46,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:20:46,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:20:46,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:20:46,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:20:46,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:20:46,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:20:46,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:20:46,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:20:46,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:20:46,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:20:46,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:20:46,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:20:46,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:20:46,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:20:46,661 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:20:46,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2020-12-22 14:20:46,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9d17121/cbb586ca14984e56845da2ca6e7ad2a0/FLAGfe63c0cbd [2020-12-22 14:20:47,800 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:20:47,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2020-12-22 14:20:47,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9d17121/cbb586ca14984e56845da2ca6e7ad2a0/FLAGfe63c0cbd [2020-12-22 14:20:48,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9d17121/cbb586ca14984e56845da2ca6e7ad2a0 [2020-12-22 14:20:48,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:20:48,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:20:48,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:20:48,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:20:48,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:20:48,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:20:48" (1/1) ... [2020-12-22 14:20:48,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e82e17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:48, skipping insertion in model container [2020-12-22 14:20:48,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:20:48" (1/1) ... [2020-12-22 14:20:48,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:20:48,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:20:49,859 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2020-12-22 14:20:50,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:20:50,078 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:20:50,477 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i[159905,159918] [2020-12-22 14:20:50,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:20:50,881 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:20:50,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50 WrapperNode [2020-12-22 14:20:50,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:20:50,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:20:50,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:20:50,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:20:50,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... [2020-12-22 14:20:51,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... [2020-12-22 14:20:51,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:20:51,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:20:51,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:20:51,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:20:51,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... [2020-12-22 14:20:51,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... [2020-12-22 14:20:51,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... [2020-12-22 14:20:51,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... [2020-12-22 14:20:51,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... [2020-12-22 14:20:51,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... [2020-12-22 14:20:52,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... [2020-12-22 14:20:52,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:20:52,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:20:52,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:20:52,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:20:52,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:20:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:20:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:20:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:20:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:20:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:20:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:20:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:20:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:20:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:20:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:20:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:20:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:20:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 14:20:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:20:52,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:20:52,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:21:06,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:21:06,189 INFO L299 CfgBuilder]: Removed 2088 assume(true) statements. [2020-12-22 14:21:06,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:21:06 BoogieIcfgContainer [2020-12-22 14:21:06,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:21:06,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:21:06,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:21:06,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:21:06,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:20:48" (1/3) ... [2020-12-22 14:21:06,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21506c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:21:06, skipping insertion in model container [2020-12-22 14:21:06,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:20:50" (2/3) ... [2020-12-22 14:21:06,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21506c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:21:06, skipping insertion in model container [2020-12-22 14:21:06,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:21:06" (3/3) ... [2020-12-22 14:21:06,214 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2020-12-22 14:21:06,221 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:21:06,229 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 42 error locations. [2020-12-22 14:21:06,251 INFO L253 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2020-12-22 14:21:06,312 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:21:06,313 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:21:06,313 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:21:06,313 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:21:06,313 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:21:06,313 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:21:06,313 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:21:06,314 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:21:06,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states. [2020-12-22 14:21:06,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 14:21:06,522 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:06,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:06,524 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:06,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:06,532 INFO L82 PathProgramCache]: Analyzing trace with hash -571058910, now seen corresponding path program 1 times [2020-12-22 14:21:06,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:06,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849891169] [2020-12-22 14:21:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:07,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849891169] [2020-12-22 14:21:07,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:07,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:21:07,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480202441] [2020-12-22 14:21:07,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:21:07,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:07,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:21:07,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:21:07,190 INFO L87 Difference]: Start difference. First operand 2619 states. Second operand 2 states. [2020-12-22 14:21:07,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:07,350 INFO L93 Difference]: Finished difference Result 5234 states and 7875 transitions. [2020-12-22 14:21:07,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:21:07,352 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 71 [2020-12-22 14:21:07,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:07,384 INFO L225 Difference]: With dead ends: 5234 [2020-12-22 14:21:07,385 INFO L226 Difference]: Without dead ends: 2611 [2020-12-22 14:21:07,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:21:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2020-12-22 14:21:07,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2020-12-22 14:21:07,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2611 states. [2020-12-22 14:21:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3859 transitions. [2020-12-22 14:21:07,559 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3859 transitions. Word has length 71 [2020-12-22 14:21:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:07,560 INFO L481 AbstractCegarLoop]: Abstraction has 2611 states and 3859 transitions. [2020-12-22 14:21:07,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:21:07,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3859 transitions. [2020-12-22 14:21:07,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 14:21:07,570 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:07,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:07,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:21:07,571 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:07,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:07,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1311868076, now seen corresponding path program 1 times [2020-12-22 14:21:07,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:07,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815909757] [2020-12-22 14:21:07,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:07,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:07,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815909757] [2020-12-22 14:21:07,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:07,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:21:07,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024946548] [2020-12-22 14:21:07,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:07,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:07,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:07,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:07,914 INFO L87 Difference]: Start difference. First operand 2611 states and 3859 transitions. Second operand 3 states. [2020-12-22 14:21:08,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:08,158 INFO L93 Difference]: Finished difference Result 5832 states and 8527 transitions. [2020-12-22 14:21:08,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:08,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 14:21:08,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:08,179 INFO L225 Difference]: With dead ends: 5832 [2020-12-22 14:21:08,179 INFO L226 Difference]: Without dead ends: 3283 [2020-12-22 14:21:08,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:08,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2020-12-22 14:21:08,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 3195. [2020-12-22 14:21:08,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3195 states. [2020-12-22 14:21:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 4669 transitions. [2020-12-22 14:21:08,283 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 4669 transitions. Word has length 71 [2020-12-22 14:21:08,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:08,284 INFO L481 AbstractCegarLoop]: Abstraction has 3195 states and 4669 transitions. [2020-12-22 14:21:08,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 4669 transitions. [2020-12-22 14:21:08,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 14:21:08,289 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:08,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:08,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:21:08,290 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:08,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:08,292 INFO L82 PathProgramCache]: Analyzing trace with hash -2119557104, now seen corresponding path program 1 times [2020-12-22 14:21:08,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:08,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805575065] [2020-12-22 14:21:08,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:08,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805575065] [2020-12-22 14:21:08,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:08,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:21:08,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919584604] [2020-12-22 14:21:08,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:08,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:08,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:08,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:08,570 INFO L87 Difference]: Start difference. First operand 3195 states and 4669 transitions. Second operand 3 states. [2020-12-22 14:21:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:10,865 INFO L93 Difference]: Finished difference Result 9134 states and 13478 transitions. [2020-12-22 14:21:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:10,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-22 14:21:10,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:10,914 INFO L225 Difference]: With dead ends: 9134 [2020-12-22 14:21:10,915 INFO L226 Difference]: Without dead ends: 6001 [2020-12-22 14:21:10,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:10,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2020-12-22 14:21:11,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 5937. [2020-12-22 14:21:11,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5937 states. [2020-12-22 14:21:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5937 states to 5937 states and 8842 transitions. [2020-12-22 14:21:11,119 INFO L78 Accepts]: Start accepts. Automaton has 5937 states and 8842 transitions. Word has length 74 [2020-12-22 14:21:11,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:11,121 INFO L481 AbstractCegarLoop]: Abstraction has 5937 states and 8842 transitions. [2020-12-22 14:21:11,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:11,121 INFO L276 IsEmpty]: Start isEmpty. Operand 5937 states and 8842 transitions. [2020-12-22 14:21:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 14:21:11,123 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:11,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:11,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:21:11,124 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:11,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:11,125 INFO L82 PathProgramCache]: Analyzing trace with hash 472182075, now seen corresponding path program 1 times [2020-12-22 14:21:11,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:11,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275646549] [2020-12-22 14:21:11,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:11,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275646549] [2020-12-22 14:21:11,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:11,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:21:11,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51479825] [2020-12-22 14:21:11,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:11,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:11,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:11,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:11,385 INFO L87 Difference]: Start difference. First operand 5937 states and 8842 transitions. Second operand 3 states. [2020-12-22 14:21:11,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:11,948 INFO L93 Difference]: Finished difference Result 15721 states and 23656 transitions. [2020-12-22 14:21:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:11,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-22 14:21:11,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:12,010 INFO L225 Difference]: With dead ends: 15721 [2020-12-22 14:21:12,010 INFO L226 Difference]: Without dead ends: 9846 [2020-12-22 14:21:12,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9846 states. [2020-12-22 14:21:12,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9846 to 9618. [2020-12-22 14:21:12,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9618 states. [2020-12-22 14:21:12,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9618 states to 9618 states and 14632 transitions. [2020-12-22 14:21:12,349 INFO L78 Accepts]: Start accepts. Automaton has 9618 states and 14632 transitions. Word has length 78 [2020-12-22 14:21:12,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:12,350 INFO L481 AbstractCegarLoop]: Abstraction has 9618 states and 14632 transitions. [2020-12-22 14:21:12,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:12,350 INFO L276 IsEmpty]: Start isEmpty. Operand 9618 states and 14632 transitions. [2020-12-22 14:21:12,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 14:21:12,351 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:12,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:12,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 14:21:12,352 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:12,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:12,353 INFO L82 PathProgramCache]: Analyzing trace with hash -658626127, now seen corresponding path program 1 times [2020-12-22 14:21:12,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:12,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66931793] [2020-12-22 14:21:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:12,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:12,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66931793] [2020-12-22 14:21:12,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:12,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:21:12,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598463177] [2020-12-22 14:21:12,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:12,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:12,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:12,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:12,656 INFO L87 Difference]: Start difference. First operand 9618 states and 14632 transitions. Second operand 3 states. [2020-12-22 14:21:13,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:13,370 INFO L93 Difference]: Finished difference Result 28033 states and 42946 transitions. [2020-12-22 14:21:13,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:13,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-12-22 14:21:13,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:13,435 INFO L225 Difference]: With dead ends: 28033 [2020-12-22 14:21:13,435 INFO L226 Difference]: Without dead ends: 18476 [2020-12-22 14:21:13,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18476 states. [2020-12-22 14:21:14,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18476 to 18206. [2020-12-22 14:21:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18206 states. [2020-12-22 14:21:14,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18206 states to 18206 states and 27959 transitions. [2020-12-22 14:21:14,305 INFO L78 Accepts]: Start accepts. Automaton has 18206 states and 27959 transitions. Word has length 87 [2020-12-22 14:21:14,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:14,305 INFO L481 AbstractCegarLoop]: Abstraction has 18206 states and 27959 transitions. [2020-12-22 14:21:14,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 18206 states and 27959 transitions. [2020-12-22 14:21:14,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-22 14:21:14,307 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:14,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:14,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 14:21:14,308 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:14,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:14,308 INFO L82 PathProgramCache]: Analyzing trace with hash -268580366, now seen corresponding path program 1 times [2020-12-22 14:21:14,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:14,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989394508] [2020-12-22 14:21:14,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:14,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989394508] [2020-12-22 14:21:14,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:14,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:21:14,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103864078] [2020-12-22 14:21:14,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:14,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:14,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:14,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:14,566 INFO L87 Difference]: Start difference. First operand 18206 states and 27959 transitions. Second operand 3 states. [2020-12-22 14:21:15,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:15,098 INFO L93 Difference]: Finished difference Result 18206 states and 27959 transitions. [2020-12-22 14:21:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:15,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-12-22 14:21:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:15,144 INFO L225 Difference]: With dead ends: 18206 [2020-12-22 14:21:15,145 INFO L226 Difference]: Without dead ends: 18204 [2020-12-22 14:21:15,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:15,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18204 states. [2020-12-22 14:21:15,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18204 to 18204. [2020-12-22 14:21:15,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18204 states. [2020-12-22 14:21:15,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18204 states to 18204 states and 27956 transitions. [2020-12-22 14:21:15,744 INFO L78 Accepts]: Start accepts. Automaton has 18204 states and 27956 transitions. Word has length 89 [2020-12-22 14:21:15,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:15,744 INFO L481 AbstractCegarLoop]: Abstraction has 18204 states and 27956 transitions. [2020-12-22 14:21:15,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:15,745 INFO L276 IsEmpty]: Start isEmpty. Operand 18204 states and 27956 transitions. [2020-12-22 14:21:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 14:21:15,746 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:15,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:15,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 14:21:15,748 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:15,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:15,749 INFO L82 PathProgramCache]: Analyzing trace with hash 263959193, now seen corresponding path program 1 times [2020-12-22 14:21:15,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:15,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601376440] [2020-12-22 14:21:15,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:16,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601376440] [2020-12-22 14:21:16,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:16,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:21:16,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748278751] [2020-12-22 14:21:16,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:16,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:16,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:16,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:16,113 INFO L87 Difference]: Start difference. First operand 18204 states and 27956 transitions. Second operand 3 states. [2020-12-22 14:21:16,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:16,471 INFO L93 Difference]: Finished difference Result 18204 states and 27956 transitions. [2020-12-22 14:21:16,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:16,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 14:21:16,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:16,519 INFO L225 Difference]: With dead ends: 18204 [2020-12-22 14:21:16,519 INFO L226 Difference]: Without dead ends: 18202 [2020-12-22 14:21:16,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:16,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18202 states. [2020-12-22 14:21:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18202 to 18202. [2020-12-22 14:21:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18202 states. [2020-12-22 14:21:17,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18202 states to 18202 states and 27953 transitions. [2020-12-22 14:21:17,217 INFO L78 Accepts]: Start accepts. Automaton has 18202 states and 27953 transitions. Word has length 90 [2020-12-22 14:21:17,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:17,217 INFO L481 AbstractCegarLoop]: Abstraction has 18202 states and 27953 transitions. [2020-12-22 14:21:17,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:17,218 INFO L276 IsEmpty]: Start isEmpty. Operand 18202 states and 27953 transitions. [2020-12-22 14:21:17,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 14:21:17,218 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:17,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:17,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 14:21:17,219 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:17,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:17,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1363288266, now seen corresponding path program 1 times [2020-12-22 14:21:17,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:17,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774570609] [2020-12-22 14:21:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:17,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:17,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774570609] [2020-12-22 14:21:17,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:17,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:21:17,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914838558] [2020-12-22 14:21:17,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:17,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:17,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:17,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:17,435 INFO L87 Difference]: Start difference. First operand 18202 states and 27953 transitions. Second operand 3 states. [2020-12-22 14:21:20,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:20,240 INFO L93 Difference]: Finished difference Result 36274 states and 55769 transitions. [2020-12-22 14:21:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:20,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-12-22 14:21:20,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:20,289 INFO L225 Difference]: With dead ends: 36274 [2020-12-22 14:21:20,289 INFO L226 Difference]: Without dead ends: 18134 [2020-12-22 14:21:20,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:20,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18134 states. [2020-12-22 14:21:20,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18134 to 18060. [2020-12-22 14:21:20,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18060 states. [2020-12-22 14:21:21,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18060 states to 18060 states and 27716 transitions. [2020-12-22 14:21:21,047 INFO L78 Accepts]: Start accepts. Automaton has 18060 states and 27716 transitions. Word has length 91 [2020-12-22 14:21:21,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:21,048 INFO L481 AbstractCegarLoop]: Abstraction has 18060 states and 27716 transitions. [2020-12-22 14:21:21,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:21,048 INFO L276 IsEmpty]: Start isEmpty. Operand 18060 states and 27716 transitions. [2020-12-22 14:21:21,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 14:21:21,049 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:21,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:21,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 14:21:21,050 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:21,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:21,050 INFO L82 PathProgramCache]: Analyzing trace with hash -407183652, now seen corresponding path program 1 times [2020-12-22 14:21:21,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:21,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496132771] [2020-12-22 14:21:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:21,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496132771] [2020-12-22 14:21:21,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:21,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:21:21,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108389753] [2020-12-22 14:21:21,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:21,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:21,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:21,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:21,298 INFO L87 Difference]: Start difference. First operand 18060 states and 27716 transitions. Second operand 3 states. [2020-12-22 14:21:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:21,753 INFO L93 Difference]: Finished difference Result 18060 states and 27716 transitions. [2020-12-22 14:21:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:21,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-12-22 14:21:21,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:21,789 INFO L225 Difference]: With dead ends: 18060 [2020-12-22 14:21:21,789 INFO L226 Difference]: Without dead ends: 18027 [2020-12-22 14:21:21,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:21,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18027 states. [2020-12-22 14:21:22,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18027 to 18027. [2020-12-22 14:21:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18027 states. [2020-12-22 14:21:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18027 states to 18027 states and 27669 transitions. [2020-12-22 14:21:22,391 INFO L78 Accepts]: Start accepts. Automaton has 18027 states and 27669 transitions. Word has length 91 [2020-12-22 14:21:22,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:22,391 INFO L481 AbstractCegarLoop]: Abstraction has 18027 states and 27669 transitions. [2020-12-22 14:21:22,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:22,391 INFO L276 IsEmpty]: Start isEmpty. Operand 18027 states and 27669 transitions. [2020-12-22 14:21:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-22 14:21:22,393 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:22,393 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:22,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 14:21:22,394 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:22,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1882604641, now seen corresponding path program 1 times [2020-12-22 14:21:22,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:22,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417889415] [2020-12-22 14:21:22,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:22,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:22,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417889415] [2020-12-22 14:21:22,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:22,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:21:22,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521608669] [2020-12-22 14:21:22,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:22,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:22,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:22,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:22,707 INFO L87 Difference]: Start difference. First operand 18027 states and 27669 transitions. Second operand 3 states. [2020-12-22 14:21:25,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:25,288 INFO L93 Difference]: Finished difference Result 38106 states and 58231 transitions. [2020-12-22 14:21:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:25,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-12-22 14:21:25,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:25,334 INFO L225 Difference]: With dead ends: 38106 [2020-12-22 14:21:25,334 INFO L226 Difference]: Without dead ends: 20141 [2020-12-22 14:21:25,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:25,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20141 states. [2020-12-22 14:21:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20141 to 20063. [2020-12-22 14:21:26,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20063 states. [2020-12-22 14:21:26,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20063 states to 20063 states and 30497 transitions. [2020-12-22 14:21:26,250 INFO L78 Accepts]: Start accepts. Automaton has 20063 states and 30497 transitions. Word has length 105 [2020-12-22 14:21:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:26,251 INFO L481 AbstractCegarLoop]: Abstraction has 20063 states and 30497 transitions. [2020-12-22 14:21:26,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:26,251 INFO L276 IsEmpty]: Start isEmpty. Operand 20063 states and 30497 transitions. [2020-12-22 14:21:26,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 14:21:26,254 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:26,255 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:26,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 14:21:26,255 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:26,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:26,256 INFO L82 PathProgramCache]: Analyzing trace with hash -57225292, now seen corresponding path program 1 times [2020-12-22 14:21:26,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:26,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786165072] [2020-12-22 14:21:26,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 14:21:26,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786165072] [2020-12-22 14:21:26,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:26,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:21:26,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595518691] [2020-12-22 14:21:26,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:26,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:26,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:26,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:26,547 INFO L87 Difference]: Start difference. First operand 20063 states and 30497 transitions. Second operand 3 states. [2020-12-22 14:21:29,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:29,148 INFO L93 Difference]: Finished difference Result 42178 states and 63887 transitions. [2020-12-22 14:21:29,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:29,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-12-22 14:21:29,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:29,199 INFO L225 Difference]: With dead ends: 42178 [2020-12-22 14:21:29,199 INFO L226 Difference]: Without dead ends: 22177 [2020-12-22 14:21:29,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:29,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22177 states. [2020-12-22 14:21:29,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22177 to 22099. [2020-12-22 14:21:29,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22099 states. [2020-12-22 14:21:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22099 states to 22099 states and 33325 transitions. [2020-12-22 14:21:29,961 INFO L78 Accepts]: Start accepts. Automaton has 22099 states and 33325 transitions. Word has length 115 [2020-12-22 14:21:29,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:29,962 INFO L481 AbstractCegarLoop]: Abstraction has 22099 states and 33325 transitions. [2020-12-22 14:21:29,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:29,962 INFO L276 IsEmpty]: Start isEmpty. Operand 22099 states and 33325 transitions. [2020-12-22 14:21:29,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-22 14:21:29,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:29,966 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:29,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 14:21:29,967 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:29,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:29,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1050209459, now seen corresponding path program 1 times [2020-12-22 14:21:29,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:29,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190260010] [2020-12-22 14:21:29,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:30,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:30,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190260010] [2020-12-22 14:21:30,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:30,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 14:21:30,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049996333] [2020-12-22 14:21:30,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 14:21:30,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:30,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 14:21:30,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 14:21:30,233 INFO L87 Difference]: Start difference. First operand 22099 states and 33325 transitions. Second operand 4 states. [2020-12-22 14:21:31,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:31,557 INFO L93 Difference]: Finished difference Result 54505 states and 82421 transitions. [2020-12-22 14:21:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 14:21:31,558 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2020-12-22 14:21:31,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:31,624 INFO L225 Difference]: With dead ends: 54505 [2020-12-22 14:21:31,625 INFO L226 Difference]: Without dead ends: 32468 [2020-12-22 14:21:31,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:21:31,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32468 states. [2020-12-22 14:21:32,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32468 to 22019. [2020-12-22 14:21:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22019 states. [2020-12-22 14:21:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22019 states to 22019 states and 33234 transitions. [2020-12-22 14:21:32,671 INFO L78 Accepts]: Start accepts. Automaton has 22019 states and 33234 transitions. Word has length 121 [2020-12-22 14:21:32,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:32,672 INFO L481 AbstractCegarLoop]: Abstraction has 22019 states and 33234 transitions. [2020-12-22 14:21:32,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 14:21:32,672 INFO L276 IsEmpty]: Start isEmpty. Operand 22019 states and 33234 transitions. [2020-12-22 14:21:32,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-12-22 14:21:32,676 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:32,677 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:32,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 14:21:32,677 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:32,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:32,678 INFO L82 PathProgramCache]: Analyzing trace with hash -247642266, now seen corresponding path program 1 times [2020-12-22 14:21:32,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:32,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093034094] [2020-12-22 14:21:32,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:32,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:21:32,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093034094] [2020-12-22 14:21:32,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:32,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:21:32,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111340892] [2020-12-22 14:21:32,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:32,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:32,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:32,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:32,880 INFO L87 Difference]: Start difference. First operand 22019 states and 33234 transitions. Second operand 3 states. [2020-12-22 14:21:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:35,895 INFO L93 Difference]: Finished difference Result 52287 states and 79333 transitions. [2020-12-22 14:21:35,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:35,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-12-22 14:21:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:35,956 INFO L225 Difference]: With dead ends: 52287 [2020-12-22 14:21:35,956 INFO L226 Difference]: Without dead ends: 30330 [2020-12-22 14:21:35,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:36,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30330 states. [2020-12-22 14:21:36,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30330 to 30067. [2020-12-22 14:21:36,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30067 states. [2020-12-22 14:21:36,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30067 states to 30067 states and 45716 transitions. [2020-12-22 14:21:36,984 INFO L78 Accepts]: Start accepts. Automaton has 30067 states and 45716 transitions. Word has length 125 [2020-12-22 14:21:36,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:36,984 INFO L481 AbstractCegarLoop]: Abstraction has 30067 states and 45716 transitions. [2020-12-22 14:21:36,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 30067 states and 45716 transitions. [2020-12-22 14:21:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-22 14:21:36,991 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:36,991 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:36,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 14:21:36,992 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:36,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:36,993 INFO L82 PathProgramCache]: Analyzing trace with hash 89053511, now seen corresponding path program 1 times [2020-12-22 14:21:36,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:36,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227943169] [2020-12-22 14:21:36,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:37,408 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 14:21:37,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227943169] [2020-12-22 14:21:37,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:37,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:21:37,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086507802] [2020-12-22 14:21:37,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:37,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:37,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:37,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:37,411 INFO L87 Difference]: Start difference. First operand 30067 states and 45716 transitions. Second operand 3 states. [2020-12-22 14:21:39,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:39,100 INFO L93 Difference]: Finished difference Result 81844 states and 125240 transitions. [2020-12-22 14:21:39,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:39,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-12-22 14:21:39,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:39,201 INFO L225 Difference]: With dead ends: 81844 [2020-12-22 14:21:39,201 INFO L226 Difference]: Without dead ends: 51839 [2020-12-22 14:21:39,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:39,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51839 states. [2020-12-22 14:21:40,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51839 to 30019. [2020-12-22 14:21:40,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30019 states. [2020-12-22 14:21:40,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30019 states to 30019 states and 45620 transitions. [2020-12-22 14:21:40,575 INFO L78 Accepts]: Start accepts. Automaton has 30019 states and 45620 transitions. Word has length 131 [2020-12-22 14:21:40,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:40,575 INFO L481 AbstractCegarLoop]: Abstraction has 30019 states and 45620 transitions. [2020-12-22 14:21:40,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:40,576 INFO L276 IsEmpty]: Start isEmpty. Operand 30019 states and 45620 transitions. [2020-12-22 14:21:40,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-22 14:21:40,581 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:40,581 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:40,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 14:21:40,582 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:40,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:40,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1239398831, now seen corresponding path program 1 times [2020-12-22 14:21:40,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:40,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645916625] [2020-12-22 14:21:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:41,002 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 14:21:41,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645916625] [2020-12-22 14:21:41,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:21:41,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:21:41,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478863521] [2020-12-22 14:21:41,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:21:41,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:41,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:21:41,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:41,005 INFO L87 Difference]: Start difference. First operand 30019 states and 45620 transitions. Second operand 3 states. [2020-12-22 14:21:42,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:42,219 INFO L93 Difference]: Finished difference Result 60155 states and 91509 transitions. [2020-12-22 14:21:42,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:21:42,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-12-22 14:21:42,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:42,272 INFO L225 Difference]: With dead ends: 60155 [2020-12-22 14:21:42,272 INFO L226 Difference]: Without dead ends: 30172 [2020-12-22 14:21:42,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:21:42,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30172 states. [2020-12-22 14:21:43,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30172 to 30172. [2020-12-22 14:21:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30172 states. [2020-12-22 14:21:43,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30172 states to 30172 states and 45773 transitions. [2020-12-22 14:21:43,347 INFO L78 Accepts]: Start accepts. Automaton has 30172 states and 45773 transitions. Word has length 131 [2020-12-22 14:21:43,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:43,347 INFO L481 AbstractCegarLoop]: Abstraction has 30172 states and 45773 transitions. [2020-12-22 14:21:43,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:21:43,347 INFO L276 IsEmpty]: Start isEmpty. Operand 30172 states and 45773 transitions. [2020-12-22 14:21:43,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-12-22 14:21:43,352 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:43,352 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:43,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 14:21:43,353 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:43,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:43,353 INFO L82 PathProgramCache]: Analyzing trace with hash -343030441, now seen corresponding path program 1 times [2020-12-22 14:21:43,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:43,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055426286] [2020-12-22 14:21:43,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:43,675 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 14:21:43,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055426286] [2020-12-22 14:21:43,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209214279] [2020-12-22 14:21:43,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:21:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:45,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 2244 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-22 14:21:45,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:21:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 14:21:45,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 14:21:45,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-22 14:21:45,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104938971] [2020-12-22 14:21:45,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 14:21:45,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:21:45,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 14:21:45,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 14:21:45,926 INFO L87 Difference]: Start difference. First operand 30172 states and 45773 transitions. Second operand 6 states. [2020-12-22 14:21:47,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:21:47,953 INFO L93 Difference]: Finished difference Result 60460 states and 91814 transitions. [2020-12-22 14:21:47,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 14:21:47,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2020-12-22 14:21:47,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:21:48,039 INFO L225 Difference]: With dead ends: 60460 [2020-12-22 14:21:48,039 INFO L226 Difference]: Without dead ends: 30325 [2020-12-22 14:21:48,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 14:21:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30325 states. [2020-12-22 14:21:49,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30325 to 30325. [2020-12-22 14:21:49,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30325 states. [2020-12-22 14:21:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30325 states to 30325 states and 45926 transitions. [2020-12-22 14:21:49,495 INFO L78 Accepts]: Start accepts. Automaton has 30325 states and 45926 transitions. Word has length 140 [2020-12-22 14:21:49,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:21:49,496 INFO L481 AbstractCegarLoop]: Abstraction has 30325 states and 45926 transitions. [2020-12-22 14:21:49,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 14:21:49,496 INFO L276 IsEmpty]: Start isEmpty. Operand 30325 states and 45926 transitions. [2020-12-22 14:21:49,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-12-22 14:21:49,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:21:49,502 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:21:49,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-22 14:21:49,718 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:21:49,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:21:49,720 INFO L82 PathProgramCache]: Analyzing trace with hash -611949807, now seen corresponding path program 2 times [2020-12-22 14:21:49,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:21:49,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284419535] [2020-12-22 14:21:49,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:21:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:21:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-22 14:21:50,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284419535] [2020-12-22 14:21:50,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480310445] [2020-12-22 14:21:50,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:21:59,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 14:21:59,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 14:21:59,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 82 conjunts are in the unsatisfiable core [2020-12-22 14:21:59,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:22:00,300 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 14:22:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-12-22 14:22:00,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:22:00,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2020-12-22 14:22:00,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452169822] [2020-12-22 14:22:00,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 14:22:00,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:22:00,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 14:22:00,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-12-22 14:22:00,413 INFO L87 Difference]: Start difference. First operand 30325 states and 45926 transitions. Second operand 10 states. [2020-12-22 14:22:10,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:22:10,103 INFO L93 Difference]: Finished difference Result 241230 states and 368037 transitions. [2020-12-22 14:22:10,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-22 14:22:10,104 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-12-22 14:22:10,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:22:10,753 INFO L225 Difference]: With dead ends: 241230 [2020-12-22 14:22:10,753 INFO L226 Difference]: Without dead ends: 210985 [2020-12-22 14:22:10,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=364, Invalid=1196, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 14:22:11,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210985 states. [2020-12-22 14:22:14,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210985 to 30421. [2020-12-22 14:22:14,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30421 states. [2020-12-22 14:22:14,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30421 states to 30421 states and 46022 transitions. [2020-12-22 14:22:14,894 INFO L78 Accepts]: Start accepts. Automaton has 30421 states and 46022 transitions. Word has length 149 [2020-12-22 14:22:14,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:22:14,895 INFO L481 AbstractCegarLoop]: Abstraction has 30421 states and 46022 transitions. [2020-12-22 14:22:14,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 14:22:14,895 INFO L276 IsEmpty]: Start isEmpty. Operand 30421 states and 46022 transitions. [2020-12-22 14:22:14,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-12-22 14:22:14,901 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:22:14,902 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:22:15,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-22 14:22:15,118 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:22:15,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:22:15,119 INFO L82 PathProgramCache]: Analyzing trace with hash 631669536, now seen corresponding path program 1 times [2020-12-22 14:22:15,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:22:15,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233128281] [2020-12-22 14:22:15,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:22:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:22:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-12-22 14:22:15,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233128281] [2020-12-22 14:22:15,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227403336] [2020-12-22 14:22:15,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:22:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:22:20,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 2320 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-22 14:22:20,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:22:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-12-22 14:22:20,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 14:22:20,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-22 14:22:20,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424400698] [2020-12-22 14:22:20,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 14:22:20,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:22:20,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 14:22:20,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:22:20,763 INFO L87 Difference]: Start difference. First operand 30421 states and 46022 transitions. Second operand 8 states. [2020-12-22 14:22:23,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:22:23,259 INFO L93 Difference]: Finished difference Result 60957 states and 92311 transitions. [2020-12-22 14:22:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 14:22:23,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-12-22 14:22:23,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:22:23,293 INFO L225 Difference]: With dead ends: 60957 [2020-12-22 14:22:23,293 INFO L226 Difference]: Without dead ends: 30574 [2020-12-22 14:22:23,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-22 14:22:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30574 states. [2020-12-22 14:22:25,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30574 to 30574. [2020-12-22 14:22:25,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30574 states. [2020-12-22 14:22:25,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30574 states to 30574 states and 46175 transitions. [2020-12-22 14:22:25,124 INFO L78 Accepts]: Start accepts. Automaton has 30574 states and 46175 transitions. Word has length 155 [2020-12-22 14:22:25,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:22:25,125 INFO L481 AbstractCegarLoop]: Abstraction has 30574 states and 46175 transitions. [2020-12-22 14:22:25,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 14:22:25,125 INFO L276 IsEmpty]: Start isEmpty. Operand 30574 states and 46175 transitions. [2020-12-22 14:22:25,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-12-22 14:22:25,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:22:25,131 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:22:25,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-22 14:22:25,347 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:22:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:22:25,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1414978086, now seen corresponding path program 2 times [2020-12-22 14:22:25,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:22:25,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576979335] [2020-12-22 14:22:25,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:22:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:22:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-22 14:22:25,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576979335] [2020-12-22 14:22:25,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935722545] [2020-12-22 14:22:25,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:22:41,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 14:22:41,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 14:22:41,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 2374 conjuncts, 38 conjunts are in the unsatisfiable core [2020-12-22 14:22:41,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:22:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-22 14:22:41,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 14:22:41,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-12-22 14:22:41,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025148000] [2020-12-22 14:22:41,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 14:22:41,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:22:41,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 14:22:41,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-22 14:22:41,462 INFO L87 Difference]: Start difference. First operand 30574 states and 46175 transitions. Second operand 10 states. [2020-12-22 14:22:44,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:22:44,197 INFO L93 Difference]: Finished difference Result 61262 states and 92616 transitions. [2020-12-22 14:22:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 14:22:44,199 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-12-22 14:22:44,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:22:44,243 INFO L225 Difference]: With dead ends: 61262 [2020-12-22 14:22:44,243 INFO L226 Difference]: Without dead ends: 30727 [2020-12-22 14:22:44,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-12-22 14:22:44,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30727 states. [2020-12-22 14:22:46,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30727 to 30727. [2020-12-22 14:22:46,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30727 states. [2020-12-22 14:22:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30727 states to 30727 states and 46328 transitions. [2020-12-22 14:22:46,230 INFO L78 Accepts]: Start accepts. Automaton has 30727 states and 46328 transitions. Word has length 164 [2020-12-22 14:22:46,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:22:46,231 INFO L481 AbstractCegarLoop]: Abstraction has 30727 states and 46328 transitions. [2020-12-22 14:22:46,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 14:22:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 30727 states and 46328 transitions. [2020-12-22 14:22:46,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-12-22 14:22:46,236 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:22:46,236 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:22:46,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:22:46,438 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:22:46,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:22:46,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1812308000, now seen corresponding path program 3 times [2020-12-22 14:22:46,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:22:46,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443026276] [2020-12-22 14:22:46,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:22:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:22:46,938 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-22 14:22:46,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443026276] [2020-12-22 14:22:46,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449389794] [2020-12-22 14:22:46,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:23:01,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 14:23:01,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 14:23:01,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 2049 conjuncts, 89 conjunts are in the unsatisfiable core [2020-12-22 14:23:01,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:23:01,932 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 14:23:02,034 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:02,254 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:02,627 INFO L757 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:02,902 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-22 14:23:02,962 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:03,097 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:03,489 INFO L757 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:03,797 INFO L757 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:04,380 INFO L757 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:05,169 INFO L757 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:06,266 INFO L757 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:06,830 INFO L757 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 14:23:07,852 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 14:23:08,458 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 29 [2020-12-22 14:23:09,568 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 26 [2020-12-22 14:23:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-12-22 14:23:09,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:23:09,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [7] total 22 [2020-12-22 14:23:09,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886684800] [2020-12-22 14:23:09,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-22 14:23:09,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:23:09,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-22 14:23:09,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2020-12-22 14:23:09,784 INFO L87 Difference]: Start difference. First operand 30727 states and 46328 transitions. Second operand 17 states. [2020-12-22 14:23:13,835 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-22 14:23:14,055 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-22 14:23:14,558 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 14:23:15,668 WARN L197 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-12-22 14:23:16,380 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 14:23:16,698 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-22 14:23:17,187 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-22 14:23:18,275 WARN L197 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-22 14:23:19,306 WARN L197 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-22 14:23:19,610 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-22 14:23:19,971 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-22 14:23:21,022 WARN L197 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-12-22 14:23:21,327 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-22 14:23:22,449 WARN L197 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-12-22 14:23:22,820 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-22 14:23:24,025 WARN L197 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 14:23:24,466 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-22 14:23:25,709 WARN L197 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-12-22 14:23:26,065 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-12-22 14:23:26,319 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-22 14:23:27,453 WARN L197 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-12-22 14:23:28,751 WARN L197 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-22 14:23:29,856 WARN L197 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-22 14:23:30,282 WARN L197 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-22 14:23:30,873 WARN L197 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-22 14:23:32,078 WARN L197 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-12-22 14:23:32,548 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-22 14:23:33,897 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 118 [2020-12-22 14:23:34,946 WARN L197 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-12-22 14:23:35,443 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 14:23:35,758 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 14:23:36,230 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-22 14:23:37,683 WARN L197 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-22 14:23:38,022 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-12-22 14:23:38,850 WARN L197 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-12-22 14:23:39,407 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-22 14:23:40,742 WARN L197 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 14:23:41,134 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-22 14:23:41,693 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-22 14:23:42,191 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-12-22 14:23:43,342 WARN L197 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 14:23:43,814 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-12-22 14:23:44,277 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-22 14:23:45,155 WARN L197 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-12-22 14:23:46,390 WARN L197 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-22 14:23:47,185 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-22 14:23:48,521 WARN L197 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-22 14:23:48,738 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-22 14:23:49,669 WARN L197 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-22 14:23:50,567 WARN L197 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-22 14:23:51,720 WARN L197 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-22 14:23:51,985 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-22 14:23:52,593 WARN L197 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-22 14:23:53,777 WARN L197 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-12-22 14:23:53,990 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-22 14:23:54,737 WARN L197 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-22 14:23:55,537 WARN L197 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-22 14:23:56,221 WARN L197 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-22 14:23:57,045 WARN L197 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-22 14:23:57,345 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-22 14:23:57,808 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-22 14:23:58,705 WARN L197 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-12-22 14:23:59,006 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-22 14:23:59,565 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-22 14:24:00,396 WARN L197 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-12-22 14:24:00,729 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-22 14:24:02,075 WARN L197 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-22 14:24:02,990 WARN L197 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 14:24:03,985 WARN L197 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-22 14:24:04,212 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-22 14:24:04,599 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-22 14:24:05,026 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-22 14:24:06,049 WARN L197 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-22 14:24:06,342 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-22 14:24:07,473 WARN L197 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-22 14:24:08,099 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-12-22 14:24:09,396 WARN L197 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-22 14:24:10,809 WARN L197 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-22 14:24:11,287 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-22 14:24:12,540 WARN L197 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-22 14:24:13,047 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-22 14:24:14,110 WARN L197 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-22 14:24:14,808 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-22 14:24:15,335 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-22 14:24:17,379 WARN L197 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-22 14:24:18,456 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-22 14:24:20,745 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-22 14:24:21,182 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-22 14:24:21,629 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-22 14:24:22,255 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 77