/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-b7b32d2 [2021-02-22 02:06:27,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:06:27,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:06:27,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:06:27,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:06:27,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:06:27,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:06:27,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:06:27,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:06:27,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:06:27,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:06:27,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:06:27,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:06:27,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:06:27,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:06:27,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:06:27,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:06:27,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:06:27,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:06:27,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:06:27,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:06:27,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:06:27,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:06:27,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:06:27,489 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:06:27,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:06:27,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:06:27,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:06:27,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:06:27,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:06:27,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:06:27,490 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:06:27,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:06:27,491 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:06:27,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:06:27,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:06:27,491 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:06:27,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:06:27,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:06:27,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:06:27,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:06:27,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:06:27,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:06:27,493 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:06:27,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:06:27,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:06:27,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:06:27,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:06:27,903 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:06:27,906 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:06:27,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label12.c [2021-02-22 02:06:27,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c31543d16/79723f5fd69742babb21fc0496fecc0c/FLAG43d800755 [2021-02-22 02:06:28,686 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:06:28,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label12.c [2021-02-22 02:06:28,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c31543d16/79723f5fd69742babb21fc0496fecc0c/FLAG43d800755 [2021-02-22 02:06:28,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c31543d16/79723f5fd69742babb21fc0496fecc0c [2021-02-22 02:06:28,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:06:28,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:06:28,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:06:28,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:06:28,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:06:28,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:06:28" (1/1) ... [2021-02-22 02:06:28,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1284bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:28, skipping insertion in model container [2021-02-22 02:06:28,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:06:28" (1/1) ... [2021-02-22 02:06:28,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:06:28,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:06:29,366 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] [2021-02-22 02:06:29,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:06:29,415 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:06:29,494 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] [2021-02-22 02:06:29,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:06:29,561 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:06:29,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29 WrapperNode [2021-02-22 02:06:29,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:06:29,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:06:29,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:06:29,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:06:29,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29" (1/1) ... [2021-02-22 02:06:29,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29" (1/1) ... [2021-02-22 02:06:29,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29" (1/1) ... [2021-02-22 02:06:29,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29" (1/1) ... [2021-02-22 02:06:29,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29" (1/1) ... [2021-02-22 02:06:29,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29" (1/1) ... [2021-02-22 02:06:29,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29" (1/1) ... [2021-02-22 02:06:29,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:06:29,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:06:29,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:06:29,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:06:29,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29" (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 [2021-02-22 02:06:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:06:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:06:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:06:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-22 02:06:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:06:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-22 02:06:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:06:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:06:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:06:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:06:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:06:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:06:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:06:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:06:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:06:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:06:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:06:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:06:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:06:31,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:06:31,169 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:06:31,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:06:31 BoogieIcfgContainer [2021-02-22 02:06:31,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:06:31,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:06:31,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:06:31,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:06:31,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:06:28" (1/3) ... [2021-02-22 02:06:31,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e37c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:06:31, skipping insertion in model container [2021-02-22 02:06:31,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:06:29" (2/3) ... [2021-02-22 02:06:31,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e37c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:06:31, skipping insertion in model container [2021-02-22 02:06:31,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:06:31" (3/3) ... [2021-02-22 02:06:31,180 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label12.c [2021-02-22 02:06:31,187 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:06:31,192 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:06:31,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:06:31,233 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:06:31,233 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:06:31,234 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:06:31,234 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:06:31,234 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:06:31,234 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:06:31,234 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:06:31,234 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:06:31,260 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-22 02:06:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-02-22 02:06:31,284 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:06:31,285 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] [2021-02-22 02:06:31,285 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:06:31,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:06:31,292 INFO L82 PathProgramCache]: Analyzing trace with hash 280204825, now seen corresponding path program 1 times [2021-02-22 02:06:31,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:06:31,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217698874] [2021-02-22 02:06:31,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:06:31,397 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:06:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:06:31,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:31,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:06:31,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:31,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:06:31,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:31,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:06:31,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:31,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:06:31,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:06:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:06:31,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:31,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:06:31,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:31,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:06:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:06:32,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217698874] [2021-02-22 02:06:32,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:06:32,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:06:32,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950602638] [2021-02-22 02:06:32,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:06:32,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:06:32,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:06:32,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:06:32,080 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-22 02:06:34,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:06:34,660 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-22 02:06:34,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:06:34,663 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2021-02-22 02:06:34,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:06:34,683 INFO L225 Difference]: With dead ends: 1215 [2021-02-22 02:06:34,683 INFO L226 Difference]: Without dead ends: 636 [2021-02-22 02:06:34,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:06:34,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-22 02:06:34,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-22 02:06:34,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-22 02:06:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-22 02:06:34,894 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 152 [2021-02-22 02:06:34,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:06:34,895 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-22 02:06:34,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:06:34,896 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-22 02:06:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-02-22 02:06:34,902 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:06:34,902 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] [2021-02-22 02:06:34,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:06:34,903 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:06:34,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:06:34,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1251954511, now seen corresponding path program 1 times [2021-02-22 02:06:34,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:06:34,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19181632] [2021-02-22 02:06:34,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:06:34,963 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:34,985 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:34,992 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:34,999 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:35,032 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:06:35,045 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:06:35,055 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-22 02:06:35,062 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:06:35,068 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:35,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:06:35,079 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-22 02:06:35,082 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:35,088 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:35,091 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:35,097 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:35,135 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:06:35,142 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:06:35,151 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-22 02:06:35,156 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:06:35,158 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:35,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:06:35,173 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-22 02:06:35,174 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:06:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:06:35,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:06:35,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:06:35,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:06:35,470 WARN L141 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-02-22 02:06:35,472 WARN L147 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size 8 [2021-02-22 02:06:35,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:06:35,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:06:35,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:06:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:06:35,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:06:35,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:06:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:06:35,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 02:06:35,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:35,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:06:35,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-22 02:06:35,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:06:35,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:06:35,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:06:35,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:06:35,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:06:35,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:06:35,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-02-22 02:06:35,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:35,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 02:06:36,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:36,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-22 02:06:36,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:36,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-02-22 02:06:36,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:36,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-02-22 02:06:36,361 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-22 02:06:36,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:36,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-02-22 02:06:36,545 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-22 02:06:36,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:36,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-02-22 02:06:36,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:36,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-22 02:06:36,789 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-02-22 02:06:36,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:36,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-02-22 02:06:37,061 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-02-22 02:06:37,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:37,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-22 02:06:37,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:37,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-02-22 02:06:37,408 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-02-22 02:06:37,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:37,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-02-22 02:06:37,768 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-02-22 02:06:37,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:37,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-02-22 02:06:37,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:37,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-02-22 02:06:37,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:37,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-02-22 02:06:37,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:37,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-02-22 02:06:38,351 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-22 02:06:38,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-22 02:06:38,444 WARN L141 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size [2021-02-22 02:06:38,445 WARN L147 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size 42 [2021-02-22 02:06:38,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:06:38,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:06:38,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:38,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:06:38,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:06:38,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:06:38,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:06:38,824 WARN L141 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size [2021-02-22 02:06:38,825 WARN L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-02-22 02:06:38,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:06:38,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:38,948 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-22 02:06:38,949 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-22 02:06:38,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:38,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:06:39,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:39,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:06:39,060 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-22 02:06:39,061 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-22 02:06:39,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19181632] [2021-02-22 02:06:39,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:06:39,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-22 02:06:39,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775893424] [2021-02-22 02:06:39,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-22 02:06:39,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:06:39,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-22 02:06:39,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2021-02-22 02:06:39,069 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 30 states. [2021-02-22 02:06:39,473 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:06:39,692 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-22 02:06:39,893 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:06:40,094 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:06:40,309 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:06:40,525 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-22 02:06:40,842 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2021-02-22 02:06:41,252 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-22 02:06:41,406 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-22 02:06:41,565 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-22 02:06:41,984 WARN L202 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-22 02:06:42,601 WARN L202 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2021-02-22 02:06:43,129 WARN L202 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2021-02-22 02:06:43,469 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-22 02:06:43,981 WARN L202 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2021-02-22 02:06:44,590 WARN L202 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-22 02:06:44,979 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-02-22 02:06:45,727 WARN L202 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-22 02:06:47,000 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:06:47,243 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-22 02:06:47,509 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-22 02:06:47,761 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-22 02:06:48,139 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-22 02:06:48,481 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-02-22 02:06:48,894 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-22 02:06:49,256 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-22 02:06:49,808 WARN L202 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:06:54,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:06:54,663 INFO L93 Difference]: Finished difference Result 1723 states and 2177 transitions. [2021-02-22 02:06:54,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-02-22 02:06:54,664 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 186 [2021-02-22 02:06:54,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:06:54,674 INFO L225 Difference]: With dead ends: 1723 [2021-02-22 02:06:54,675 INFO L226 Difference]: Without dead ends: 1130 [2021-02-22 02:06:54,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1437 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=976, Invalid=3716, Unknown=0, NotChecked=0, Total=4692 [2021-02-22 02:06:54,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2021-02-22 02:06:54,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1053. [2021-02-22 02:06:54,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2021-02-22 02:06:54,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1327 transitions. [2021-02-22 02:06:54,934 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1327 transitions. Word has length 186 [2021-02-22 02:06:54,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:06:54,936 INFO L480 AbstractCegarLoop]: Abstraction has 1053 states and 1327 transitions. [2021-02-22 02:06:54,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-22 02:06:54,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1327 transitions. [2021-02-22 02:06:54,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-02-22 02:06:54,945 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:06:54,946 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] [2021-02-22 02:06:54,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:06:54,946 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:06:54,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:06:54,950 INFO L82 PathProgramCache]: Analyzing trace with hash -544915757, now seen corresponding path program 1 times [2021-02-22 02:06:54,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:06:54,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969630056] [2021-02-22 02:06:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:06:54,976 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:54,983 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:54,985 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:54,990 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:55,016 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:06:55,023 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:06:55,029 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:06:55,032 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:06:55,035 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:06:55,040 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:06:55,045 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:55,053 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:55,055 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:55,058 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:55,086 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:06:55,088 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:06:55,091 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:06:55,092 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:06:55,094 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:06:55,098 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:06:55,099 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:55,103 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:55,104 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:55,108 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:55,138 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:06:55,140 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:06:55,142 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:06:55,143 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:06:55,144 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:06:55,149 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:06:55,150 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:55,154 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:55,155 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:06:55,159 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:06:55,185 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:06:55,187 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:06:55,189 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size [2021-02-22 02:06:55,190 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:06:55,191 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:06:55,196 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.1 percent of original size 77 [2021-02-22 02:06:55,196 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:06:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:06:55,320 WARN L141 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size [2021-02-22 02:06:55,321 WARN L147 QuantifierPusher]: treesize reduction 17, result has 32.0 percent of original size 8 [2021-02-22 02:06:55,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:06:55,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:06:55,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:06:55,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:06:55,362 WARN L141 QuantifierPusher]: treesize reduction 16, result has 42.9 percent of original size [2021-02-22 02:06:55,362 WARN L147 QuantifierPusher]: treesize reduction 16, result has 42.9 percent of original size 12 [2021-02-22 02:06:55,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:06:55,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:06:55,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:06:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:06:55,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:06:55,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:06:55,488 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-22 02:06:55,489 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-22 02:06:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:06:55,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:06:55,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-22 02:06:55,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-22 02:06:55,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-22 02:06:55,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-22 02:06:55,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:06:55,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:06:55,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-22 02:06:55,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-02-22 02:06:55,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-02-22 02:06:55,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-22 02:06:55,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-02-22 02:06:55,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-22 02:06:55,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:55,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:55,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:55,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-02-22 02:06:56,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:56,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:56,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-02-22 02:06:56,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:56,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:56,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-02-22 02:06:56,329 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-02-22 02:06:56,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:56,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:56,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-22 02:06:56,525 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-22 02:06:56,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:56,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:56,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-22 02:06:56,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:56,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:56,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-22 02:06:56,829 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2021-02-22 02:06:56,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:56,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:56,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:56,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-02-22 02:06:57,114 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2021-02-22 02:06:57,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:57,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:57,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-02-22 02:06:57,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:57,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:57,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-02-22 02:06:57,511 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2021-02-22 02:06:57,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:57,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:57,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-02-22 02:06:57,871 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2021-02-22 02:06:57,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:57,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:57,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 300 [2021-02-22 02:06:57,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:57,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:57,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:57,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-02-22 02:06:58,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:58,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:58,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:58,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:58,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 309 [2021-02-22 02:06:58,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:58,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:58,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:58,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:58,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-02-22 02:06:58,546 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2021-02-22 02:06:58,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:58,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:58,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:58,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:58,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-02-22 02:06:58,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:58,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:58,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:58,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:58,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 315 [2021-02-22 02:06:59,066 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2021-02-22 02:06:59,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:59,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:59,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-02-22 02:06:59,559 WARN L202 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2021-02-22 02:06:59,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:59,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:59,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-22 02:06:59,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:59,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:59,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-02-22 02:06:59,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:59,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:59,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 392 [2021-02-22 02:06:59,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:06:59,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:06:59,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:06:59,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 372 [2021-02-22 02:06:59,999 WARN L141 QuantifierPusher]: treesize reduction 305, result has 17.3 percent of original size [2021-02-22 02:07:00,002 WARN L147 QuantifierPusher]: treesize reduction 305, result has 17.3 percent of original size 64 [2021-02-22 02:07:00,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:07:00,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:07:00,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:07:00,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:07:00,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:07:00,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:07:00,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:07:00,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:07:00,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:07:00,326 WARN L141 QuantifierPusher]: treesize reduction -2, result has 106.9 percent of original size [2021-02-22 02:07:00,327 WARN L147 QuantifierPusher]: treesize reduction -2, result has 106.9 percent of original size 31 [2021-02-22 02:07:00,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:07:00,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:07:00,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:07:00,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:07:00,465 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size [2021-02-22 02:07:00,470 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.8 percent of original size 28 [2021-02-22 02:07:00,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:07:00,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:07:00,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:07:00,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:07:00,672 WARN L141 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-02-22 02:07:00,673 WARN L147 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size 1 [2021-02-22 02:07:00,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969630056] [2021-02-22 02:07:00,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:07:00,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-02-22 02:07:00,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634823930] [2021-02-22 02:07:00,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-02-22 02:07:00,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:07:00,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-02-22 02:07:00,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2021-02-22 02:07:00,676 INFO L87 Difference]: Start difference. First operand 1053 states and 1327 transitions. Second operand 33 states. [2021-02-22 02:07:01,131 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2021-02-22 02:07:01,366 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 95 [2021-02-22 02:07:01,578 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2021-02-22 02:07:01,817 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 97 [2021-02-22 02:07:02,055 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 97 [2021-02-22 02:07:02,317 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2021-02-22 02:07:02,671 WARN L202 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 117 [2021-02-22 02:07:03,114 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 123 [2021-02-22 02:07:03,287 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2021-02-22 02:07:03,477 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-02-22 02:07:03,893 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 129 [2021-02-22 02:07:04,529 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 135 [2021-02-22 02:07:05,127 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 136 [2021-02-22 02:07:05,277 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:07:05,896 WARN L202 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 139 [2021-02-22 02:07:06,266 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-02-22 02:07:06,904 WARN L202 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 140 [2021-02-22 02:07:07,232 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-02-22 02:07:08,135 WARN L202 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 144 [2021-02-22 02:07:08,933 WARN L202 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 145 [2021-02-22 02:07:09,727 WARN L202 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 146 [2021-02-22 02:07:10,034 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-22 02:07:11,308 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-02-22 02:07:11,515 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-22 02:07:11,774 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-02-22 02:07:12,087 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-22 02:07:12,417 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:07:12,835 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-02-22 02:07:13,184 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-22 02:07:13,645 WARN L202 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-22 02:07:14,053 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-22 02:07:14,875 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-22 02:07:15,460 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-02-22 02:07:15,981 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-02-22 02:07:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:07:22,202 INFO L93 Difference]: Finished difference Result 2981 states and 3864 transitions. [2021-02-22 02:07:22,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-02-22 02:07:22,202 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 190 [2021-02-22 02:07:22,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:07:22,217 INFO L225 Difference]: With dead ends: 2981 [2021-02-22 02:07:22,217 INFO L226 Difference]: Without dead ends: 1958 [2021-02-22 02:07:22,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 8 SyntacticMatches, 11 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1982 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=1355, Invalid=4807, Unknown=0, NotChecked=0, Total=6162 [2021-02-22 02:07:22,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2021-02-22 02:07:22,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1726. [2021-02-22 02:07:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1726 states. [2021-02-22 02:07:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2207 transitions. [2021-02-22 02:07:22,743 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2207 transitions. Word has length 190 [2021-02-22 02:07:22,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:07:22,743 INFO L480 AbstractCegarLoop]: Abstraction has 1726 states and 2207 transitions. [2021-02-22 02:07:22,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2021-02-22 02:07:22,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2207 transitions. [2021-02-22 02:07:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-02-22 02:07:22,752 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:07:22,752 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] [2021-02-22 02:07:22,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 02:07:22,753 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:07:22,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:07:22,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1927792369, now seen corresponding path program 1 times [2021-02-22 02:07:22,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:07:22,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285432363] [2021-02-22 02:07:22,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:07:22,849 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15