/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_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:30:54,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:30:54,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:30:54,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:30:54,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:30:54,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:30:54,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:30:54,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:30:54,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:30:54,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:30:54,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:30:54,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:30:54,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:30:54,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:30:54,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:30:54,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:30:54,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:30:54,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:30:54,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:30:54,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:30:54,765 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 04:30:54,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:30:54,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:30:54,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:30:54,780 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:30:54,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:30:54,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:30:54,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:30:54,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:30:54,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:30:54,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:30:54,782 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:30:54,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:30:54,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:30:54,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:30:54,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:30:54,783 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:30:54,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:30:54,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:30:54,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:30:54,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:30:54,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:30:54,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:30:54,785 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:30:54,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:30:55,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:30:55,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:30:55,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:30:55,197 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:30:55,200 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:30:55,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label12.c [2021-02-24 04:30:55,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a89f8c85/8486ae526bf048dab2fe03dfd54c3a45/FLAG01b0def2d [2021-02-24 04:30:56,068 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:30:56,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label12.c [2021-02-24 04:30:56,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a89f8c85/8486ae526bf048dab2fe03dfd54c3a45/FLAG01b0def2d [2021-02-24 04:30:56,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a89f8c85/8486ae526bf048dab2fe03dfd54c3a45 [2021-02-24 04:30:56,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:30:56,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:30:56,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:30:56,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:30:56,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:30:56,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:30:56" (1/1) ... [2021-02-24 04:30:56,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3836afcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:56, skipping insertion in model container [2021-02-24 04:30:56,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:30:56" (1/1) ... [2021-02-24 04:30:56,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:30:56,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:30:56,868 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_label12.c[18829,18842] [2021-02-24 04:30:56,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:30:56,940 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:30:57,114 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_label12.c[18829,18842] [2021-02-24 04:30:57,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:30:57,160 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:30:57,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57 WrapperNode [2021-02-24 04:30:57,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:30:57,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:30:57,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:30:57,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:30:57,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57" (1/1) ... [2021-02-24 04:30:57,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57" (1/1) ... [2021-02-24 04:30:57,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57" (1/1) ... [2021-02-24 04:30:57,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57" (1/1) ... [2021-02-24 04:30:57,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57" (1/1) ... [2021-02-24 04:30:57,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57" (1/1) ... [2021-02-24 04:30:57,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57" (1/1) ... [2021-02-24 04:30:57,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:30:57,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:30:57,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:30:57,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:30:57,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57" (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 04:30:57,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:30:57,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:30:57,440 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:30:57,440 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 04:30:57,440 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:30:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 04:30:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:30:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:30:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:30:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:30:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:30:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:30:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:30:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:30:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:30:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:30:57,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:30:57,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:30:57,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:30:59,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:30:59,262 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:30:59,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:30:59 BoogieIcfgContainer [2021-02-24 04:30:59,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:30:59,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:30:59,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:30:59,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:30:59,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:30:56" (1/3) ... [2021-02-24 04:30:59,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613accbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:30:59, skipping insertion in model container [2021-02-24 04:30:59,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:30:57" (2/3) ... [2021-02-24 04:30:59,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613accbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:30:59, skipping insertion in model container [2021-02-24 04:30:59,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:30:59" (3/3) ... [2021-02-24 04:30:59,275 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label12.c [2021-02-24 04:30:59,284 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:30:59,289 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:30:59,308 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:30:59,355 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:30:59,356 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:30:59,356 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:30:59,356 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:30:59,356 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:30:59,356 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:30:59,356 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:30:59,357 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:30:59,384 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-24 04:30:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-02-24 04:30:59,410 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:30:59,411 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] [2021-02-24 04:30:59,412 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:30:59,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:30:59,419 INFO L82 PathProgramCache]: Analyzing trace with hash 280204825, now seen corresponding path program 1 times [2021-02-24 04:30:59,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:30:59,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564187753] [2021-02-24 04:30:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:30:59,518 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:30:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:30:59,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:30:59,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:31:00,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:00,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:31:00,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:00,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:31:00,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:00,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:31:00,165 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-24 04:31:00,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:31:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:31:00,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:00,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:31:00,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:00,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:31:00,262 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 04:31:00,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564187753] [2021-02-24 04:31:00,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:31:00,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:31:00,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151505668] [2021-02-24 04:31:00,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:31:00,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:31:00,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:31:00,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:31:00,291 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-24 04:31:00,589 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-24 04:31:03,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:31:03,206 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-24 04:31:03,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:31:03,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2021-02-24 04:31:03,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:31:03,230 INFO L225 Difference]: With dead ends: 1215 [2021-02-24 04:31:03,230 INFO L226 Difference]: Without dead ends: 636 [2021-02-24 04:31:03,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:31:03,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-24 04:31:03,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-24 04:31:03,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-24 04:31:03,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-24 04:31:03,437 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 152 [2021-02-24 04:31:03,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:31:03,439 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-24 04:31:03,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:31:03,439 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-24 04:31:03,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-02-24 04:31:03,445 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:31:03,446 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] [2021-02-24 04:31:03,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:31:03,447 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:31:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:31:03,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1251954511, now seen corresponding path program 1 times [2021-02-24 04:31:03,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:31:03,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680484538] [2021-02-24 04:31:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:31:03,528 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:03,556 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:03,566 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:03,575 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:03,618 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:31:03,635 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:31:03,642 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-24 04:31:03,648 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:31:03,654 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:03,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:03,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:03,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:31:03,671 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-24 04:31:03,675 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:03,680 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:03,684 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:03,689 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:03,720 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:31:03,723 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:31:03,728 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-24 04:31:03,730 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:31:03,731 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:03,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:03,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:03,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:31:03,738 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-24 04:31:03,739 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:31:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:31:04,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:31:04,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:31:04,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:31:04,043 WARN L141 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-02-24 04:31:04,045 WARN L147 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size 8 [2021-02-24 04:31:04,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:31:04,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:31:04,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:31:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:31:04,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:31:04,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:31:04,253 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 04:31:04,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:31:04,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:04,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:31:04,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-24 04:31:04,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:31:04,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:31:04,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:31:04,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:31:04,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:31:04,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:31:04,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-02-24 04:31:04,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:31:04,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:31:04,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-02-24 04:31:04,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-02-24 04:31:04,964 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-24 04:31:04,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:04,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-02-24 04:31:05,141 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-24 04:31:05,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:05,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-02-24 04:31:05,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:05,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-24 04:31:05,398 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-02-24 04:31:05,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:05,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-02-24 04:31:05,654 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-02-24 04:31:05,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:05,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-24 04:31:05,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:05,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-02-24 04:31:06,017 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-02-24 04:31:06,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:06,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-02-24 04:31:06,368 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-02-24 04:31:06,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:06,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-02-24 04:31:06,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:06,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-02-24 04:31:06,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:06,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-02-24 04:31:06,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:06,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-02-24 04:31:07,018 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-24 04:31:07,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-24 04:31:07,097 WARN L141 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size [2021-02-24 04:31:07,098 WARN L147 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size 42 [2021-02-24 04:31:07,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:31:07,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:31:07,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:07,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:31:07,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:31:07,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:31:07,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:31:07,510 WARN L141 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size [2021-02-24 04:31:07,511 WARN L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-02-24 04:31:07,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:31:07,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:07,624 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-24 04:31:07,625 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-24 04:31:07,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:31:07,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:07,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:31:07,763 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-24 04:31:07,764 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-24 04:31:07,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680484538] [2021-02-24 04:31:07,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:31:07,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-24 04:31:07,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191168661] [2021-02-24 04:31:07,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-24 04:31:07,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:31:07,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-24 04:31:07,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2021-02-24 04:31:07,768 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 30 states. [2021-02-24 04:31:08,148 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:31:08,351 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-24 04:31:08,558 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:31:08,805 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:31:09,037 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:31:09,277 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-24 04:31:09,600 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2021-02-24 04:31:10,051 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-24 04:31:10,216 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-24 04:31:10,394 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-24 04:31:10,806 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-24 04:31:11,413 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2021-02-24 04:31:11,994 WARN L202 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2021-02-24 04:31:12,345 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-24 04:31:12,904 WARN L202 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2021-02-24 04:31:13,544 WARN L202 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-24 04:31:13,979 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-02-24 04:31:14,770 WARN L202 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:31:15,034 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:31:15,847 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:31:16,118 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:31:16,350 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-24 04:31:16,610 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-24 04:31:16,889 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-24 04:31:17,267 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-24 04:31:17,615 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-02-24 04:31:18,049 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-24 04:31:18,446 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-24 04:31:19,050 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:31:24,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:31:24,085 INFO L93 Difference]: Finished difference Result 1723 states and 2177 transitions. [2021-02-24 04:31:24,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-02-24 04:31:24,086 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 186 [2021-02-24 04:31:24,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:31:24,096 INFO L225 Difference]: With dead ends: 1723 [2021-02-24 04:31:24,096 INFO L226 Difference]: Without dead ends: 1130 [2021-02-24 04:31:24,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1437 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=976, Invalid=3716, Unknown=0, NotChecked=0, Total=4692 [2021-02-24 04:31:24,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2021-02-24 04:31:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1053. [2021-02-24 04:31:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2021-02-24 04:31:24,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1327 transitions. [2021-02-24 04:31:24,411 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1327 transitions. Word has length 186 [2021-02-24 04:31:24,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:31:24,412 INFO L480 AbstractCegarLoop]: Abstraction has 1053 states and 1327 transitions. [2021-02-24 04:31:24,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-24 04:31:24,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1327 transitions. [2021-02-24 04:31:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-02-24 04:31:24,417 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:31:24,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:24,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:31:24,418 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:31:24,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:31:24,419 INFO L82 PathProgramCache]: Analyzing trace with hash -544915757, now seen corresponding path program 1 times [2021-02-24 04:31:24,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:31:24,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454300761] [2021-02-24 04:31:24,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:31:24,440 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:24,444 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:24,446 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:24,450 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:24,478 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:31:24,480 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:31:24,483 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-24 04:31:24,484 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:31:24,486 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:24,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:31:24,492 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-24 04:31:24,494 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:24,498 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:24,500 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:24,504 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:24,531 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:31:24,533 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:31:24,535 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-24 04:31:24,537 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:31:24,538 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:24,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:31:24,543 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-24 04:31:24,545 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:24,548 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:24,551 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:24,554 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:24,581 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:31:24,583 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:31:24,585 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-24 04:31:24,586 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:31:24,587 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:24,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:31:24,592 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-24 04:31:24,594 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:24,597 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:24,600 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:31:24,603 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:31:24,631 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:31:24,634 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:31:24,637 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-24 04:31:24,639 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:31:24,640 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:24,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:31:24,645 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-24 04:31:24,646 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:31:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:31:24,862 WARN L141 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-02-24 04:31:24,863 WARN L147 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size 8 [2021-02-24 04:31:24,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:31:24,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,879 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:31:24,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:31:24,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:31:24,898 WARN L141 QuantifierPusher]: treesize reduction 16, result has 42.9 percent of original size [2021-02-24 04:31:24,901 WARN L147 QuantifierPusher]: treesize reduction 16, result has 42.9 percent of original size 12 [2021-02-24 04:31:24,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-24 04:31:24,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:24,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:31:24,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:31:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:31:25,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:31:25,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:31:25,023 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-24 04:31:25,024 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-24 04:31:25,156 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 04:31:25,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,165 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-24 04:31:25,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:31:25,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:31:25,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-24 04:31:25,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:31:25,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:31:25,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:31:25,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-24 04:31:25,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-02-24 04:31:25,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-02-24 04:31:25,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:31:25,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-02-24 04:31:25,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-24 04:31:25,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-02-24 04:31:25,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-02-24 04:31:25,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-02-24 04:31:25,938 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-02-24 04:31:25,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:25,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:25,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:25,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-24 04:31:26,147 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-24 04:31:26,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:26,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:26,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-24 04:31:26,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:26,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:26,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-24 04:31:26,471 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2021-02-24 04:31:26,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:26,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:26,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-02-24 04:31:26,761 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2021-02-24 04:31:26,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:26,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:26,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-02-24 04:31:26,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:26,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:26,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:26,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-02-24 04:31:27,190 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2021-02-24 04:31:27,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:27,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:27,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-02-24 04:31:27,551 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2021-02-24 04:31:27,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:27,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:27,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-02-24 04:31:27,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:27,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:27,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-02-24 04:31:27,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:27,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:27,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 309 [2021-02-24 04:31:27,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:27,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:27,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:27,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-02-24 04:31:28,262 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2021-02-24 04:31:28,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:28,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:28,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:28,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:28,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-02-24 04:31:28,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:28,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:28,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:28,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:28,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 315 [2021-02-24 04:31:28,805 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2021-02-24 04:31:28,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:28,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:28,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:28,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:28,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-02-24 04:31:29,300 WARN L202 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2021-02-24 04:31:29,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:29,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:29,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-24 04:31:29,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:29,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:29,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-02-24 04:31:29,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:29,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:29,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-02-24 04:31:29,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:29,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:31:29,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 372 [2021-02-24 04:31:29,750 WARN L141 QuantifierPusher]: treesize reduction 305, result has 17.3 percent of original size [2021-02-24 04:31:29,752 WARN L147 QuantifierPusher]: treesize reduction 305, result has 17.3 percent of original size 64 [2021-02-24 04:31:29,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:31:29,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:31:29,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:31:29,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:29,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:31:29,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:31:30,067 WARN L141 QuantifierPusher]: treesize reduction -2, result has 106.9 percent of original size [2021-02-24 04:31:30,068 WARN L147 QuantifierPusher]: treesize reduction -2, result has 106.9 percent of original size 31 [2021-02-24 04:31:30,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:30,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:31:30,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:30,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:31:30,195 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-02-24 04:31:30,196 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size 28 [2021-02-24 04:31:30,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:30,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:31:30,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:31:30,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:31:30,396 WARN L141 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-02-24 04:31:30,397 WARN L147 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size 1 [2021-02-24 04:31:30,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454300761] [2021-02-24 04:31:30,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:31:30,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-02-24 04:31:30,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462401754] [2021-02-24 04:31:30,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-02-24 04:31:30,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:31:30,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-02-24 04:31:30,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2021-02-24 04:31:30,401 INFO L87 Difference]: Start difference. First operand 1053 states and 1327 transitions. Second operand 33 states. [2021-02-24 04:31:30,851 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2021-02-24 04:31:31,064 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 95 [2021-02-24 04:31:31,287 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2021-02-24 04:31:31,528 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 97 [2021-02-24 04:31:31,771 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 97 [2021-02-24 04:31:32,032 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2021-02-24 04:31:32,368 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 117 [2021-02-24 04:31:32,810 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 123 [2021-02-24 04:31:32,979 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2021-02-24 04:31:33,176 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-02-24 04:31:33,625 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 129 [2021-02-24 04:31:34,268 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 135 [2021-02-24 04:31:34,869 WARN L202 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 136 [2021-02-24 04:31:35,021 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-24 04:31:35,652 WARN L202 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 139 [2021-02-24 04:31:36,026 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-24 04:31:36,664 WARN L202 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 140 [2021-02-24 04:31:37,004 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-24 04:31:37,927 WARN L202 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 144 [2021-02-24 04:31:38,766 WARN L202 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 145 [2021-02-24 04:31:39,576 WARN L202 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 146 [2021-02-24 04:31:41,453 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-24 04:31:41,733 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-02-24 04:31:42,114 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-24 04:31:42,486 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:31:42,905 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-24 04:31:43,274 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:31:43,775 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-24 04:31:44,221 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-24 04:31:45,111 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-24 04:31:45,772 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-02-24 04:31:46,348 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-02-24 04:31:53,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:31:53,374 INFO L93 Difference]: Finished difference Result 2981 states and 3864 transitions. [2021-02-24 04:31:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-02-24 04:31:53,375 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 190 [2021-02-24 04:31:53,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:31:53,390 INFO L225 Difference]: With dead ends: 2981 [2021-02-24 04:31:53,391 INFO L226 Difference]: Without dead ends: 1958 [2021-02-24 04:31:53,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 8 SyntacticMatches, 11 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1982 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=1355, Invalid=4807, Unknown=0, NotChecked=0, Total=6162 [2021-02-24 04:31:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2021-02-24 04:31:53,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1726. [2021-02-24 04:31:53,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1726 states. [2021-02-24 04:31:53,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2207 transitions. [2021-02-24 04:31:53,951 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2207 transitions. Word has length 190 [2021-02-24 04:31:53,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:31:53,951 INFO L480 AbstractCegarLoop]: Abstraction has 1726 states and 2207 transitions. [2021-02-24 04:31:53,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2021-02-24 04:31:53,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2207 transitions. [2021-02-24 04:31:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-02-24 04:31:53,964 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:31:53,964 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-02-24 04:31:53,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:31:53,965 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:31:53,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:31:53,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1927792369, now seen corresponding path program 1 times [2021-02-24 04:31:53,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:31:53,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660402235] [2021-02-24 04:31:53,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:31:54,058 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2021-02-24 04:32:11,260 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 895488 conjuctions. This might take some time...