/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/Problem02_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:34:57,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:34:57,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:34:57,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:34:57,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:34:57,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:34:57,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:34:57,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:34:57,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:34:57,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:34:57,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:34:57,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:34:57,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:34:57,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:34:57,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:34:57,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:34:57,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:34:57,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:34:57,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:34:57,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:34:58,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:34:58,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:34:58,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:34:58,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:34:58,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:34:58,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:34:58,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:34:58,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:34:58,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:34:58,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:34:58,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:34:58,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:34:58,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:34:58,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:34:58,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:34:58,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:34:58,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:34:58,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:34:58,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:34:58,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:34:58,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:34:58,052 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 04:34:58,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:34:58,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:34:58,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:34:58,067 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:34:58,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:34:58,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:34:58,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:34:58,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:34:58,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:34:58,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:34:58,069 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:34:58,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:34:58,069 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:34:58,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:34:58,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:34:58,070 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:34:58,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:34:58,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:34:58,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:34:58,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:34:58,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:34:58,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:34:58,072 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:34:58,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:34:58,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:34:58,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:34:58,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:34:58,530 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:34:58,530 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:34:58,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2021-02-24 04:34:58,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dabf0bcf8/8fc5de83e3af4681846764b92f56e69f/FLAGca846d795 [2021-02-24 04:34:59,536 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:34:59,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2021-02-24 04:34:59,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dabf0bcf8/8fc5de83e3af4681846764b92f56e69f/FLAGca846d795 [2021-02-24 04:34:59,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dabf0bcf8/8fc5de83e3af4681846764b92f56e69f [2021-02-24 04:34:59,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:34:59,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:34:59,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:34:59,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:34:59,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:34:59,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:34:59" (1/1) ... [2021-02-24 04:34:59,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a65263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:34:59, skipping insertion in model container [2021-02-24 04:34:59,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:34:59" (1/1) ... [2021-02-24 04:34:59,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:34:59,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:35:00,207 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/Problem02_label33.c[21447,21460] [2021-02-24 04:35:00,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:35:00,266 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:35:00,473 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/Problem02_label33.c[21447,21460] [2021-02-24 04:35:00,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:35:00,513 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:35:00,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00 WrapperNode [2021-02-24 04:35:00,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:35:00,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:35:00,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:35:00,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:35:00,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00" (1/1) ... [2021-02-24 04:35:00,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00" (1/1) ... [2021-02-24 04:35:00,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00" (1/1) ... [2021-02-24 04:35:00,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00" (1/1) ... [2021-02-24 04:35:00,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00" (1/1) ... [2021-02-24 04:35:00,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00" (1/1) ... [2021-02-24 04:35:00,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00" (1/1) ... [2021-02-24 04:35:00,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:35:00,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:35:00,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:35:00,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:35:00,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00" (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 04:35:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:35:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:35:00,890 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:35:00,890 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 04:35:00,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:35:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 04:35:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:35:00,891 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:35:00,892 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:35:00,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:35:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:35:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:35:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:35:00,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:35:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:35:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:35:00,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:35:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:35:00,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:35:02,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:35:02,612 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:35:02,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:35:02 BoogieIcfgContainer [2021-02-24 04:35:02,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:35:02,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:35:02,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:35:02,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:35:02,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:34:59" (1/3) ... [2021-02-24 04:35:02,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564207b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:35:02, skipping insertion in model container [2021-02-24 04:35:02,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:00" (2/3) ... [2021-02-24 04:35:02,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564207b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:35:02, skipping insertion in model container [2021-02-24 04:35:02,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:35:02" (3/3) ... [2021-02-24 04:35:02,625 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label33.c [2021-02-24 04:35:02,632 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:35:02,638 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:35:02,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:35:02,684 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:35:02,684 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:35:02,684 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:35:02,685 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:35:02,685 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:35:02,685 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:35:02,685 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:35:02,685 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:35:02,714 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-24 04:35:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-24 04:35:02,746 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:35:02,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:02,748 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:35:02,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:35:02,756 INFO L82 PathProgramCache]: Analyzing trace with hash -861768249, now seen corresponding path program 1 times [2021-02-24 04:35:02,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:35:02,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231516253] [2021-02-24 04:35:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:35:02,884 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:35:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:03,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:03,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:03,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:03,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:03,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:03,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:03,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:03,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:03,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:35:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:03,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:03,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:03,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:03,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:35:03,741 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 04:35:03,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231516253] [2021-02-24 04:35:03,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:35:03,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:35:03,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161736172] [2021-02-24 04:35:03,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:35:03,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:35:03,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:35:03,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:35:03,769 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-24 04:35:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:35:06,519 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-24 04:35:06,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:35:06,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2021-02-24 04:35:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:35:06,542 INFO L225 Difference]: With dead ends: 1215 [2021-02-24 04:35:06,542 INFO L226 Difference]: Without dead ends: 636 [2021-02-24 04:35:06,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:35:06,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-24 04:35:06,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-24 04:35:06,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-24 04:35:06,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-24 04:35:06,852 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 175 [2021-02-24 04:35:06,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:35:06,856 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-24 04:35:06,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:35:06,856 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-24 04:35:06,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-02-24 04:35:06,874 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:35:06,875 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:06,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:35:06,876 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:35:06,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:35:06,877 INFO L82 PathProgramCache]: Analyzing trace with hash -487931951, now seen corresponding path program 1 times [2021-02-24 04:35:06,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:35:06,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257688906] [2021-02-24 04:35:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:35:06,967 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:35:06,996 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:35:07,006 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:35:07,016 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:35:07,059 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:07,076 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:07,086 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-24 04:35:07,092 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:07,102 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:07,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:07,120 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-24 04:35:07,125 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:35:07,131 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:35:07,144 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:35:07,151 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:35:07,182 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:07,187 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:07,196 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-24 04:35:07,201 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:07,205 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:07,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:07,224 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-24 04:35:07,226 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:35:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:07,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:07,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:07,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:07,555 WARN L141 QuantifierPusher]: treesize reduction 17, result has 39.3 percent of original size [2021-02-24 04:35:07,556 WARN L147 QuantifierPusher]: treesize reduction 17, result has 39.3 percent of original size 11 [2021-02-24 04:35:07,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:35:07,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:07,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:35:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:07,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:07,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:35:07,855 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 04:35:07,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:35:07,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:07,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:35:07,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:35:07,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:35:07,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:35:07,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:35:07,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:07,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:35:08,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:35:08,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:35:08,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-02-24 04:35:08,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:35:08,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:35:08,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-02-24 04:35:08,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-02-24 04:35:08,580 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-24 04:35:08,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-02-24 04:35:08,778 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-24 04:35:08,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-02-24 04:35:08,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:08,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-24 04:35:09,041 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-02-24 04:35:09,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-02-24 04:35:09,305 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-02-24 04:35:09,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-24 04:35:09,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-02-24 04:35:09,694 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-02-24 04:35:09,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:09,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-02-24 04:35:10,041 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-02-24 04:35:10,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:10,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-02-24 04:35:10,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:10,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-02-24 04:35:10,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:10,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-02-24 04:35:10,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:10,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-02-24 04:35:10,612 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-24 04:35:10,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:10,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-24 04:35:10,706 WARN L141 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size [2021-02-24 04:35:10,708 WARN L147 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size 42 [2021-02-24 04:35:10,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:10,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:10,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:10,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:10,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:10,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:10,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:10,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:35:10,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:11,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:11,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:11,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:11,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:11,137 WARN L141 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size [2021-02-24 04:35:11,139 WARN L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-02-24 04:35:11,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:11,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:11,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:11,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:11,256 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-24 04:35:11,258 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-24 04:35:11,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:11,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:11,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:11,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:35:11,372 WARN L141 QuantifierPusher]: treesize reduction 31, result has 3.1 percent of original size [2021-02-24 04:35:11,373 WARN L147 QuantifierPusher]: treesize reduction 31, result has 3.1 percent of original size 1 [2021-02-24 04:35:11,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257688906] [2021-02-24 04:35:11,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:35:11,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-24 04:35:11,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881649298] [2021-02-24 04:35:11,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-24 04:35:11,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:35:11,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-24 04:35:11,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2021-02-24 04:35:11,379 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 30 states. [2021-02-24 04:35:11,848 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:35:12,082 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-24 04:35:12,304 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:35:12,547 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:35:12,786 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:35:13,048 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-24 04:35:13,371 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2021-02-24 04:35:13,817 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-24 04:35:13,987 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-24 04:35:14,162 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-24 04:35:14,564 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-24 04:35:15,159 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2021-02-24 04:35:15,732 WARN L202 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2021-02-24 04:35:16,069 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-24 04:35:16,625 WARN L202 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2021-02-24 04:35:17,255 WARN L202 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-24 04:35:17,647 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-02-24 04:35:18,481 WARN L202 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:35:18,724 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:35:19,620 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:35:19,818 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:35:20,063 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-24 04:35:20,311 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-24 04:35:20,643 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-24 04:35:21,062 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-24 04:35:21,424 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-02-24 04:35:21,877 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-24 04:35:22,280 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-24 04:35:22,914 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:35:28,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:35:28,343 INFO L93 Difference]: Finished difference Result 1711 states and 2167 transitions. [2021-02-24 04:35:28,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-02-24 04:35:28,344 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 209 [2021-02-24 04:35:28,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:35:28,354 INFO L225 Difference]: With dead ends: 1711 [2021-02-24 04:35:28,355 INFO L226 Difference]: Without dead ends: 1118 [2021-02-24 04:35:28,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1440 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=976, Invalid=3716, Unknown=0, NotChecked=0, Total=4692 [2021-02-24 04:35:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2021-02-24 04:35:28,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1052. [2021-02-24 04:35:28,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2021-02-24 04:35:28,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1321 transitions. [2021-02-24 04:35:28,625 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1321 transitions. Word has length 209 [2021-02-24 04:35:28,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:35:28,626 INFO L480 AbstractCegarLoop]: Abstraction has 1052 states and 1321 transitions. [2021-02-24 04:35:28,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-24 04:35:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1321 transitions. [2021-02-24 04:35:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-24 04:35:28,633 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:35:28,633 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:28,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:35:28,634 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:35:28,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:35:28,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1698306028, now seen corresponding path program 1 times [2021-02-24 04:35:28,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:35:28,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360304550] [2021-02-24 04:35:28,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:35:28,660 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:28,665 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:28,667 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:28,672 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:28,699 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:28,702 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:28,705 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:28,706 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:28,709 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:28,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:28,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:28,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:28,714 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:28,716 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:28,721 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:28,723 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:28,727 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:28,758 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:28,760 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:28,766 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:28,767 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:28,769 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:28,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:28,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:28,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:28,774 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:28,776 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:28,780 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:28,783 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:28,787 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:28,814 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:28,818 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:28,821 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:28,822 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:28,825 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:28,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:28,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:28,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:28,837 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:28,842 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:28,847 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:28,849 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:35:28,854 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:35:28,890 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:28,892 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:28,895 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:28,896 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:28,897 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:28,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:28,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:28,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:28,902 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:28,902 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:35:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:29,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:29,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:29,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:29,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:35:29,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:35:29,104 WARN L141 QuantifierPusher]: treesize reduction 34, result has 30.6 percent of original size [2021-02-24 04:35:29,104 WARN L147 QuantifierPusher]: treesize reduction 34, result has 30.6 percent of original size 15 [2021-02-24 04:35:29,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:35:29,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:29,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:35:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:29,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:29,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:35:29,514 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 04:35:29,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:35:29,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:29,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:35:29,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-24 04:35:29,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:29,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:35:29,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-24 04:35:29,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:35:29,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:35:29,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:35:29,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:29,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:35:29,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-02-24 04:35:29,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-24 04:35:29,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-24 04:35:29,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:35:29,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:29,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-24 04:35:30,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-02-24 04:35:30,199 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-24 04:35:30,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-02-24 04:35:30,396 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-24 04:35:30,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-24 04:35:30,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-02-24 04:35:30,686 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2021-02-24 04:35:30,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-02-24 04:35:30,974 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-02-24 04:35:30,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:30,981 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-02-24 04:35:31,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:31,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-24 04:35:31,366 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-02-24 04:35:31,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:31,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-02-24 04:35:31,722 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-02-24 04:35:31,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:31,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 266 [2021-02-24 04:35:31,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:31,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-02-24 04:35:31,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:31,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-02-24 04:35:31,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:31,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-24 04:35:32,316 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-24 04:35:32,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:32,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-02-24 04:35:32,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:32,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-24 04:35:32,836 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2021-02-24 04:35:32,842 WARN L141 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size [2021-02-24 04:35:32,849 WARN L147 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size 58 [2021-02-24 04:35:32,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:32,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:35:33,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:35:33,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:35:33,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:35:33,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:33,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:35:33,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:35:33,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:35:33,376 WARN L141 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size [2021-02-24 04:35:33,377 WARN L147 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size 25 [2021-02-24 04:35:33,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:35:33,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:33,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:33,503 WARN L141 QuantifierPusher]: treesize reduction 12, result has 66.7 percent of original size [2021-02-24 04:35:33,504 WARN L147 QuantifierPusher]: treesize reduction 12, result has 66.7 percent of original size 24 [2021-02-24 04:35:33,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360304550] [2021-02-24 04:35:33,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:35:33,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-02-24 04:35:33,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893111908] [2021-02-24 04:35:33,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-24 04:35:33,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:35:33,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-24 04:35:33,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-02-24 04:35:33,508 INFO L87 Difference]: Start difference. First operand 1052 states and 1321 transitions. Second operand 31 states. [2021-02-24 04:35:33,899 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:35:34,125 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-24 04:35:34,315 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:35:34,518 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:35:34,742 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:35:34,984 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-24 04:35:35,288 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2021-02-24 04:35:35,701 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-24 04:35:35,852 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-24 04:35:36,023 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-24 04:35:36,444 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-24 04:35:37,067 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 134 [2021-02-24 04:35:37,648 WARN L202 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2021-02-24 04:35:38,003 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-02-24 04:35:38,547 WARN L202 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2021-02-24 04:35:39,205 WARN L202 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2021-02-24 04:35:39,664 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-02-24 04:35:40,478 WARN L202 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:35:41,270 WARN L202 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-24 04:35:41,467 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:35:42,279 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:35:42,486 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:35:42,743 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-24 04:35:43,027 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-24 04:35:43,333 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-24 04:35:43,755 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-02-24 04:35:44,150 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-24 04:35:44,553 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-02-24 04:35:44,946 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-02-24 04:35:45,109 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-24 04:35:45,612 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:35:46,158 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:35:50,194 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 101 [2021-02-24 04:35:52,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:35:52,132 INFO L93 Difference]: Finished difference Result 3028 states and 3933 transitions. [2021-02-24 04:35:52,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-24 04:35:52,133 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 210 [2021-02-24 04:35:52,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:35:52,149 INFO L225 Difference]: With dead ends: 3028 [2021-02-24 04:35:52,149 INFO L226 Difference]: Without dead ends: 2006 [2021-02-24 04:35:52,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 10 SyntacticMatches, 7 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1625 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=1138, Invalid=4264, Unknown=0, NotChecked=0, Total=5402 [2021-02-24 04:35:52,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2021-02-24 04:35:52,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1927. [2021-02-24 04:35:52,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2021-02-24 04:35:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2491 transitions. [2021-02-24 04:35:52,677 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2491 transitions. Word has length 210 [2021-02-24 04:35:52,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:35:52,677 INFO L480 AbstractCegarLoop]: Abstraction has 1927 states and 2491 transitions. [2021-02-24 04:35:52,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-02-24 04:35:52,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2491 transitions. [2021-02-24 04:35:52,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-02-24 04:35:52,688 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:35:52,688 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 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 04:35:52,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:35:52,689 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:35:52,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:35:52,689 INFO L82 PathProgramCache]: Analyzing trace with hash -983096797, now seen corresponding path program 1 times [2021-02-24 04:35:52,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:35:52,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360920745] [2021-02-24 04:35:52,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:35:52,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:52,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:52,774 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:52,776 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:52,780 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:52,781 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:52,783 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:52,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:52,790 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:52,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:52,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:52,842 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:52,844 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:52,846 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:35:52,848 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:52,850 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:52,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:52,855 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:35:52,855 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:35:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:52,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:52,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:52,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:52,968 WARN L141 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-02-24 04:35:52,969 WARN L147 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size 8 [2021-02-24 04:35:52,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:35:52,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:52,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:53,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:35:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:53,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:53,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:35:53,154 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 04:35:53,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:35:53,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:53,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:35:53,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:53,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:35:53,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:35:53,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:53,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:35:53,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:35:53,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:35:53,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-24 04:35:53,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:35:53,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-24 04:35:53,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:35:53,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-02-24 04:35:53,808 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2021-02-24 04:35:53,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:53,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-24 04:35:54,045 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-02-24 04:35:54,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:54,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-02-24 04:35:54,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:54,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-02-24 04:35:54,345 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2021-02-24 04:35:54,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:54,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-02-24 04:35:54,640 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-02-24 04:35:54,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:54,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-24 04:35:54,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:54,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-02-24 04:35:55,050 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-02-24 04:35:55,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:55,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-02-24 04:35:55,286 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-02-24 04:35:55,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:55,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 271 [2021-02-24 04:35:55,716 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2021-02-24 04:35:55,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:55,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 276 [2021-02-24 04:35:55,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:55,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-02-24 04:35:55,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:55,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-02-24 04:35:56,403 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2021-02-24 04:35:56,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:56,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 299 [2021-02-24 04:35:56,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:56,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-02-24 04:35:57,001 WARN L202 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2021-02-24 04:35:57,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:57,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-02-24 04:35:57,562 WARN L202 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-02-24 04:35:57,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:57,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-02-24 04:35:58,156 WARN L202 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 80 [2021-02-24 04:35:58,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:58,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 370 [2021-02-24 04:35:58,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:58,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-02-24 04:35:58,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:58,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 369 [2021-02-24 04:35:58,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:58,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 370 [2021-02-24 04:35:59,015 WARN L202 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-02-24 04:35:59,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:59,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-02-24 04:35:59,643 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2021-02-24 04:35:59,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:59,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 386 [2021-02-24 04:35:59,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:59,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 406 [2021-02-24 04:35:59,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:59,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 406 [2021-02-24 04:35:59,984 WARN L141 QuantifierPusher]: treesize reduction 340, result has 11.0 percent of original size [2021-02-24 04:35:59,985 WARN L147 QuantifierPusher]: treesize reduction 340, result has 11.0 percent of original size 42 [2021-02-24 04:36:00,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:00,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:00,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:00,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:00,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:00,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:00,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:00,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:00,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:00,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:00,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:00,996 WARN L202 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-24 04:36:00,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:00,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:00,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:01,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:01,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:36:01,755 WARN L202 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-24 04:36:01,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:01,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:01,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:01,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:01,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:36:01,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:01,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:01,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:01,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:01,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-24 04:36:02,456 WARN L202 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-24 04:36:02,458 WARN L141 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-02-24 04:36:02,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:02,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:02,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:02,461 WARN L147 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size 30 [2021-02-24 04:36:02,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:02,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:02,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:02,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:02,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:36:03,174 WARN L202 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-24 04:36:03,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:03,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:03,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:36:03,934 WARN L202 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-24 04:36:03,935 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-24 04:36:03,936 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-24 04:36:03,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360920745] [2021-02-24 04:36:03,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:36:03,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-02-24 04:36:03,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451628670] [2021-02-24 04:36:03,938 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-02-24 04:36:03,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:36:03,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-02-24 04:36:03,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2021-02-24 04:36:03,940 INFO L87 Difference]: Start difference. First operand 1927 states and 2491 transitions. Second operand 35 states. [2021-02-24 04:36:04,392 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-24 04:36:04,603 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2021-02-24 04:36:04,797 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-24 04:36:05,017 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-24 04:36:05,278 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-24 04:36:05,531 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2021-02-24 04:36:05,851 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2021-02-24 04:36:06,266 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2021-02-24 04:36:06,399 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2021-02-24 04:36:06,559 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-02-24 04:36:06,957 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 128 [2021-02-24 04:36:07,558 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2021-02-24 04:36:08,115 WARN L202 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 135 [2021-02-24 04:36:08,487 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-24 04:36:09,040 WARN L202 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2021-02-24 04:36:09,670 WARN L202 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-24 04:36:10,204 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-02-24 04:36:10,984 WARN L202 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:36:11,780 WARN L202 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-24 04:36:12,594 WARN L202 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 145 [2021-02-24 04:36:13,511 WARN L202 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 145 [2021-02-24 04:36:14,342 WARN L202 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 146 [2021-02-24 04:36:14,576 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:36:15,594 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-24 04:36:15,774 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-24 04:36:16,106 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-24 04:36:16,350 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-02-24 04:36:16,648 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-02-24 04:36:17,043 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-02-24 04:36:17,455 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-24 04:36:18,020 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-24 04:36:18,457 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-24 04:36:18,875 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-24 04:36:19,482 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:36:20,114 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:36:20,675 WARN L202 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:36:21,247 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-24 04:36:22,080 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-24 04:36:22,677 WARN L202 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:36:26,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:36:26,949 INFO L93 Difference]: Finished difference Result 5090 states and 6771 transitions. [2021-02-24 04:36:26,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-24 04:36:26,950 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 219 [2021-02-24 04:36:26,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:36:26,982 INFO L225 Difference]: With dead ends: 5090 [2021-02-24 04:36:26,982 INFO L226 Difference]: Without dead ends: 3193 [2021-02-24 04:36:26,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 10 SyntacticMatches, 11 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2087 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=1486, Invalid=5486, Unknown=0, NotChecked=0, Total=6972 [2021-02-24 04:36:26,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2021-02-24 04:36:27,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 2636. [2021-02-24 04:36:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2636 states. [2021-02-24 04:36:27,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3420 transitions. [2021-02-24 04:36:27,599 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3420 transitions. Word has length 219 [2021-02-24 04:36:27,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:36:27,599 INFO L480 AbstractCegarLoop]: Abstraction has 2636 states and 3420 transitions. [2021-02-24 04:36:27,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2021-02-24 04:36:27,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3420 transitions. [2021-02-24 04:36:27,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-02-24 04:36:27,612 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:36:27,612 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 04:36:27,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 04:36:27,613 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:36:27,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:36:27,613 INFO L82 PathProgramCache]: Analyzing trace with hash 275721730, now seen corresponding path program 1 times [2021-02-24 04:36:27,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:36:27,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129647947] [2021-02-24 04:36:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:36:27,633 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:27,640 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:27,642 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:27,646 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:27,680 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:36:27,684 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:36:27,687 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:36:27,688 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:36:27,690 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:27,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:36:27,696 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:36:27,699 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:27,706 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:27,708 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:27,711 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:27,741 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:36:27,743 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:36:27,745 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:36:27,746 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:36:27,748 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:27,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:36:27,752 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:36:27,753 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:36:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:36:27,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:36:27,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:36:27,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:36:27,904 WARN L141 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size [2021-02-24 04:36:27,905 WARN L147 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size 12 [2021-02-24 04:36:27,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:36:27,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:36:27,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:36:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:36:28,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:36:28,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:36:28,138 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 04:36:28,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:36:28,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:28,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-24 04:36:28,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:36:28,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:36:28,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:36:28,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:36:28,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:36:28,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:36:28,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:36:28,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-24 04:36:28,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:36:28,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-24 04:36:28,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:36:28,651 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-02-24 04:36:28,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-02-24 04:36:28,821 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-02-24 04:36:28,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-02-24 04:36:29,029 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-02-24 04:36:29,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-02-24 04:36:29,076 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-02-24 04:36:29,228 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-24 04:36:29,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-02-24 04:36:29,554 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-02-24 04:36:29,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-24 04:36:29,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-02-24 04:36:29,978 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-02-24 04:36:29,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-02-24 04:36:30,379 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2021-02-24 04:36:30,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:30,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-02-24 04:36:30,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:30,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-24 04:36:30,887 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2021-02-24 04:36:30,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:30,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-02-24 04:36:30,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:30,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-02-24 04:36:31,451 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2021-02-24 04:36:31,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-02-24 04:36:31,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-02-24 04:36:32,078 WARN L202 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2021-02-24 04:36:32,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:32,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-24 04:36:32,656 WARN L202 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-02-24 04:36:32,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:32,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-02-24 04:36:32,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:32,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-02-24 04:36:33,316 WARN L202 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-24 04:36:33,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-02-24 04:36:33,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 346 [2021-02-24 04:36:33,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-02-24 04:36:34,118 WARN L202 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-24 04:36:34,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:34,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-24 04:36:34,740 WARN L202 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2021-02-24 04:36:34,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:34,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-02-24 04:36:34,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:34,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-24 04:36:34,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:34,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-24 04:36:35,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:35,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-02-24 04:36:35,697 WARN L202 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-02-24 04:36:35,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:35,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-02-24 04:36:36,357 WARN L202 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2021-02-24 04:36:36,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:36,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-02-24 04:36:37,105 WARN L202 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2021-02-24 04:36:37,109 WARN L141 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size [2021-02-24 04:36:37,110 WARN L147 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size 42 [2021-02-24 04:36:37,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:37,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:37,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:37,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:37,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:37,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:36:37,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:37,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:36:37,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:37,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:36:37,546 WARN L141 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size [2021-02-24 04:36:37,547 WARN L147 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size 26 [2021-02-24 04:36:37,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:37,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:36:37,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:37,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:37,701 WARN L141 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-02-24 04:36:37,702 WARN L147 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size 1 [2021-02-24 04:36:37,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129647947] [2021-02-24 04:36:37,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:36:37,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-02-24 04:36:37,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108043207] [2021-02-24 04:36:37,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-24 04:36:37,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:36:37,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-24 04:36:37,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=1017, Unknown=0, NotChecked=0, Total=1406 [2021-02-24 04:36:37,706 INFO L87 Difference]: Start difference. First operand 2636 states and 3420 transitions. Second operand 36 states. [2021-02-24 04:36:38,116 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-24 04:36:38,348 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2021-02-24 04:36:38,567 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-24 04:36:38,822 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-24 04:36:39,050 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-24 04:36:39,292 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2021-02-24 04:36:39,620 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2021-02-24 04:36:40,060 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2021-02-24 04:36:40,211 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-02-24 04:36:40,392 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-02-24 04:36:40,801 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-02-24 04:36:41,423 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2021-02-24 04:36:42,008 WARN L202 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 135 [2021-02-24 04:36:42,390 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-24 04:36:42,960 WARN L202 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2021-02-24 04:36:43,650 WARN L202 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-24 04:36:44,296 WARN L202 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-02-24 04:36:45,128 WARN L202 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:36:45,975 WARN L202 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-24 04:36:46,811 WARN L202 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-24 04:36:47,727 WARN L202 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-24 04:36:48,610 WARN L202 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 146 [2021-02-24 04:36:49,558 WARN L202 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2021-02-24 04:36:50,453 WARN L202 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 148 [2021-02-24 04:36:51,406 WARN L202 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 149 [2021-02-24 04:36:51,595 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:36:52,652 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-24 04:36:52,844 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-24 04:36:53,106 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-24 04:36:53,361 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-24 04:36:53,636 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-02-24 04:36:54,042 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-02-24 04:36:54,451 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-24 04:36:54,960 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-24 04:36:55,377 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-24 04:36:55,862 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 101 [2021-02-24 04:36:56,240 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-24 04:36:56,837 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:36:57,427 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:36:57,986 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:36:58,639 WARN L202 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:36:59,319 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:36:59,874 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:37:00,678 WARN L202 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-24 04:37:01,320 WARN L202 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:37:01,931 WARN L202 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:37:05,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:37:05,331 INFO L93 Difference]: Finished difference Result 6073 states and 8025 transitions. [2021-02-24 04:37:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-02-24 04:37:05,332 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 220 [2021-02-24 04:37:05,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:37:05,355 INFO L225 Difference]: With dead ends: 6073 [2021-02-24 04:37:05,355 INFO L226 Difference]: Without dead ends: 3467 [2021-02-24 04:37:05,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 10 SyntacticMatches, 11 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2528 ImplicationChecksByTransitivity, 29.6s TimeCoverageRelationStatistics Valid=1916, Invalid=6456, Unknown=0, NotChecked=0, Total=8372 [2021-02-24 04:37:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3467 states. [2021-02-24 04:37:06,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3467 to 2923. [2021-02-24 04:37:06,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2923 states. [2021-02-24 04:37:06,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 3781 transitions. [2021-02-24 04:37:06,307 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 3781 transitions. Word has length 220 [2021-02-24 04:37:06,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:37:06,308 INFO L480 AbstractCegarLoop]: Abstraction has 2923 states and 3781 transitions. [2021-02-24 04:37:06,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2021-02-24 04:37:06,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 3781 transitions. [2021-02-24 04:37:06,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-02-24 04:37:06,325 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:37:06,330 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:37:06,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-24 04:37:06,330 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:37:06,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:37:06,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1223225125, now seen corresponding path program 1 times [2021-02-24 04:37:06,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:37:06,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257845136] [2021-02-24 04:37:06,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:37:06,339 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 04:37:06,345 INFO L168 Benchmark]: Toolchain (without parser) took 126612.20 ms. Allocated memory was 151.0 MB in the beginning and 580.9 MB in the end (delta: 429.9 MB). Free memory was 126.0 MB in the beginning and 268.1 MB in the end (delta: -142.0 MB). Peak memory consumption was 288.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:06,345 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:37:06,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 99.4 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:06,345 INFO L168 Benchmark]: Boogie Preprocessor took 238.33 ms. Allocated memory is still 151.0 MB. Free memory was 99.4 MB in the beginning and 130.6 MB in the end (delta: -31.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:06,346 INFO L168 Benchmark]: RCFGBuilder took 1859.49 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 70.0 MB in the end (delta: 60.6 MB). Peak memory consumption was 66.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:06,346 INFO L168 Benchmark]: TraceAbstraction took 123727.18 ms. Allocated memory was 151.0 MB in the beginning and 580.9 MB in the end (delta: 429.9 MB). Free memory was 69.5 MB in the beginning and 268.1 MB in the end (delta: -198.6 MB). Peak memory consumption was 231.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:06,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 126.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 770.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 99.4 MB in the end (delta: 25.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 238.33 ms. Allocated memory is still 151.0 MB. Free memory was 99.4 MB in the beginning and 130.6 MB in the end (delta: -31.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1859.49 ms. Allocated memory is still 151.0 MB. Free memory was 130.6 MB in the beginning and 70.0 MB in the end (delta: 60.6 MB). Peak memory consumption was 66.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 123727.18 ms. Allocated memory was 151.0 MB in the beginning and 580.9 MB in the end (delta: 429.9 MB). Free memory was 69.5 MB in the beginning and 268.1 MB in the end (delta: -198.6 MB). Peak memory consumption was 231.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...