/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:29:23,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:29:23,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:29:23,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:29:23,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:29:23,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:29:23,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:29:23,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:29:23,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:29:23,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:29:23,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:29:23,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:29:23,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:29:23,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:29:23,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:29:23,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:29:24,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:29:24,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:29:24,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:29:24,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:29:24,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:29:24,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:29:24,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:29:24,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:29:24,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:29:24,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:29:24,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:29:24,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:29:24,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:29:24,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:29:24,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:29:24,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:29:24,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:29:24,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:29:24,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:29:24,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:29:24,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:29:24,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:29:24,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:29:24,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:29:24,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:29:24,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:29:24,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:29:24,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:29:24,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:29:24,091 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:29:24,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:29:24,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:29:24,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:29:24,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:29:24,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:29:24,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:29:24,093 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:29:24,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:29:24,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:29:24,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:29:24,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:29:24,095 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:29:24,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:29:24,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:29:24,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:29:24,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:29:24,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:29:24,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:29:24,096 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:29:24,097 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:29:24,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:29:24,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:29:24,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:29:24,580 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:29:24,581 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:29:24,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label58.c [2021-02-24 04:29:24,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8315eda1c/2b4c7c00389b42c4bff418f02b84d681/FLAGfe444b882 [2021-02-24 04:29:25,385 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:29:25,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label58.c [2021-02-24 04:29:25,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8315eda1c/2b4c7c00389b42c4bff418f02b84d681/FLAGfe444b882 [2021-02-24 04:29:25,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8315eda1c/2b4c7c00389b42c4bff418f02b84d681 [2021-02-24 04:29:25,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:29:25,625 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:29:25,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:29:25,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:29:25,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:29:25,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:29:25" (1/1) ... [2021-02-24 04:29:25,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2141ba80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:25, skipping insertion in model container [2021-02-24 04:29:25,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:29:25" (1/1) ... [2021-02-24 04:29:25,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:29:25,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:29:26,136 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label58.c[17861,17874] [2021-02-24 04:29:26,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:29:26,217 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:29:26,408 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label58.c[17861,17874] [2021-02-24 04:29:26,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:29:26,473 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:29:26,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26 WrapperNode [2021-02-24 04:29:26,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:29:26,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:29:26,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:29:26,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:29:26,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26" (1/1) ... [2021-02-24 04:29:26,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26" (1/1) ... [2021-02-24 04:29:26,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26" (1/1) ... [2021-02-24 04:29:26,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26" (1/1) ... [2021-02-24 04:29:26,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26" (1/1) ... [2021-02-24 04:29:26,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26" (1/1) ... [2021-02-24 04:29:26,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26" (1/1) ... [2021-02-24 04:29:26,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:29:26,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:29:26,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:29:26,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:29:26,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26" (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 [2021-02-24 04:29:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:29:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:29:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:29:26,700 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 04:29:26,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:29:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 04:29:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:29:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:29:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:29:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:29:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:29:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:29:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:29:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:29:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:29:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:29:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:29:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:29:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:29:28,555 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:29:28,555 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:29:28,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:29:28 BoogieIcfgContainer [2021-02-24 04:29:28,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:29:28,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:29:28,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:29:28,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:29:28,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:29:25" (1/3) ... [2021-02-24 04:29:28,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7f5034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:29:28, skipping insertion in model container [2021-02-24 04:29:28,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:29:26" (2/3) ... [2021-02-24 04:29:28,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7f5034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:29:28, skipping insertion in model container [2021-02-24 04:29:28,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:29:28" (3/3) ... [2021-02-24 04:29:28,568 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label58.c [2021-02-24 04:29:28,575 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:29:28,580 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:29:28,598 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:29:28,624 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:29:28,625 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:29:28,625 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:29:28,625 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:29:28,625 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:29:28,625 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:29:28,626 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:29:28,626 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:29:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-24 04:29:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-02-24 04:29:28,682 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:29:28,683 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:29:28,684 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:29:28,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:29:28,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1941717349, now seen corresponding path program 1 times [2021-02-24 04:29:28,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:29:28,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433265736] [2021-02-24 04:29:28,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:29:28,791 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:29:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:29:29,292 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-24 04:29:29,293 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-24 04:29:29,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:29,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:29:29,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:29,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:29:29,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:29,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:29:29,472 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-24 04:29:29,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:29:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:29:29,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:29,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:29:29,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:29,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:29:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:29:29,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433265736] [2021-02-24 04:29:29,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:29:29,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:29:29,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68925800] [2021-02-24 04:29:29,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:29:29,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:29:29,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:29:29,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:29:29,621 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 5 states. [2021-02-24 04:29:29,915 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-24 04:29:32,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:29:32,586 INFO L93 Difference]: Finished difference Result 1279 states and 1678 transitions. [2021-02-24 04:29:32,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:29:32,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2021-02-24 04:29:32,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:29:32,628 INFO L225 Difference]: With dead ends: 1279 [2021-02-24 04:29:32,629 INFO L226 Difference]: Without dead ends: 704 [2021-02-24 04:29:32,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:29:32,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-02-24 04:29:32,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 611. [2021-02-24 04:29:32,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2021-02-24 04:29:32,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 739 transitions. [2021-02-24 04:29:32,872 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 739 transitions. Word has length 135 [2021-02-24 04:29:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:29:32,874 INFO L480 AbstractCegarLoop]: Abstraction has 611 states and 739 transitions. [2021-02-24 04:29:32,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:29:32,874 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 739 transitions. [2021-02-24 04:29:32,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-02-24 04:29:32,882 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:29:32,882 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-24 04:29:32,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:29:32,883 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:29:32,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:29:32,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1648953155, now seen corresponding path program 1 times [2021-02-24 04:29:32,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:29:32,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985783419] [2021-02-24 04:29:32,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:29:32,938 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:32,964 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:32,972 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:32,978 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,014 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,029 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,035 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,040 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,045 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,054 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,057 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,064 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,067 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,073 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,106 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,109 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,113 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,115 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,117 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,123 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,126 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,132 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,134 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,140 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,176 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,180 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,185 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,187 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,189 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,195 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,197 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,203 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,205 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,210 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,243 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,246 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,254 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,256 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,258 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,265 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,268 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,276 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,278 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,288 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,321 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,323 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,328 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,330 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,332 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,338 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,340 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,347 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,349 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,355 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,389 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,391 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,394 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,395 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,397 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,404 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,406 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,412 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,415 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,422 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,460 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,461 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,464 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,466 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,468 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,473 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,475 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,480 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,483 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,488 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,521 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,524 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,527 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,529 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,530 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,539 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,541 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,547 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,549 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,555 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,616 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,618 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,621 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,623 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,624 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,630 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,632 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,638 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,640 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:29:33,645 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:29:33,679 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:29:33,682 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:29:33,685 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:29:33,686 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:29:33,688 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,688 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:33,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:29:33,698 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:29:33,698 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:29:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:29:33,933 WARN L141 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size [2021-02-24 04:29:33,933 WARN L147 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size 4 [2021-02-24 04:29:33,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:29:33,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:29:33,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:33,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:29:34,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:29:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:29:34,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:29:34,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:29:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:29:34,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:34,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-24 04:29:34,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:29:34,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:29:34,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:29:34,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:29:34,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:29:34,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:29:34,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:29:34,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:29:34,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:29:34,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:29:34,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:29:34,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:29:34,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:34,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-24 04:29:34,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:34,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-24 04:29:34,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:34,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-24 04:29:34,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:34,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-02-24 04:29:34,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:34,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:34,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:34,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-02-24 04:29:36,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:36,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:36,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:36,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:36,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-02-24 04:29:37,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:37,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:37,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:37,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:37,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:29:37,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:37,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:37,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:37,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:37,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:29:38,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:38,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:38,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:38,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:38,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-24 04:29:39,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:39,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:39,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:39,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:29:39,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-02-24 04:29:41,061 WARN L141 QuantifierPusher]: treesize reduction 59, result has 61.2 percent of original size [2021-02-24 04:29:41,064 WARN L147 QuantifierPusher]: treesize reduction 59, result has 61.2 percent of original size 93 [2021-02-24 04:29:41,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-24 04:29:41,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-24 04:29:41,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:41,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:29:41,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:29:41,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:29:41,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:29:41,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:29:41,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:29:41,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:29:41,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:29:41,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:29:41,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:29:41,675 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-02-24 04:29:41,676 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size 28 [2021-02-24 04:29:41,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:41,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:29:44,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:29:44,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:29:47,331 WARN L141 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-02-24 04:29:47,332 WARN L147 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size 1 [2021-02-24 04:29:47,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985783419] [2021-02-24 04:29:47,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:29:47,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-24 04:29:47,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510953351] [2021-02-24 04:29:47,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-24 04:29:47,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:29:47,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-24 04:29:47,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=543, Unknown=12, NotChecked=0, Total=650 [2021-02-24 04:29:47,336 INFO L87 Difference]: Start difference. First operand 611 states and 739 transitions. Second operand 25 states. [2021-02-24 04:29:47,881 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 97 [2021-02-24 04:29:48,182 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 99 [2021-02-24 04:29:48,437 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 97 [2021-02-24 04:29:48,710 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 103 [2021-02-24 04:29:49,029 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 103 [2021-02-24 04:29:49,353 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2021-02-24 04:29:49,738 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 123 [2021-02-24 04:29:49,968 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:29:59,411 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-24 04:30:07,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:30:07,263 INFO L93 Difference]: Finished difference Result 1064 states and 1266 transitions. [2021-02-24 04:30:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-02-24 04:30:07,264 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 157 [2021-02-24 04:30:07,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:30:07,272 INFO L225 Difference]: With dead ends: 1064 [2021-02-24 04:30:07,272 INFO L226 Difference]: Without dead ends: 1062 [2021-02-24 04:30:07,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=277, Invalid=1433, Unknown=12, NotChecked=0, Total=1722 [2021-02-24 04:30:07,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2021-02-24 04:30:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 971. [2021-02-24 04:30:07,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 971 states. [2021-02-24 04:30:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1167 transitions. [2021-02-24 04:30:07,483 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1167 transitions. Word has length 157 [2021-02-24 04:30:07,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:30:07,483 INFO L480 AbstractCegarLoop]: Abstraction has 971 states and 1167 transitions. [2021-02-24 04:30:07,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-24 04:30:07,484 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1167 transitions. [2021-02-24 04:30:07,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-02-24 04:30:07,489 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:30:07,489 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2021-02-24 04:30:07,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 04:30:07,490 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:30:07,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:30:07,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1361511777, now seen corresponding path program 1 times [2021-02-24 04:30:07,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:30:07,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809327830] [2021-02-24 04:30:07,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:30:07,523 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11