/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:28:17,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:28:17,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:28:17,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:28:17,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:28:17,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:28:17,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:28:17,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:28:17,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:28:17,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:28:17,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:28:17,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:28:17,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:28:17,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:28:17,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:28:17,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:28:17,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:28:17,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:28:17,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:28:17,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:28:17,767 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 04:28:17,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:28:17,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:28:17,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:28:17,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:28:17,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:28:17,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:28:17,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:28:17,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:28:17,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:28:17,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:28:17,782 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:28:17,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:28:17,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:28:17,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:28:17,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:28:17,784 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:28:17,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:28:17,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:28:17,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:28:17,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:28:17,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:28:17,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:28:17,786 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:28:17,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:28:18,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:28:18,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:28:18,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:28:18,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:28:18,155 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:28:18,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2021-02-24 04:28:18,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2259ca9/f1b67a714a404a928fffd0b098295228/FLAG5da53e509 [2021-02-24 04:28:18,882 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:28:18,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2021-02-24 04:28:18,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2259ca9/f1b67a714a404a928fffd0b098295228/FLAG5da53e509 [2021-02-24 04:28:19,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb2259ca9/f1b67a714a404a928fffd0b098295228 [2021-02-24 04:28:19,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:28:19,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:28:19,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:28:19,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:28:19,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:28:19,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:28:19" (1/1) ... [2021-02-24 04:28:19,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605ede4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19, skipping insertion in model container [2021-02-24 04:28:19,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:28:19" (1/1) ... [2021-02-24 04:28:19,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:28:19,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:28:19,725 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label43.c[21463,21476] [2021-02-24 04:28:19,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:28:19,767 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:28:19,867 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label43.c[21463,21476] [2021-02-24 04:28:19,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:28:19,892 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:28:19,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19 WrapperNode [2021-02-24 04:28:19,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:28:19,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:28:19,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:28:19,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:28:19,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19" (1/1) ... [2021-02-24 04:28:19,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19" (1/1) ... [2021-02-24 04:28:19,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19" (1/1) ... [2021-02-24 04:28:19,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19" (1/1) ... [2021-02-24 04:28:19,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19" (1/1) ... [2021-02-24 04:28:19,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19" (1/1) ... [2021-02-24 04:28:19,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19" (1/1) ... [2021-02-24 04:28:20,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:28:20,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:28:20,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:28:20,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:28:20,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19" (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 04:28:20,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:28:20,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:28:20,123 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:28:20,124 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 04:28:20,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:28:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 04:28:20,124 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:28:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:28:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:28:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:28:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:28:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:28:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:28:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:28:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:28:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:28:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:28:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:28:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:28:21,653 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:28:21,654 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:28:21,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:28:21 BoogieIcfgContainer [2021-02-24 04:28:21,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:28:21,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:28:21,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:28:21,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:28:21,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:28:19" (1/3) ... [2021-02-24 04:28:21,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcfd2f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:28:21, skipping insertion in model container [2021-02-24 04:28:21,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:28:19" (2/3) ... [2021-02-24 04:28:21,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcfd2f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:28:21, skipping insertion in model container [2021-02-24 04:28:21,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:28:21" (3/3) ... [2021-02-24 04:28:21,665 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label43.c [2021-02-24 04:28:21,672 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:28:21,677 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:28:21,695 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:28:21,718 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:28:21,718 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:28:21,718 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:28:21,718 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:28:21,719 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:28:21,719 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:28:21,719 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:28:21,719 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:28:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-24 04:28:21,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-02-24 04:28:21,774 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:28:21,775 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] [2021-02-24 04:28:21,778 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:28:21,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:28:21,785 INFO L82 PathProgramCache]: Analyzing trace with hash 457141502, now seen corresponding path program 1 times [2021-02-24 04:28:21,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:28:21,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555267866] [2021-02-24 04:28:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:28:21,863 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:28:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:28:22,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:22,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:28:22,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:22,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:28:22,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:22,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:28:22,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:22,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:28:22,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:28:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:28:22,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:22,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:28:22,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:22,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:28:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:28:22,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555267866] [2021-02-24 04:28:22,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:28:22,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:28:22,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109230589] [2021-02-24 04:28:22,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:28:22,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:28:22,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:28:22,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:28:22,561 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 4 states. [2021-02-24 04:28:24,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:28:24,929 INFO L93 Difference]: Finished difference Result 1244 states and 1642 transitions. [2021-02-24 04:28:24,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:28:24,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2021-02-24 04:28:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:28:24,951 INFO L225 Difference]: With dead ends: 1244 [2021-02-24 04:28:24,952 INFO L226 Difference]: Without dead ends: 669 [2021-02-24 04:28:24,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:28:24,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2021-02-24 04:28:25,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 613. [2021-02-24 04:28:25,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2021-02-24 04:28:25,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 723 transitions. [2021-02-24 04:28:25,151 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 723 transitions. Word has length 164 [2021-02-24 04:28:25,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:28:25,152 INFO L480 AbstractCegarLoop]: Abstraction has 613 states and 723 transitions. [2021-02-24 04:28:25,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:28:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 723 transitions. [2021-02-24 04:28:25,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-02-24 04:28:25,158 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:28:25,158 INFO L422 BasicCegarLoop]: trace histogram [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 04:28:25,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:28:25,159 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:28:25,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:28:25,159 INFO L82 PathProgramCache]: Analyzing trace with hash -140485940, now seen corresponding path program 1 times [2021-02-24 04:28:25,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:28:25,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178001509] [2021-02-24 04:28:25,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:28:25,210 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:25,230 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:25,239 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:25,244 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:25,280 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:25,291 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:25,298 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:28:25,302 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:25,307 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:25,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:25,315 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:28:25,318 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:25,323 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:25,326 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:25,331 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:25,364 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:25,366 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:25,370 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:28:25,372 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:25,373 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:25,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:25,379 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:28:25,381 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:25,386 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:25,388 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:25,393 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:25,449 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:25,452 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:25,455 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:28:25,457 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:25,458 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:25,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:25,463 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:28:25,466 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:25,470 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:25,473 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:25,477 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:25,510 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:25,512 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:25,515 WARN L141 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size [2021-02-24 04:28:25,517 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:25,518 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:25,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:25,524 WARN L147 QuantifierPusher]: treesize reduction 9, result has 90.0 percent of original size 81 [2021-02-24 04:28:25,524 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:28:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:28:25,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:28:25,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:28:25,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:28:25,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:28:25,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:28:25,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:28:25,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:28:25,766 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size [2021-02-24 04:28:25,766 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size 23 [2021-02-24 04:28:25,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:28:25,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:28:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:28:25,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:28:25,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:25,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:28:26,005 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 04:28:26,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:28:26,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:28:26,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:28:26,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-02-24 04:28:26,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-02-24 04:28:26,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-24 04:28:26,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-02-24 04:28:26,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-24 04:28:26,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-02-24 04:28:26,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-02-24 04:28:26,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-02-24 04:28:26,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-02-24 04:28:26,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:26,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:26,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-02-24 04:28:26,570 WARN L141 QuantifierPusher]: treesize reduction 41, result has 66.7 percent of original size [2021-02-24 04:28:26,577 WARN L147 QuantifierPusher]: treesize reduction 41, result has 66.7 percent of original size 82 [2021-02-24 04:28:26,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:28:26,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:28:26,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:28:26,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:28:26,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-24 04:28:26,814 WARN L141 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-02-24 04:28:26,815 WARN L147 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size 29 [2021-02-24 04:28:26,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:28:26,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:26,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:28:26,923 WARN L141 QuantifierPusher]: treesize reduction 46, result has 2.1 percent of original size [2021-02-24 04:28:26,923 WARN L147 QuantifierPusher]: treesize reduction 46, result has 2.1 percent of original size 1 [2021-02-24 04:28:26,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178001509] [2021-02-24 04:28:26,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:28:26,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-24 04:28:26,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126508892] [2021-02-24 04:28:26,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 04:28:26,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:28:26,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 04:28:26,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2021-02-24 04:28:26,931 INFO L87 Difference]: Start difference. First operand 613 states and 723 transitions. Second operand 20 states. [2021-02-24 04:28:27,366 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 97 [2021-02-24 04:28:27,640 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 99 [2021-02-24 04:28:27,873 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 97 [2021-02-24 04:28:28,159 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 103 [2021-02-24 04:28:28,427 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 103 [2021-02-24 04:28:28,701 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 105 [2021-02-24 04:28:28,873 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-24 04:28:30,495 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 144 [2021-02-24 04:28:30,926 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 146 [2021-02-24 04:28:36,554 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 109 [2021-02-24 04:28:39,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:28:39,765 INFO L93 Difference]: Finished difference Result 2008 states and 2532 transitions. [2021-02-24 04:28:39,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-02-24 04:28:39,766 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 181 [2021-02-24 04:28:39,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:28:39,778 INFO L225 Difference]: With dead ends: 2008 [2021-02-24 04:28:39,779 INFO L226 Difference]: Without dead ends: 1427 [2021-02-24 04:28:39,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=441, Invalid=1721, Unknown=0, NotChecked=0, Total=2162 [2021-02-24 04:28:39,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2021-02-24 04:28:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1181. [2021-02-24 04:28:40,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1181 states. [2021-02-24 04:28:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1482 transitions. [2021-02-24 04:28:40,124 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1482 transitions. Word has length 181 [2021-02-24 04:28:40,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:28:40,125 INFO L480 AbstractCegarLoop]: Abstraction has 1181 states and 1482 transitions. [2021-02-24 04:28:40,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 04:28:40,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1482 transitions. [2021-02-24 04:28:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-02-24 04:28:40,131 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:28:40,131 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:40,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:28:40,132 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:28:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:28:40,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1626326358, now seen corresponding path program 1 times [2021-02-24 04:28:40,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:28:40,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055505577] [2021-02-24 04:28:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:28:40,152 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,157 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,159 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,163 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,195 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,198 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,201 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,202 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,204 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,208 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,210 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,215 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,217 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,221 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,252 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,254 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,257 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,258 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,260 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,264 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,266 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,271 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,274 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,278 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,308 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,310 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,312 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,313 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,315 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,320 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,322 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,326 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,329 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,334 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,365 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,367 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,370 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,371 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,372 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,378 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,380 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,384 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,386 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,390 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,420 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,422 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,425 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,426 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,427 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,436 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,438 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,442 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,444 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,448 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,477 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,481 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,483 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,484 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,485 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,490 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,492 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,496 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,498 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,503 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,534 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,536 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,539 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,541 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,542 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,548 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,549 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,554 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,556 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,565 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,596 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,597 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,600 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,601 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,602 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,606 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,607 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,613 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,615 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,623 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,652 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,654 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,656 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,657 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,658 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,662 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,664 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,667 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,669 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size [2021-02-24 04:28:40,676 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-02-24 04:28:40,706 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-24 04:28:40,708 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-24 04:28:40,710 WARN L141 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size [2021-02-24 04:28:40,711 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:28:40,713 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:40,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:40,718 WARN L147 QuantifierPusher]: treesize reduction 6, result has 93.3 percent of original size 84 [2021-02-24 04:28:40,719 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:28:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:28:40,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:28:40,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:28:40,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:28:40,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:28:40,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:28:40,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:28:40,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:28:40,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:28:40,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:28:40,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:28:40,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:28:40,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:28:40,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:28:40,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:40,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:28:41,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:28:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:28:41,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:28:41,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:28:41,263 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 04:28:41,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:41,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:41,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:28:41,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:28:41,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:41,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:28:41,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:28:41,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:41,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-24 04:28:41,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-24 04:28:41,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:41,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-24 04:28:41,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-24 04:28:41,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:41,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-24 04:28:41,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-24 04:28:41,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:41,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-24 04:28:41,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-24 04:28:41,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:28:41,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:28:41,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:28:41,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:28:41,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-24 04:28:41,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-24 04:28:41,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-02-24 04:28:41,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:28:41,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:28:41,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-02-24 04:28:41,862 WARN L141 QuantifierPusher]: treesize reduction 59, result has 52.8 percent of original size [2021-02-24 04:28:41,864 WARN L147 QuantifierPusher]: treesize reduction 59, result has 52.8 percent of original size 66 [2021-02-24 04:28:41,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:28:41,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:41,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:28:42,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:28:42,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:28:42,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:28:42,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:28:42,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:28:42,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:28:42,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:28:42,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:28:42,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:28:42,337 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-02-24 04:28:42,338 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size 28 [2021-02-24 04:28:42,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:28:42,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:28:42,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:28:42,453 WARN L141 QuantifierPusher]: treesize reduction 33, result has 2.9 percent of original size [2021-02-24 04:28:42,453 WARN L147 QuantifierPusher]: treesize reduction 33, result has 2.9 percent of original size 1 [2021-02-24 04:28:42,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055505577] [2021-02-24 04:28:42,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:28:42,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-24 04:28:42,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458994860] [2021-02-24 04:28:42,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-24 04:28:42,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:28:42,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-24 04:28:42,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2021-02-24 04:28:42,457 INFO L87 Difference]: Start difference. First operand 1181 states and 1482 transitions. Second operand 25 states. [2021-02-24 04:28:42,932 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-24 04:28:43,166 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2021-02-24 04:28:43,392 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-24 04:28:43,651 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 103 [2021-02-24 04:28:43,905 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 103 [2021-02-24 04:28:44,165 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2021-02-24 04:28:44,515 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124 [2021-02-24 04:28:44,711 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-02-24 04:28:46,206 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-02-24 04:28:46,397 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-02-24 04:28:46,701 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-24 04:28:52,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:28:52,693 INFO L93 Difference]: Finished difference Result 3221 states and 4132 transitions. [2021-02-24 04:28:52,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-24 04:28:52,694 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 186 [2021-02-24 04:28:52,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:28:52,711 INFO L225 Difference]: With dead ends: 3221 [2021-02-24 04:28:52,711 INFO L226 Difference]: Without dead ends: 2072 [2021-02-24 04:28:52,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=363, Invalid=1707, Unknown=0, NotChecked=0, Total=2070 [2021-02-24 04:28:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2021-02-24 04:28:53,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 1692. [2021-02-24 04:28:53,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1692 states. [2021-02-24 04:28:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2101 transitions. [2021-02-24 04:28:53,267 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2101 transitions. Word has length 186 [2021-02-24 04:28:53,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:28:53,267 INFO L480 AbstractCegarLoop]: Abstraction has 1692 states and 2101 transitions. [2021-02-24 04:28:53,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-24 04:28:53,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2101 transitions. [2021-02-24 04:28:53,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-02-24 04:28:53,277 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:28:53,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:53,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-24 04:28:53,277 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:28:53,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:28:53,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1488908224, now seen corresponding path program 1 times [2021-02-24 04:28:53,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:28:53,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598986149] [2021-02-24 04:28:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:28:53,305 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-02-24 04:28:59,578 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 325650 conjuctions. This might take some time...