/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--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:43:43,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:43:43,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:43:43,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:43:43,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:43:43,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:43:43,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:43:43,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:43:43,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:43:43,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:43:43,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:43:43,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:43:43,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:43:43,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:43:43,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:43:43,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:43:43,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:43:43,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:43:43,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:43:43,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:43:43,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:43:43,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:43:43,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:43:43,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:43:43,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:43:43,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:43:43,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:43:43,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:43:43,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:43:43,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:43:43,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:43:43,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:43:43,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:43:43,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:43:43,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:43:43,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:43:43,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:43:43,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:43:43,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:43:43,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:43:43,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:43:43,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:43:43,388 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:43:43,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:43:43,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:43:43,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:43:43,390 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:43:43,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:43:43,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:43:43,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:43:43,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:43:43,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:43:43,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:43:43,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:43:43,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:43:43,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:43:43,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:43:43,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:43:43,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:43:43,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:43:43,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:43:43,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:43:43,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:43:43,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:43:43,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:43:43,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:43:43,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:43:43,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:43:43,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:43:43,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:43:43,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:43:43,882 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:43:43,883 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:43:43,884 INFO L432 ainManager$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--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2020-12-22 14:43:43,966 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3cdc6c8/7ba68dca19e14bc7844ec50ede5796d7/FLAGee04cd6a8 [2020-12-22 14:43:45,194 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:43:45,195 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--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2020-12-22 14:43:45,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3cdc6c8/7ba68dca19e14bc7844ec50ede5796d7/FLAGee04cd6a8 [2020-12-22 14:43:45,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c3cdc6c8/7ba68dca19e14bc7844ec50ede5796d7 [2020-12-22 14:43:45,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:43:45,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:43:45,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:43:45,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:43:45,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:43:45,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:43:45" (1/1) ... [2020-12-22 14:43:45,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64595dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:45, skipping insertion in model container [2020-12-22 14:43:45,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:43:45" (1/1) ... [2020-12-22 14:43:45,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:43:45,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:43:47,262 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--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[235755,235768] [2020-12-22 14:43:47,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:43:47,577 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:43:48,031 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--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[235755,235768] [2020-12-22 14:43:48,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:43:48,363 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:43:48,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48 WrapperNode [2020-12-22 14:43:48,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:43:48,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:43:48,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:43:48,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:43:48,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (1/1) ... [2020-12-22 14:43:48,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (1/1) ... [2020-12-22 14:43:49,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:43:49,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:43:49,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:43:49,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:43:49,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (1/1) ... [2020-12-22 14:43:49,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (1/1) ... [2020-12-22 14:43:49,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (1/1) ... [2020-12-22 14:43:49,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (1/1) ... [2020-12-22 14:43:50,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (1/1) ... [2020-12-22 14:43:50,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (1/1) ... [2020-12-22 14:43:50,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (1/1) ... [2020-12-22 14:43:51,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:43:51,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:43:51,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:43:51,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:43:51,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (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 14:43:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:43:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:43:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:43:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:43:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:43:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:43:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:43:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:43:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:43:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:43:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:43:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:43:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:43:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:43:51,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:44:32,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:44:32,634 INFO L299 CfgBuilder]: Removed 5131 assume(true) statements. [2020-12-22 14:44:32,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:44:32 BoogieIcfgContainer [2020-12-22 14:44:32,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:44:32,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:44:32,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:44:32,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:44:32,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:43:45" (1/3) ... [2020-12-22 14:44:32,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362949be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:44:32, skipping insertion in model container [2020-12-22 14:44:32,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:43:48" (2/3) ... [2020-12-22 14:44:32,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362949be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:44:32, skipping insertion in model container [2020-12-22 14:44:32,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:44:32" (3/3) ... [2020-12-22 14:44:32,654 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2020-12-22 14:44:32,661 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:44:32,669 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-22 14:44:32,692 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-22 14:44:32,738 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:44:32,738 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:44:32,739 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:44:32,739 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:44:32,739 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:44:32,739 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:44:32,739 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:44:32,739 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:44:32,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4852 states. [2020-12-22 14:44:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 14:44:32,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:32,834 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 14:44:32,835 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:32,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:32,841 INFO L82 PathProgramCache]: Analyzing trace with hash 220167062, now seen corresponding path program 1 times [2020-12-22 14:44:32,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:32,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370192273] [2020-12-22 14:44:32,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:33,931 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 14:44:33,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370192273] [2020-12-22 14:44:33,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:33,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:44:33,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989216526] [2020-12-22 14:44:33,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:44:33,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:33,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:44:33,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:44:33,964 INFO L87 Difference]: Start difference. First operand 4852 states. Second operand 2 states. [2020-12-22 14:44:34,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:44:34,242 INFO L93 Difference]: Finished difference Result 9700 states and 13409 transitions. [2020-12-22 14:44:34,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:44:34,244 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 78 [2020-12-22 14:44:34,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:44:34,299 INFO L225 Difference]: With dead ends: 9700 [2020-12-22 14:44:34,299 INFO L226 Difference]: Without dead ends: 4844 [2020-12-22 14:44:34,318 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 14:44:34,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2020-12-22 14:44:34,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4844. [2020-12-22 14:44:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4844 states. [2020-12-22 14:44:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 6591 transitions. [2020-12-22 14:44:34,546 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 6591 transitions. Word has length 78 [2020-12-22 14:44:34,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:44:34,546 INFO L481 AbstractCegarLoop]: Abstraction has 4844 states and 6591 transitions. [2020-12-22 14:44:34,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:44:34,547 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 6591 transitions. [2020-12-22 14:44:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 14:44:34,550 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:34,550 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 14:44:34,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:44:34,551 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:34,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:34,552 INFO L82 PathProgramCache]: Analyzing trace with hash -85929696, now seen corresponding path program 1 times [2020-12-22 14:44:34,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:34,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272240518] [2020-12-22 14:44:34,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:35,221 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 14:44:35,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272240518] [2020-12-22 14:44:35,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:35,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:44:35,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77428739] [2020-12-22 14:44:35,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:44:35,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:35,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:44:35,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:44:35,225 INFO L87 Difference]: Start difference. First operand 4844 states and 6591 transitions. Second operand 3 states. [2020-12-22 14:44:37,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:44:37,825 INFO L93 Difference]: Finished difference Result 14344 states and 19556 transitions. [2020-12-22 14:44:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:44:37,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-22 14:44:37,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:44:37,879 INFO L225 Difference]: With dead ends: 14344 [2020-12-22 14:44:37,879 INFO L226 Difference]: Without dead ends: 9569 [2020-12-22 14:44:37,895 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 14:44:37,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2020-12-22 14:44:38,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 9553. [2020-12-22 14:44:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9553 states. [2020-12-22 14:44:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9553 states to 9553 states and 13037 transitions. [2020-12-22 14:44:38,207 INFO L78 Accepts]: Start accepts. Automaton has 9553 states and 13037 transitions. Word has length 78 [2020-12-22 14:44:38,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:44:38,209 INFO L481 AbstractCegarLoop]: Abstraction has 9553 states and 13037 transitions. [2020-12-22 14:44:38,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:44:38,210 INFO L276 IsEmpty]: Start isEmpty. Operand 9553 states and 13037 transitions. [2020-12-22 14:44:38,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 14:44:38,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:38,220 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] [2020-12-22 14:44:38,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:44:38,221 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:38,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:38,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1639358138, now seen corresponding path program 1 times [2020-12-22 14:44:38,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:38,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802805306] [2020-12-22 14:44:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:38,913 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 14:44:38,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802805306] [2020-12-22 14:44:38,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:38,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:44:38,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515128450] [2020-12-22 14:44:38,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:44:38,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:38,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:44:38,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:44:38,926 INFO L87 Difference]: Start difference. First operand 9553 states and 13037 transitions. Second operand 3 states. [2020-12-22 14:44:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:44:39,150 INFO L93 Difference]: Finished difference Result 9553 states and 13037 transitions. [2020-12-22 14:44:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:44:39,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-12-22 14:44:39,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:44:39,215 INFO L225 Difference]: With dead ends: 9553 [2020-12-22 14:44:39,215 INFO L226 Difference]: Without dead ends: 9551 [2020-12-22 14:44:39,222 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 14:44:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9551 states. [2020-12-22 14:44:39,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9551 to 9551. [2020-12-22 14:44:39,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9551 states. [2020-12-22 14:44:39,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9551 states to 9551 states and 13035 transitions. [2020-12-22 14:44:39,553 INFO L78 Accepts]: Start accepts. Automaton has 9551 states and 13035 transitions. Word has length 81 [2020-12-22 14:44:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:44:39,557 INFO L481 AbstractCegarLoop]: Abstraction has 9551 states and 13035 transitions. [2020-12-22 14:44:39,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:44:39,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9551 states and 13035 transitions. [2020-12-22 14:44:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 14:44:39,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:39,562 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] [2020-12-22 14:44:39,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:44:39,563 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:39,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:39,564 INFO L82 PathProgramCache]: Analyzing trace with hash -719483101, now seen corresponding path program 1 times [2020-12-22 14:44:39,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:39,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856325060] [2020-12-22 14:44:39,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:40,192 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 14:44:40,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856325060] [2020-12-22 14:44:40,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:40,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:44:40,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387324463] [2020-12-22 14:44:40,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:44:40,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:40,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:44:40,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:44:40,197 INFO L87 Difference]: Start difference. First operand 9551 states and 13035 transitions. Second operand 3 states. [2020-12-22 14:44:40,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:44:40,725 INFO L93 Difference]: Finished difference Result 9551 states and 13035 transitions. [2020-12-22 14:44:40,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:44:40,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-12-22 14:44:40,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:44:40,785 INFO L225 Difference]: With dead ends: 9551 [2020-12-22 14:44:40,786 INFO L226 Difference]: Without dead ends: 9549 [2020-12-22 14:44:40,790 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 14:44:40,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9549 states. [2020-12-22 14:44:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9549 to 9549. [2020-12-22 14:44:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9549 states. [2020-12-22 14:44:41,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9549 states to 9549 states and 13033 transitions. [2020-12-22 14:44:41,128 INFO L78 Accepts]: Start accepts. Automaton has 9549 states and 13033 transitions. Word has length 82 [2020-12-22 14:44:41,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:44:41,129 INFO L481 AbstractCegarLoop]: Abstraction has 9549 states and 13033 transitions. [2020-12-22 14:44:41,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:44:41,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9549 states and 13033 transitions. [2020-12-22 14:44:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 14:44:41,131 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:41,131 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] [2020-12-22 14:44:41,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 14:44:41,132 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:41,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:41,132 INFO L82 PathProgramCache]: Analyzing trace with hash -829117468, now seen corresponding path program 1 times [2020-12-22 14:44:41,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:41,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807675984] [2020-12-22 14:44:41,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:41,684 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 14:44:41,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807675984] [2020-12-22 14:44:41,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:41,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:44:41,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699218708] [2020-12-22 14:44:41,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:44:41,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:41,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:44:41,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:44:41,690 INFO L87 Difference]: Start difference. First operand 9549 states and 13033 transitions. Second operand 3 states. [2020-12-22 14:44:42,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:44:42,171 INFO L93 Difference]: Finished difference Result 9549 states and 13033 transitions. [2020-12-22 14:44:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:44:42,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-12-22 14:44:42,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:44:42,199 INFO L225 Difference]: With dead ends: 9549 [2020-12-22 14:44:42,199 INFO L226 Difference]: Without dead ends: 9547 [2020-12-22 14:44:42,204 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 14:44:42,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9547 states. [2020-12-22 14:44:42,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 9547. [2020-12-22 14:44:42,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9547 states. [2020-12-22 14:44:42,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9547 states to 9547 states and 13031 transitions. [2020-12-22 14:44:42,554 INFO L78 Accepts]: Start accepts. Automaton has 9547 states and 13031 transitions. Word has length 83 [2020-12-22 14:44:42,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:44:42,556 INFO L481 AbstractCegarLoop]: Abstraction has 9547 states and 13031 transitions. [2020-12-22 14:44:42,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:44:42,556 INFO L276 IsEmpty]: Start isEmpty. Operand 9547 states and 13031 transitions. [2020-12-22 14:44:42,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 14:44:42,564 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:42,564 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] [2020-12-22 14:44:42,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 14:44:42,565 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:42,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:42,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1262037419, now seen corresponding path program 1 times [2020-12-22 14:44:42,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:42,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014478188] [2020-12-22 14:44:42,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:43,090 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 14:44:43,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014478188] [2020-12-22 14:44:43,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:43,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:44:43,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271380391] [2020-12-22 14:44:43,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:44:43,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:43,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:44:43,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:44:43,093 INFO L87 Difference]: Start difference. First operand 9547 states and 13031 transitions. Second operand 3 states. [2020-12-22 14:44:44,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:44:44,320 INFO L93 Difference]: Finished difference Result 23785 states and 32483 transitions. [2020-12-22 14:44:44,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:44:44,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-12-22 14:44:44,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:44:44,361 INFO L225 Difference]: With dead ends: 23785 [2020-12-22 14:44:44,361 INFO L226 Difference]: Without dead ends: 14307 [2020-12-22 14:44:44,383 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 14:44:44,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14307 states. [2020-12-22 14:44:44,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14307 to 14275. [2020-12-22 14:44:44,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14275 states. [2020-12-22 14:44:44,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14275 states to 14275 states and 19506 transitions. [2020-12-22 14:44:44,947 INFO L78 Accepts]: Start accepts. Automaton has 14275 states and 19506 transitions. Word has length 83 [2020-12-22 14:44:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:44:44,947 INFO L481 AbstractCegarLoop]: Abstraction has 14275 states and 19506 transitions. [2020-12-22 14:44:44,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:44:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 14275 states and 19506 transitions. [2020-12-22 14:44:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 14:44:44,951 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:44,951 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] [2020-12-22 14:44:44,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 14:44:44,951 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:44,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:44,952 INFO L82 PathProgramCache]: Analyzing trace with hash 67184461, now seen corresponding path program 1 times [2020-12-22 14:44:44,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:44,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322363370] [2020-12-22 14:44:44,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:45,465 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 14:44:45,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322363370] [2020-12-22 14:44:45,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:45,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:44:45,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909839372] [2020-12-22 14:44:45,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:44:45,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:45,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:44:45,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:44:45,467 INFO L87 Difference]: Start difference. First operand 14275 states and 19506 transitions. Second operand 3 states. [2020-12-22 14:44:46,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:44:46,417 INFO L93 Difference]: Finished difference Result 42593 states and 58245 transitions. [2020-12-22 14:44:46,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:44:46,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-12-22 14:44:46,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:44:46,492 INFO L225 Difference]: With dead ends: 42593 [2020-12-22 14:44:46,493 INFO L226 Difference]: Without dead ends: 28382 [2020-12-22 14:44:46,528 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 14:44:46,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28382 states. [2020-12-22 14:44:47,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28382 to 27190. [2020-12-22 14:44:47,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27190 states. [2020-12-22 14:44:47,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27190 states to 27190 states and 37173 transitions. [2020-12-22 14:44:47,492 INFO L78 Accepts]: Start accepts. Automaton has 27190 states and 37173 transitions. Word has length 84 [2020-12-22 14:44:47,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:44:47,492 INFO L481 AbstractCegarLoop]: Abstraction has 27190 states and 37173 transitions. [2020-12-22 14:44:47,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:44:47,492 INFO L276 IsEmpty]: Start isEmpty. Operand 27190 states and 37173 transitions. [2020-12-22 14:44:47,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 14:44:47,496 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:47,496 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:44:47,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 14:44:47,496 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:47,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:47,497 INFO L82 PathProgramCache]: Analyzing trace with hash -732568724, now seen corresponding path program 1 times [2020-12-22 14:44:47,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:47,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079434948] [2020-12-22 14:44:47,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:48,083 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 14:44:48,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079434948] [2020-12-22 14:44:48,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:48,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:44:48,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553188596] [2020-12-22 14:44:48,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:44:48,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:48,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:44:48,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:44:48,086 INFO L87 Difference]: Start difference. First operand 27190 states and 37173 transitions. Second operand 3 states. [2020-12-22 14:44:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:44:50,226 INFO L93 Difference]: Finished difference Result 63526 states and 86880 transitions. [2020-12-22 14:44:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:44:50,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-12-22 14:44:50,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:44:50,331 INFO L225 Difference]: With dead ends: 63526 [2020-12-22 14:44:50,332 INFO L226 Difference]: Without dead ends: 36405 [2020-12-22 14:44:50,392 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 14:44:50,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36405 states. [2020-12-22 14:44:51,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36405 to 36094. [2020-12-22 14:44:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36094 states. [2020-12-22 14:44:51,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36094 states to 36094 states and 49369 transitions. [2020-12-22 14:44:51,903 INFO L78 Accepts]: Start accepts. Automaton has 36094 states and 49369 transitions. Word has length 98 [2020-12-22 14:44:51,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:44:51,904 INFO L481 AbstractCegarLoop]: Abstraction has 36094 states and 49369 transitions. [2020-12-22 14:44:51,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:44:51,904 INFO L276 IsEmpty]: Start isEmpty. Operand 36094 states and 49369 transitions. [2020-12-22 14:44:51,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-12-22 14:44:51,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:51,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:44:51,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 14:44:51,914 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:51,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:51,915 INFO L82 PathProgramCache]: Analyzing trace with hash -2111926385, now seen corresponding path program 1 times [2020-12-22 14:44:51,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:51,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904926148] [2020-12-22 14:44:51,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:52,437 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 14:44:52,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904926148] [2020-12-22 14:44:52,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:52,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:44:52,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998981718] [2020-12-22 14:44:52,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:44:52,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:52,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:44:52,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:44:52,440 INFO L87 Difference]: Start difference. First operand 36094 states and 49369 transitions. Second operand 3 states. [2020-12-22 14:44:56,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:44:56,724 INFO L93 Difference]: Finished difference Result 82160 states and 112874 transitions. [2020-12-22 14:44:56,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:44:56,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-12-22 14:44:56,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:44:56,866 INFO L225 Difference]: With dead ends: 82160 [2020-12-22 14:44:56,866 INFO L226 Difference]: Without dead ends: 46135 [2020-12-22 14:44:56,917 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 14:44:57,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46135 states. [2020-12-22 14:44:58,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46135 to 45790. [2020-12-22 14:44:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45790 states. [2020-12-22 14:44:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45790 states to 45790 states and 62549 transitions. [2020-12-22 14:44:58,839 INFO L78 Accepts]: Start accepts. Automaton has 45790 states and 62549 transitions. Word has length 140 [2020-12-22 14:44:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:44:58,840 INFO L481 AbstractCegarLoop]: Abstraction has 45790 states and 62549 transitions. [2020-12-22 14:44:58,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:44:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 45790 states and 62549 transitions. [2020-12-22 14:44:58,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-12-22 14:44:58,846 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:44:58,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:44:58,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 14:44:58,847 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:44:58,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:44:58,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1351231267, now seen corresponding path program 1 times [2020-12-22 14:44:58,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:44:58,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157772275] [2020-12-22 14:44:58,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:44:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:44:59,368 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 14:44:59,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157772275] [2020-12-22 14:44:59,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:44:59,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:44:59,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105024547] [2020-12-22 14:44:59,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:44:59,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:44:59,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:44:59,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:44:59,375 INFO L87 Difference]: Start difference. First operand 45790 states and 62549 transitions. Second operand 3 states. [2020-12-22 14:45:04,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:04,247 INFO L93 Difference]: Finished difference Result 102378 states and 140576 transitions. [2020-12-22 14:45:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:45:04,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-12-22 14:45:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:45:04,368 INFO L225 Difference]: With dead ends: 102378 [2020-12-22 14:45:04,368 INFO L226 Difference]: Without dead ends: 56657 [2020-12-22 14:45:04,458 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 14:45:04,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56657 states. [2020-12-22 14:45:06,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56657 to 56346. [2020-12-22 14:45:06,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56346 states. [2020-12-22 14:45:06,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56346 states to 56346 states and 76809 transitions. [2020-12-22 14:45:06,233 INFO L78 Accepts]: Start accepts. Automaton has 56346 states and 76809 transitions. Word has length 142 [2020-12-22 14:45:06,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:45:06,234 INFO L481 AbstractCegarLoop]: Abstraction has 56346 states and 76809 transitions. [2020-12-22 14:45:06,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:45:06,234 INFO L276 IsEmpty]: Start isEmpty. Operand 56346 states and 76809 transitions. [2020-12-22 14:45:06,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-12-22 14:45:06,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:06,248 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:06,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 14:45:06,249 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:06,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:06,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1649728965, now seen corresponding path program 1 times [2020-12-22 14:45:06,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:06,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111851117] [2020-12-22 14:45:06,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:45:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:06,952 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 14:45:06,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111851117] [2020-12-22 14:45:06,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:45:06,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:45:06,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340203830] [2020-12-22 14:45:06,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:45:06,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:45:06,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:45:06,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:45:06,954 INFO L87 Difference]: Start difference. First operand 56346 states and 76809 transitions. Second operand 3 states. [2020-12-22 14:45:11,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:11,862 INFO L93 Difference]: Finished difference Result 123524 states and 169130 transitions. [2020-12-22 14:45:11,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:45:11,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-12-22 14:45:11,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:45:12,009 INFO L225 Difference]: With dead ends: 123524 [2020-12-22 14:45:12,009 INFO L226 Difference]: Without dead ends: 67247 [2020-12-22 14:45:12,072 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 14:45:12,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67247 states. [2020-12-22 14:45:14,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67247 to 66902. [2020-12-22 14:45:14,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66902 states. [2020-12-22 14:45:14,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66902 states to 66902 states and 91069 transitions. [2020-12-22 14:45:14,119 INFO L78 Accepts]: Start accepts. Automaton has 66902 states and 91069 transitions. Word has length 169 [2020-12-22 14:45:14,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:45:14,119 INFO L481 AbstractCegarLoop]: Abstraction has 66902 states and 91069 transitions. [2020-12-22 14:45:14,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:45:14,119 INFO L276 IsEmpty]: Start isEmpty. Operand 66902 states and 91069 transitions. [2020-12-22 14:45:14,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-12-22 14:45:14,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:14,130 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 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 14:45:14,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 14:45:14,131 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:14,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:14,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1754777590, now seen corresponding path program 1 times [2020-12-22 14:45:14,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:14,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272304532] [2020-12-22 14:45:14,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:45:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:14,833 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 14:45:14,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272304532] [2020-12-22 14:45:14,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:45:14,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:45:14,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923454610] [2020-12-22 14:45:14,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:45:14,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:45:14,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:45:14,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:45:14,837 INFO L87 Difference]: Start difference. First operand 66902 states and 91069 transitions. Second operand 3 states. [2020-12-22 14:45:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:19,962 INFO L93 Difference]: Finished difference Result 145462 states and 198992 transitions. [2020-12-22 14:45:19,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:45:19,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-12-22 14:45:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:45:20,104 INFO L225 Difference]: With dead ends: 145462 [2020-12-22 14:45:20,104 INFO L226 Difference]: Without dead ends: 78629 [2020-12-22 14:45:20,221 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 14:45:20,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78629 states. [2020-12-22 14:45:22,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78629 to 78318. [2020-12-22 14:45:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78318 states. [2020-12-22 14:45:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78318 states to 78318 states and 106409 transitions. [2020-12-22 14:45:22,862 INFO L78 Accepts]: Start accepts. Automaton has 78318 states and 106409 transitions. Word has length 173 [2020-12-22 14:45:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:45:22,862 INFO L481 AbstractCegarLoop]: Abstraction has 78318 states and 106409 transitions. [2020-12-22 14:45:22,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:45:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 78318 states and 106409 transitions. [2020-12-22 14:45:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-12-22 14:45:22,892 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:22,893 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:22,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 14:45:22,893 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:22,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:22,894 INFO L82 PathProgramCache]: Analyzing trace with hash 2129111335, now seen corresponding path program 1 times [2020-12-22 14:45:22,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:22,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724656068] [2020-12-22 14:45:22,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:45:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-22 14:45:23,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724656068] [2020-12-22 14:45:23,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:45:23,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 14:45:23,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574015794] [2020-12-22 14:45:23,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 14:45:23,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:45:23,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 14:45:23,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 14:45:23,490 INFO L87 Difference]: Start difference. First operand 78318 states and 106409 transitions. Second operand 4 states. [2020-12-22 14:45:32,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:32,069 INFO L93 Difference]: Finished difference Result 305778 states and 413851 transitions. [2020-12-22 14:45:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 14:45:32,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2020-12-22 14:45:32,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:45:32,549 INFO L225 Difference]: With dead ends: 305778 [2020-12-22 14:45:32,549 INFO L226 Difference]: Without dead ends: 227529 [2020-12-22 14:45:32,693 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 14:45:32,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227529 states. [2020-12-22 14:45:36,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227529 to 78350. [2020-12-22 14:45:36,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78350 states. [2020-12-22 14:45:36,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78350 states to 78350 states and 106441 transitions. [2020-12-22 14:45:36,662 INFO L78 Accepts]: Start accepts. Automaton has 78350 states and 106441 transitions. Word has length 198 [2020-12-22 14:45:36,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:45:36,663 INFO L481 AbstractCegarLoop]: Abstraction has 78350 states and 106441 transitions. [2020-12-22 14:45:36,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 14:45:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 78350 states and 106441 transitions. [2020-12-22 14:45:36,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-12-22 14:45:36,679 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:36,680 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:36,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 14:45:36,680 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:36,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:36,681 INFO L82 PathProgramCache]: Analyzing trace with hash -64638435, now seen corresponding path program 1 times [2020-12-22 14:45:36,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:36,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818116733] [2020-12-22 14:45:36,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:45:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:37,672 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-22 14:45:37,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818116733] [2020-12-22 14:45:37,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:45:37,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 14:45:37,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215266791] [2020-12-22 14:45:37,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 14:45:37,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:45:37,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 14:45:37,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 14:45:37,676 INFO L87 Difference]: Start difference. First operand 78350 states and 106441 transitions. Second operand 4 states. [2020-12-22 14:45:46,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:46,101 INFO L93 Difference]: Finished difference Result 266962 states and 360420 transitions. [2020-12-22 14:45:46,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 14:45:46,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 204 [2020-12-22 14:45:46,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:45:46,461 INFO L225 Difference]: With dead ends: 266962 [2020-12-22 14:45:46,461 INFO L226 Difference]: Without dead ends: 188681 [2020-12-22 14:45:46,570 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 14:45:46,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188681 states. [2020-12-22 14:45:50,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188681 to 78382. [2020-12-22 14:45:50,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78382 states. [2020-12-22 14:45:50,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78382 states to 78382 states and 106473 transitions. [2020-12-22 14:45:50,587 INFO L78 Accepts]: Start accepts. Automaton has 78382 states and 106473 transitions. Word has length 204 [2020-12-22 14:45:50,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:45:50,588 INFO L481 AbstractCegarLoop]: Abstraction has 78382 states and 106473 transitions. [2020-12-22 14:45:50,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 14:45:50,588 INFO L276 IsEmpty]: Start isEmpty. Operand 78382 states and 106473 transitions. [2020-12-22 14:45:50,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-12-22 14:45:50,602 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:50,603 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:50,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 14:45:50,603 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:50,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:50,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1168581842, now seen corresponding path program 1 times [2020-12-22 14:45:50,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:50,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449171339] [2020-12-22 14:45:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:45:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:45:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-22 14:45:51,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449171339] [2020-12-22 14:45:51,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:45:51,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:45:51,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969763830] [2020-12-22 14:45:51,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:45:51,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:45:51,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:45:51,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:45:51,124 INFO L87 Difference]: Start difference. First operand 78382 states and 106473 transitions. Second operand 3 states. [2020-12-22 14:45:56,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:45:56,470 INFO L93 Difference]: Finished difference Result 156695 states and 212863 transitions. [2020-12-22 14:45:56,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:45:56,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-12-22 14:45:56,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:45:56,607 INFO L225 Difference]: With dead ends: 156695 [2020-12-22 14:45:56,607 INFO L226 Difference]: Without dead ends: 78382 [2020-12-22 14:45:56,697 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 14:45:56,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78382 states. [2020-12-22 14:45:59,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78382 to 78102. [2020-12-22 14:45:59,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78102 states. [2020-12-22 14:45:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78102 states to 78102 states and 106073 transitions. [2020-12-22 14:45:59,809 INFO L78 Accepts]: Start accepts. Automaton has 78102 states and 106073 transitions. Word has length 207 [2020-12-22 14:45:59,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:45:59,810 INFO L481 AbstractCegarLoop]: Abstraction has 78102 states and 106073 transitions. [2020-12-22 14:45:59,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:45:59,810 INFO L276 IsEmpty]: Start isEmpty. Operand 78102 states and 106073 transitions. [2020-12-22 14:45:59,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-12-22 14:45:59,827 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:45:59,827 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:59,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 14:45:59,828 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:45:59,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:45:59,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1426747280, now seen corresponding path program 1 times [2020-12-22 14:45:59,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:45:59,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966681364] [2020-12-22 14:45:59,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:46:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-22 14:46:01,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966681364] [2020-12-22 14:46:01,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:46:01,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:46:01,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804519408] [2020-12-22 14:46:01,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:46:01,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:46:01,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:46:01,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:01,353 INFO L87 Difference]: Start difference. First operand 78102 states and 106073 transitions. Second operand 5 states. [2020-12-22 14:46:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:46:13,015 INFO L93 Difference]: Finished difference Result 331367 states and 450080 transitions. [2020-12-22 14:46:13,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 14:46:13,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2020-12-22 14:46:13,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:46:13,831 INFO L225 Difference]: With dead ends: 331367 [2020-12-22 14:46:13,831 INFO L226 Difference]: Without dead ends: 330773 [2020-12-22 14:46:13,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:46:14,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330773 states. [2020-12-22 14:46:19,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330773 to 77508. [2020-12-22 14:46:19,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77508 states. [2020-12-22 14:46:19,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77508 states to 77508 states and 105251 transitions. [2020-12-22 14:46:19,392 INFO L78 Accepts]: Start accepts. Automaton has 77508 states and 105251 transitions. Word has length 207 [2020-12-22 14:46:19,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:46:19,392 INFO L481 AbstractCegarLoop]: Abstraction has 77508 states and 105251 transitions. [2020-12-22 14:46:19,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:46:19,392 INFO L276 IsEmpty]: Start isEmpty. Operand 77508 states and 105251 transitions. [2020-12-22 14:46:19,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-12-22 14:46:19,409 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:46:19,410 INFO L422 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:19,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 14:46:19,410 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:46:19,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:46:19,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1448652574, now seen corresponding path program 1 times [2020-12-22 14:46:19,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:46:19,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631139719] [2020-12-22 14:46:19,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:46:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:20,317 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-12-22 14:46:20,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631139719] [2020-12-22 14:46:20,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:46:20,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:46:20,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256603888] [2020-12-22 14:46:20,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:46:20,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:46:20,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:46:20,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:46:20,321 INFO L87 Difference]: Start difference. First operand 77508 states and 105251 transitions. Second operand 5 states. [2020-12-22 14:46:36,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:46:36,015 INFO L93 Difference]: Finished difference Result 366733 states and 498149 transitions. [2020-12-22 14:46:36,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 14:46:36,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2020-12-22 14:46:36,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:46:36,847 INFO L225 Difference]: With dead ends: 366733 [2020-12-22 14:46:36,847 INFO L226 Difference]: Without dead ends: 330773 [2020-12-22 14:46:37,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:46:37,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330773 states. [2020-12-22 14:46:43,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330773 to 77508. [2020-12-22 14:46:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77508 states. [2020-12-22 14:46:43,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77508 states to 77508 states and 105235 transitions. [2020-12-22 14:46:43,283 INFO L78 Accepts]: Start accepts. Automaton has 77508 states and 105235 transitions. Word has length 213 [2020-12-22 14:46:43,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:46:43,284 INFO L481 AbstractCegarLoop]: Abstraction has 77508 states and 105235 transitions. [2020-12-22 14:46:43,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:46:43,284 INFO L276 IsEmpty]: Start isEmpty. Operand 77508 states and 105235 transitions. [2020-12-22 14:46:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-12-22 14:46:43,304 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:46:43,304 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:43,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 14:46:43,305 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:46:43,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:46:43,306 INFO L82 PathProgramCache]: Analyzing trace with hash 731471802, now seen corresponding path program 1 times [2020-12-22 14:46:43,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:46:43,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124238176] [2020-12-22 14:46:43,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:46:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-22 14:46:44,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124238176] [2020-12-22 14:46:44,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:46:44,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:46:44,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026315081] [2020-12-22 14:46:44,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:46:44,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:46:44,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:46:44,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:46:44,038 INFO L87 Difference]: Start difference. First operand 77508 states and 105235 transitions. Second operand 3 states. [2020-12-22 14:46:53,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:46:53,327 INFO L93 Difference]: Finished difference Result 166399 states and 226927 transitions. [2020-12-22 14:46:53,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:46:53,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-12-22 14:46:53,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:46:53,465 INFO L225 Difference]: With dead ends: 166399 [2020-12-22 14:46:53,466 INFO L226 Difference]: Without dead ends: 88960 [2020-12-22 14:46:53,549 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 14:46:53,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88960 states. [2020-12-22 14:46:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88960 to 88892. [2020-12-22 14:46:58,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88892 states. [2020-12-22 14:46:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88892 states to 88892 states and 120523 transitions. [2020-12-22 14:46:58,768 INFO L78 Accepts]: Start accepts. Automaton has 88892 states and 120523 transitions. Word has length 232 [2020-12-22 14:46:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:46:58,769 INFO L481 AbstractCegarLoop]: Abstraction has 88892 states and 120523 transitions. [2020-12-22 14:46:58,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:46:58,769 INFO L276 IsEmpty]: Start isEmpty. Operand 88892 states and 120523 transitions. [2020-12-22 14:46:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-12-22 14:46:58,794 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:46:58,794 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:58,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 14:46:58,795 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:46:58,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:46:58,795 INFO L82 PathProgramCache]: Analyzing trace with hash 369200513, now seen corresponding path program 1 times [2020-12-22 14:46:58,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:46:58,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174777842] [2020-12-22 14:46:58,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:46:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:46:59,572 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-22 14:46:59,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174777842] [2020-12-22 14:46:59,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:46:59,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:46:59,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011928628] [2020-12-22 14:46:59,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:46:59,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:46:59,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:46:59,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:46:59,580 INFO L87 Difference]: Start difference. First operand 88892 states and 120523 transitions. Second operand 3 states.