/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_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:35:32,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:35:32,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:35:32,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:35:32,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:35:32,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:35:32,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:35:32,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:35:32,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:35:32,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:35:32,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:35:32,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:35:32,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:35:32,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:35:32,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:35:32,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:35:32,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:35:32,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:35:32,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:35:32,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:35:32,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:35:32,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:35:32,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:35:32,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:35:32,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:35:32,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:35:32,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:35:32,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:35:32,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:35:32,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:35:32,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:35:32,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:35:32,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:35:32,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:35:32,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:35:32,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:35:32,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:35:32,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:35:32,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:35:32,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:35:32,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:35:32,240 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 04:35:32,261 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:35:32,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:35:32,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:35:32,264 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:35:32,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:35:32,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:35:32,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:35:32,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:35:32,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:35:32,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:35:32,266 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:35:32,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:35:32,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:35:32,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:35:32,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:35:32,268 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:35:32,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:35:32,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:35:32,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:35:32,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:35:32,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:35:32,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:35:32,270 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:35:32,270 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:35:32,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:35:32,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:35:32,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:35:32,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:35:32,703 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:35:32,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label36.c [2021-02-24 04:35:32,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/690ed7b7c/11b6e35923704a14b37db6a0c471db59/FLAG99bbb9fd6 [2021-02-24 04:35:33,493 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:35:33,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label36.c [2021-02-24 04:35:33,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/690ed7b7c/11b6e35923704a14b37db6a0c471db59/FLAG99bbb9fd6 [2021-02-24 04:35:33,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/690ed7b7c/11b6e35923704a14b37db6a0c471db59 [2021-02-24 04:35:33,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:35:33,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:35:33,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:35:33,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:35:33,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:35:33,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:35:33" (1/1) ... [2021-02-24 04:35:33,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4792cac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:33, skipping insertion in model container [2021-02-24 04:35:33,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:35:33" (1/1) ... [2021-02-24 04:35:33,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:35:33,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:35:34,313 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_label36.c[20425,20438] [2021-02-24 04:35:34,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:35:34,362 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:35:34,446 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_label36.c[20425,20438] [2021-02-24 04:35:34,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:35:34,471 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:35:34,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34 WrapperNode [2021-02-24 04:35:34,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:35:34,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:35:34,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:35:34,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:35:34,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34" (1/1) ... [2021-02-24 04:35:34,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34" (1/1) ... [2021-02-24 04:35:34,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34" (1/1) ... [2021-02-24 04:35:34,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34" (1/1) ... [2021-02-24 04:35:34,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34" (1/1) ... [2021-02-24 04:35:34,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34" (1/1) ... [2021-02-24 04:35:34,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34" (1/1) ... [2021-02-24 04:35:34,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:35:34,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:35:34,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:35:34,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:35:34,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:35:34,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:35:34,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:35:34,756 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:35:34,756 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-24 04:35:34,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:35:34,756 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-24 04:35:34,756 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:35:34,757 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:35:34,757 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:35:34,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:35:34,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:35:34,758 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:35:34,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:35:34,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:35:34,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:35:34,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:35:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:35:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:35:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:35:36,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:35:36,210 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:35:36,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:35:36 BoogieIcfgContainer [2021-02-24 04:35:36,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:35:36,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:35:36,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:35:36,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:35:36,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:35:33" (1/3) ... [2021-02-24 04:35:36,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27dec494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:35:36, skipping insertion in model container [2021-02-24 04:35:36,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:35:34" (2/3) ... [2021-02-24 04:35:36,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27dec494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:35:36, skipping insertion in model container [2021-02-24 04:35:36,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:35:36" (3/3) ... [2021-02-24 04:35:36,225 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label36.c [2021-02-24 04:35:36,230 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:35:36,235 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:35:36,252 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:35:36,277 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:35:36,277 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:35:36,277 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:35:36,277 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:35:36,277 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:35:36,278 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:35:36,278 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:35:36,278 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:35:36,332 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-24 04:35:36,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-02-24 04:35:36,374 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:35:36,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:35:36,376 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:35:36,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:35:36,383 INFO L82 PathProgramCache]: Analyzing trace with hash 537659793, now seen corresponding path program 1 times [2021-02-24 04:35:36,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:35:36,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77885757] [2021-02-24 04:35:36,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:35:36,484 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:35:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:36,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:36,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:36,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:36,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:36,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:36,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:36,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:36,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:37,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:35:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:37,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:37,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:37,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:37,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:35:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:35:37,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77885757] [2021-02-24 04:35:37,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:35:37,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:35:37,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591386594] [2021-02-24 04:35:37,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:35:37,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:35:37,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:35:37,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:35:37,145 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-24 04:35:39,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:35:39,570 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-24 04:35:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:35:39,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2021-02-24 04:35:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:35:39,591 INFO L225 Difference]: With dead ends: 1215 [2021-02-24 04:35:39,592 INFO L226 Difference]: Without dead ends: 636 [2021-02-24 04:35:39,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:35:39,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-24 04:35:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-24 04:35:39,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-24 04:35:39,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-24 04:35:39,837 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 166 [2021-02-24 04:35:39,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:35:39,840 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-24 04:35:39,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:35:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-24 04:35:39,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-24 04:35:39,854 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:35:39,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:35:39,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:35:39,856 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:35:39,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:35:39,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1496814521, now seen corresponding path program 1 times [2021-02-24 04:35:39,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:35:39,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652940947] [2021-02-24 04:35:39,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:35:39,930 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:35:39,955 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:35:39,964 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:35:39,971 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:35:40,006 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:40,018 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:40,024 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-24 04:35:40,028 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:40,033 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:40,043 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-24 04:35:40,046 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:35:40,052 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:35:40,055 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-24 04:35:40,061 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-24 04:35:40,090 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:35:40,093 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:35:40,098 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-24 04:35:40,100 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:35:40,101 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,102 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:35:40,108 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-24 04:35:40,109 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:35:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:40,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:40,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:35:40,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:40,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:40,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:35:40,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:40,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:35:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:35:40,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:35:40,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:35:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:35:40,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:35:40,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:40,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:35:40,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:40,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-02-24 04:35:40,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,645 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:40,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-02-24 04:35:40,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:40,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-24 04:35:40,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:40,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-02-24 04:35:40,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:40,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-24 04:35:40,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:40,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-02-24 04:35:40,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:40,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:40,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-24 04:35:40,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-24 04:35:40,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:41,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:41,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-02-24 04:35:41,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:41,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:41,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-02-24 04:35:41,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:41,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:41,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-02-24 04:35:41,296 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-02-24 04:35:41,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:41,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:41,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-02-24 04:35:41,499 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2021-02-24 04:35:41,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:41,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:41,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-02-24 04:35:41,722 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2021-02-24 04:35:41,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:41,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:41,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-02-24 04:35:41,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:41,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:41,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:41,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-02-24 04:35:42,087 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2021-02-24 04:35:42,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:42,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:42,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:42,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:42,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 220 [2021-02-24 04:35:42,402 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2021-02-24 04:35:42,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:42,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:42,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:42,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:42,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-02-24 04:35:42,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:42,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:42,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:42,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:42,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-02-24 04:35:42,834 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-24 04:35:42,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:42,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:42,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:42,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:42,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 285 [2021-02-24 04:35:43,239 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2021-02-24 04:35:43,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:43,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:43,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-02-24 04:35:43,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:43,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:43,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 308 [2021-02-24 04:35:43,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:43,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:43,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-02-24 04:35:43,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:43,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:43,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 309 [2021-02-24 04:35:43,977 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 97 [2021-02-24 04:35:43,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:43,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:43,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:43,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 331 [2021-02-24 04:35:44,081 WARN L141 QuantifierPusher]: treesize reduction 258, result has 21.1 percent of original size [2021-02-24 04:35:44,085 WARN L147 QuantifierPusher]: treesize reduction 258, result has 21.1 percent of original size 69 [2021-02-24 04:35:44,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:44,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:44,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:35:44,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:35:44,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:44,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:44,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:35:44,599 WARN L141 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size [2021-02-24 04:35:44,600 WARN L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-02-24 04:35:44,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:44,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:35:44,734 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-24 04:35:44,737 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-24 04:35:44,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:35:44,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:35:44,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:35:44,884 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-24 04:35:44,885 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-24 04:35:44,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652940947] [2021-02-24 04:35:44,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:35:44,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-24 04:35:44,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574901545] [2021-02-24 04:35:44,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-24 04:35:44,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:35:44,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-24 04:35:44,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:35:44,889 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 30 states. [2021-02-24 04:35:45,318 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 91 [2021-02-24 04:35:45,551 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2021-02-24 04:35:45,758 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 91 [2021-02-24 04:35:46,003 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 95 [2021-02-24 04:35:46,234 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 95 [2021-02-24 04:35:46,504 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 97 [2021-02-24 04:35:46,857 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2021-02-24 04:35:47,311 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 122 [2021-02-24 04:35:47,481 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 47 [2021-02-24 04:35:47,675 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2021-02-24 04:35:48,093 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2021-02-24 04:35:48,709 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 134 [2021-02-24 04:35:49,310 WARN L202 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 135 [2021-02-24 04:35:49,691 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-24 04:35:50,234 WARN L202 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 138 [2021-02-24 04:35:50,880 WARN L202 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 139 [2021-02-24 04:35:51,321 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2021-02-24 04:35:52,165 WARN L202 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 143 [2021-02-24 04:35:53,411 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-24 04:35:53,645 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-02-24 04:35:53,904 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-24 04:35:54,188 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:35:54,579 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-24 04:35:55,032 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-24 04:35:55,418 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-24 04:35:55,887 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-02-24 04:35:56,306 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-24 04:35:56,947 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-02-24 04:36:03,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:36:03,100 INFO L93 Difference]: Finished difference Result 1705 states and 2160 transitions. [2021-02-24 04:36:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-02-24 04:36:03,101 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 200 [2021-02-24 04:36:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:36:03,112 INFO L225 Difference]: With dead ends: 1705 [2021-02-24 04:36:03,112 INFO L226 Difference]: Without dead ends: 1112 [2021-02-24 04:36:03,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 11 SyntacticMatches, 6 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=910, Invalid=3646, Unknown=0, NotChecked=0, Total=4556 [2021-02-24 04:36:03,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2021-02-24 04:36:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1052. [2021-02-24 04:36:03,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2021-02-24 04:36:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1300 transitions. [2021-02-24 04:36:03,395 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1300 transitions. Word has length 200 [2021-02-24 04:36:03,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:36:03,396 INFO L480 AbstractCegarLoop]: Abstraction has 1052 states and 1300 transitions. [2021-02-24 04:36:03,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-24 04:36:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1300 transitions. [2021-02-24 04:36:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-02-24 04:36:03,403 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:36:03,403 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:36:03,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:36:03,404 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:36:03,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:36:03,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1597995468, now seen corresponding path program 1 times [2021-02-24 04:36:03,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:36:03,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368174709] [2021-02-24 04:36:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:36:03,441 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:03,445 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:03,448 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:03,455 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:03,484 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:36:03,486 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:36:03,489 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:36:03,491 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:36:03,492 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:03,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:36:03,497 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:36:03,498 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:03,502 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:03,504 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:03,508 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:03,535 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:36:03,537 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:36:03,540 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:36:03,541 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:36:03,543 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:03,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:36:03,548 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:36:03,550 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:03,553 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:03,556 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:03,559 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:03,589 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:36:03,591 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:36:03,594 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:36:03,595 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:36:03,596 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:03,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:36:03,603 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:36:03,605 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:03,610 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:03,613 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:36:03,616 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:36:03,642 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:36:03,643 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:36:03,646 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:36:03,647 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:36:03,648 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:03,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:36:03,652 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:36:03,653 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:36:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:36:03,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:36:03,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:36:03,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:36:03,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:36:03,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:36:03,794 WARN L141 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-02-24 04:36:03,795 WARN L147 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size 8 [2021-02-24 04:36:03,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:36:03,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:36:03,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:36:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:36:03,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:36:03,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:03,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:36:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:36:04,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:36:04,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:04,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:04,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:36:04,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:04,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:04,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:36:04,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:36:04,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:36:04,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:36:04,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:36:04,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:36:04,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-02-24 04:36:04,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-24 04:36:04,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-24 04:36:04,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:36:04,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-24 04:36:04,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-02-24 04:36:04,793 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-24 04:36:04,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-02-24 04:36:04,966 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-24 04:36:04,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:04,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-24 04:36:05,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:05,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-02-24 04:36:05,213 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2021-02-24 04:36:05,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:05,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-02-24 04:36:05,470 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-02-24 04:36:05,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:05,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-02-24 04:36:05,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:05,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-24 04:36:05,833 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-02-24 04:36:05,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:05,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-02-24 04:36:06,175 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-02-24 04:36:06,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:06,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 266 [2021-02-24 04:36:06,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:06,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-02-24 04:36:06,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:06,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-02-24 04:36:06,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:06,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-24 04:36:06,784 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-24 04:36:06,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:06,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-02-24 04:36:06,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:06,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-24 04:36:07,303 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2021-02-24 04:36:07,309 WARN L141 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size [2021-02-24 04:36:07,310 WARN L147 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size 58 [2021-02-24 04:36:07,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:36:07,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:36:07,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:36:07,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:36:07,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:36:07,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:36:07,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:36:07,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:07,831 WARN L141 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size [2021-02-24 04:36:07,832 WARN L147 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size 25 [2021-02-24 04:36:07,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:36:07,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:07,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:36:07,974 WARN L141 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size [2021-02-24 04:36:07,975 WARN L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-02-24 04:36:07,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368174709] [2021-02-24 04:36:07,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:36:07,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-02-24 04:36:07,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53836069] [2021-02-24 04:36:07,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-24 04:36:07,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:36:07,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-24 04:36:07,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2021-02-24 04:36:07,978 INFO L87 Difference]: Start difference. First operand 1052 states and 1300 transitions. Second operand 31 states. [2021-02-24 04:36:08,336 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:36:08,556 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-24 04:36:08,764 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-24 04:36:08,975 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:36:09,198 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-24 04:36:09,446 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-24 04:36:09,737 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2021-02-24 04:36:10,157 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-24 04:36:10,303 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-24 04:36:10,478 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-24 04:36:10,880 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-24 04:36:11,462 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 134 [2021-02-24 04:36:12,013 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2021-02-24 04:36:12,359 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-02-24 04:36:12,898 WARN L202 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2021-02-24 04:36:13,512 WARN L202 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2021-02-24 04:36:13,923 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-02-24 04:36:14,693 WARN L202 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:36:15,438 WARN L202 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-24 04:36:15,617 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-24 04:36:16,391 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-24 04:36:16,594 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-24 04:36:16,826 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-24 04:36:17,084 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-24 04:36:17,371 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-24 04:36:17,744 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-02-24 04:36:18,109 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-24 04:36:18,491 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-02-24 04:36:18,850 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-02-24 04:36:19,340 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:36:19,921 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:36:23,614 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 101 [2021-02-24 04:36:25,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:36:25,334 INFO L93 Difference]: Finished difference Result 3034 states and 3868 transitions. [2021-02-24 04:36:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-24 04:36:25,335 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 201 [2021-02-24 04:36:25,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:36:25,350 INFO L225 Difference]: With dead ends: 3034 [2021-02-24 04:36:25,350 INFO L226 Difference]: Without dead ends: 2012 [2021-02-24 04:36:25,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1557 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=1069, Invalid=4187, Unknown=0, NotChecked=0, Total=5256 [2021-02-24 04:36:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2021-02-24 04:36:25,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 1779. [2021-02-24 04:36:25,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1779 states. [2021-02-24 04:36:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2240 transitions. [2021-02-24 04:36:25,874 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2240 transitions. Word has length 201 [2021-02-24 04:36:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:36:25,875 INFO L480 AbstractCegarLoop]: Abstraction has 1779 states and 2240 transitions. [2021-02-24 04:36:25,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-02-24 04:36:25,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2240 transitions. [2021-02-24 04:36:25,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-24 04:36:25,884 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:36:25,884 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:36:25,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:36:25,885 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:36:25,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:36:25,885 INFO L82 PathProgramCache]: Analyzing trace with hash 250529205, now seen corresponding path program 1 times [2021-02-24 04:36:25,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:36:25,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193519049] [2021-02-24 04:36:25,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:36:25,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:25,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:36:25,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:25,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:36:25,941 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:36:25,943 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:36:25,945 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:36:25,946 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:36:25,947 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:25,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:25,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:25,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:36:25,951 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:36:25,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:25,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:36:25,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:25,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-24 04:36:25,988 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:36:25,989 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:36:25,991 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:36:25,992 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:36:25,993 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:25,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:25,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:25,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:36:25,997 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:36:25,997 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:36:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:36:26,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:36:26,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:36:26,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:36:26,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:36:26,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:36:26,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:36:26,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:36:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:36:26,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:36:26,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:36:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:36:26,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:36:26,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:36:26,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-02-24 04:36:26,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-02-24 04:36:26,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-02-24 04:36:26,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-24 04:36:26,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-24 04:36:26,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-02-24 04:36:26,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-02-24 04:36:26,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-02-24 04:36:26,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-02-24 04:36:26,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-24 04:36:26,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-24 04:36:26,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:26,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:26,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:26,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-02-24 04:36:27,151 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2021-02-24 04:36:27,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:27,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:27,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-02-24 04:36:27,381 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2021-02-24 04:36:27,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:27,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:27,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-02-24 04:36:27,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:27,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:27,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-02-24 04:36:27,726 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2021-02-24 04:36:27,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:27,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:27,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:27,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-02-24 04:36:28,063 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2021-02-24 04:36:28,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:28,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:28,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-02-24 04:36:28,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,149 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:28,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:28,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-02-24 04:36:28,522 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2021-02-24 04:36:28,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:28,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:28,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 282 [2021-02-24 04:36:28,766 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-24 04:36:28,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:28,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:28,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:28,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 319 [2021-02-24 04:36:29,211 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2021-02-24 04:36:29,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:29,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:29,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 324 [2021-02-24 04:36:29,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:29,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:29,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-02-24 04:36:29,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:29,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:29,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 325 [2021-02-24 04:36:29,874 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2021-02-24 04:36:29,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:29,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:29,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-02-24 04:36:29,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:29,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:29,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:29,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 349 [2021-02-24 04:36:30,486 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2021-02-24 04:36:30,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:30,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:30,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:30,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:30,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 393 [2021-02-24 04:36:31,043 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99 [2021-02-24 04:36:31,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:31,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:31,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 413 [2021-02-24 04:36:31,628 WARN L202 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2021-02-24 04:36:31,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:31,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:31,637 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 418 [2021-02-24 04:36:31,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:31,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:31,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 437 [2021-02-24 04:36:31,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:31,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:31,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-02-24 04:36:31,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:31,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:31,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:31,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 418 [2021-02-24 04:36:32,567 WARN L202 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2021-02-24 04:36:32,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:32,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:32,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:32,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:32,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 412 [2021-02-24 04:36:33,188 WARN L202 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2021-02-24 04:36:33,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:33,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:33,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 434 [2021-02-24 04:36:33,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:33,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:33,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 454 [2021-02-24 04:36:33,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:33,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:36:33,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 454 [2021-02-24 04:36:33,583 WARN L141 QuantifierPusher]: treesize reduction 361, result has 16.0 percent of original size [2021-02-24 04:36:33,585 WARN L147 QuantifierPusher]: treesize reduction 361, result has 16.0 percent of original size 69 [2021-02-24 04:36:33,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:33,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:33,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:33,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:33,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:33,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:33,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:36:34,655 WARN L202 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-24 04:36:34,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:34,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:34,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:34,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:34,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:36:35,400 WARN L202 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-24 04:36:35,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:35,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:35,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:35,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:35,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:36:35,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:35,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:35,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:35,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:35,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-24 04:36:36,132 WARN L202 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-24 04:36:36,134 WARN L141 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-02-24 04:36:36,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:36,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:36,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:36,136 WARN L147 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size 30 [2021-02-24 04:36:36,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:36,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:36,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:36,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:36,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:36:36,851 WARN L202 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-24 04:36:36,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:36,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:36:36,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:36:36,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:36:36,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-24 04:36:37,618 WARN L202 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-24 04:36:37,620 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-24 04:36:37,620 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-24 04:36:37,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193519049] [2021-02-24 04:36:37,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:36:37,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-02-24 04:36:37,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532256073] [2021-02-24 04:36:37,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-02-24 04:36:37,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:36:37,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-02-24 04:36:37,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=972, Unknown=0, NotChecked=0, Total=1260 [2021-02-24 04:36:37,624 INFO L87 Difference]: Start difference. First operand 1779 states and 2240 transitions. Second operand 35 states. [2021-02-24 04:36:38,116 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 91 [2021-02-24 04:36:38,338 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 93 [2021-02-24 04:36:38,565 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 91 [2021-02-24 04:36:38,807 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 95 [2021-02-24 04:36:39,044 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 95 [2021-02-24 04:36:39,313 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 97 [2021-02-24 04:36:39,649 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 116 [2021-02-24 04:36:40,098 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 122 [2021-02-24 04:36:40,268 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2021-02-24 04:36:40,469 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-02-24 04:36:40,890 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 128 [2021-02-24 04:36:41,551 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 134 [2021-02-24 04:36:42,150 WARN L202 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 135 [2021-02-24 04:36:42,550 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-02-24 04:36:43,129 WARN L202 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 138 [2021-02-24 04:36:43,786 WARN L202 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 139 [2021-02-24 04:36:44,335 WARN L202 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-02-24 04:36:45,190 WARN L202 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 143 [2021-02-24 04:36:46,002 WARN L202 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 144 [2021-02-24 04:36:46,785 WARN L202 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 145 [2021-02-24 04:36:47,747 WARN L202 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 145 [2021-02-24 04:36:48,580 WARN L202 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 146 [2021-02-24 04:36:48,851 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:36:50,111 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-24 04:36:50,316 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-02-24 04:36:50,565 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-02-24 04:36:50,822 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-02-24 04:36:51,097 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:36:51,505 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-02-24 04:36:51,901 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-24 04:36:52,445 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-02-24 04:36:52,872 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-02-24 04:36:53,308 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-24 04:36:54,098 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-02-24 04:36:54,825 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2021-02-24 04:36:55,473 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-02-24 04:36:56,048 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-02-24 04:36:56,962 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-02-24 04:36:57,566 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-02-24 04:37:03,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:37:03,274 INFO L93 Difference]: Finished difference Result 4550 states and 5927 transitions. [2021-02-24 04:37:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-24 04:37:03,275 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 210 [2021-02-24 04:37:03,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:37:03,294 INFO L225 Difference]: With dead ends: 4550 [2021-02-24 04:37:03,294 INFO L226 Difference]: Without dead ends: 2801 [2021-02-24 04:37:03,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 11 SyntacticMatches, 11 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2008 ImplicationChecksByTransitivity, 26.3s TimeCoverageRelationStatistics Valid=1403, Invalid=5403, Unknown=0, NotChecked=0, Total=6806 [2021-02-24 04:37:03,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2021-02-24 04:37:03,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2530. [2021-02-24 04:37:03,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2530 states. [2021-02-24 04:37:03,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3292 transitions. [2021-02-24 04:37:03,982 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3292 transitions. Word has length 210 [2021-02-24 04:37:03,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:37:03,983 INFO L480 AbstractCegarLoop]: Abstraction has 2530 states and 3292 transitions. [2021-02-24 04:37:03,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2021-02-24 04:37:03,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3292 transitions. [2021-02-24 04:37:03,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-02-24 04:37:03,996 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:37:03,997 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:37:03,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 04:37:03,997 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:37:03,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:37:03,998 INFO L82 PathProgramCache]: Analyzing trace with hash 705893110, now seen corresponding path program 1 times [2021-02-24 04:37:03,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:37:03,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376414214] [2021-02-24 04:37:03,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:37:04,016 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:37:04,019 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:37:04,020 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:37:04,023 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:37:04,050 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:37:04,051 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:37:04,053 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:37:04,054 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:37:04,056 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:37:04,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:37:04,059 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:37:04,060 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:37:04,063 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:37:04,065 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-24 04:37:04,067 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-24 04:37:04,094 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-24 04:37:04,095 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-24 04:37:04,098 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-24 04:37:04,099 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:37:04,099 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:37:04,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-24 04:37:04,103 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-24 04:37:04,104 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:37:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:37:04,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:37:04,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:37:04,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:37:04,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:37:04,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:37:04,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:37:04,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:37:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:37:04,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:37:04,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:37:04,349 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 04:37:04,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:37:04,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:37:04,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-24 04:37:04,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:37:04,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:37:04,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:37:04,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:37:04,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:37:04,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:37:04,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-24 04:37:04,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-24 04:37:04,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-24 04:37:04,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-24 04:37:04,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:37:04,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-02-24 04:37:04,990 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-02-24 04:37:04,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:04,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-02-24 04:37:05,216 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-02-24 04:37:05,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:05,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-02-24 04:37:05,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:05,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-02-24 04:37:05,402 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-24 04:37:05,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:05,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-02-24 04:37:05,686 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-02-24 04:37:05,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:05,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-24 04:37:05,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:05,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-02-24 04:37:06,078 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-02-24 04:37:06,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:06,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-02-24 04:37:06,444 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2021-02-24 04:37:06,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:06,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-02-24 04:37:06,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:06,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-24 04:37:06,914 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2021-02-24 04:37:06,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:06,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-02-24 04:37:06,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:06,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-02-24 04:37:07,438 WARN L202 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2021-02-24 04:37:07,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:07,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-02-24 04:37:07,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:07,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-02-24 04:37:07,995 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2021-02-24 04:37:07,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:08,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-24 04:37:08,524 WARN L202 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-02-24 04:37:08,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:08,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-02-24 04:37:08,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:08,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-02-24 04:37:09,132 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-24 04:37:09,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:09,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-02-24 04:37:09,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:09,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 346 [2021-02-24 04:37:09,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:09,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-02-24 04:37:09,861 WARN L202 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-24 04:37:09,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:09,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-24 04:37:10,429 WARN L202 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2021-02-24 04:37:10,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:10,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-02-24 04:37:10,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:10,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-24 04:37:10,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:10,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-24 04:37:10,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:10,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-02-24 04:37:11,340 WARN L202 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-02-24 04:37:11,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:11,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-02-24 04:37:11,993 WARN L202 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2021-02-24 04:37:11,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:11,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-02-24 04:37:12,679 WARN L202 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2021-02-24 04:37:12,683 WARN L141 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size [2021-02-24 04:37:12,684 WARN L147 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size 42 [2021-02-24 04:37:12,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:12,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:37:12,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:12,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:37:12,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:12,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:37:13,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:13,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:37:13,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:13,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:37:13,092 WARN L141 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size [2021-02-24 04:37:13,092 WARN L147 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size 26 [2021-02-24 04:37:13,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:13,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:37:13,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:37:13,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:37:13,241 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-24 04:37:13,242 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-24 04:37:13,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376414214] [2021-02-24 04:37:13,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:37:13,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-02-24 04:37:13,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971689360] [2021-02-24 04:37:13,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-24 04:37:13,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:37:13,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-24 04:37:13,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332 [2021-02-24 04:37:13,245 INFO L87 Difference]: Start difference. First operand 2530 states and 3292 transitions. Second operand 36 states. [2021-02-24 04:37:13,654 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-24 04:37:13,870 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2021-02-24 04:37:14,079 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-24 04:37:14,309 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-24 04:37:14,535 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-24 04:37:14,772 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2021-02-24 04:37:15,093 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2021-02-24 04:37:15,535 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2021-02-24 04:37:15,683 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-02-24 04:37:15,864 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-02-24 04:37:16,273 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-02-24 04:37:16,868 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2021-02-24 04:37:17,473 WARN L202 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 135 [2021-02-24 04:37:17,872 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-24 04:37:18,449 WARN L202 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2021-02-24 04:37:19,096 WARN L202 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-24 04:37:19,715 WARN L202 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-02-24 04:37:20,519 WARN L202 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-24 04:37:21,297 WARN L202 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-24 04:37:22,070 WARN L202 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-24 04:37:22,975 WARN L202 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-24 04:37:23,795 WARN L202 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 146 [2021-02-24 04:37:24,700 WARN L202 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2021-02-24 04:37:25,588 WARN L202 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 148 [2021-02-24 04:37:26,521 WARN L202 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 149 [2021-02-24 04:37:26,710 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-24 04:37:27,667 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-24 04:37:27,845 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-24 04:37:28,062 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-24 04:37:28,297 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-24 04:37:28,561 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-02-24 04:37:28,914 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-02-24 04:37:29,306 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-24 04:37:29,745 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-24 04:37:30,136 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-24 04:37:30,601 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 101 [2021-02-24 04:37:30,972 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-24 04:37:31,531 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-24 04:37:32,115 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:37:32,643 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:37:33,256 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:37:33,928 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-24 04:37:34,462 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-24 04:37:35,271 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-24 04:37:35,858 WARN L202 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-24 04:37:36,453 WARN L202 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-24 04:37:39,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:37:39,975 INFO L93 Difference]: Finished difference Result 6031 states and 7910 transitions. [2021-02-24 04:37:39,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-02-24 04:37:39,975 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 211 [2021-02-24 04:37:39,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:37:39,998 INFO L225 Difference]: With dead ends: 6031 [2021-02-24 04:37:39,999 INFO L226 Difference]: Without dead ends: 3531 [2021-02-24 04:37:40,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 11 SyntacticMatches, 11 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2437 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=1827, Invalid=6363, Unknown=0, NotChecked=0, Total=8190 [2021-02-24 04:37:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2021-02-24 04:37:40,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3240. [2021-02-24 04:37:40,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3240 states. [2021-02-24 04:37:40,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3240 states to 3240 states and 4212 transitions. [2021-02-24 04:37:40,845 INFO L78 Accepts]: Start accepts. Automaton has 3240 states and 4212 transitions. Word has length 211 [2021-02-24 04:37:40,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:37:40,846 INFO L480 AbstractCegarLoop]: Abstraction has 3240 states and 4212 transitions. [2021-02-24 04:37:40,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2021-02-24 04:37:40,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3240 states and 4212 transitions. [2021-02-24 04:37:40,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-02-24 04:37:40,858 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:37:40,858 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:37:40,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-24 04:37:40,859 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:37:40,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:37:40,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1170477453, now seen corresponding path program 1 times [2021-02-24 04:37:40,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:37:40,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286288661] [2021-02-24 04:37:40,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:37:40,866 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:183) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 04:37:40,870 INFO L168 Benchmark]: Toolchain (without parser) took 127092.75 ms. Allocated memory was 155.2 MB in the beginning and 596.6 MB in the end (delta: 441.5 MB). Free memory was 128.7 MB in the beginning and 412.2 MB in the end (delta: -283.5 MB). Peak memory consumption was 159.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:40,870 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 155.2 MB. Free memory is still 130.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:37:40,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.36 ms. Allocated memory is still 155.2 MB. Free memory was 127.7 MB in the beginning and 102.0 MB in the end (delta: 25.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:40,870 INFO L168 Benchmark]: Boogie Preprocessor took 158.08 ms. Allocated memory is still 155.2 MB. Free memory was 102.0 MB in the beginning and 132.8 MB in the end (delta: -30.7 MB). Peak memory consumption was 5.8 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:40,871 INFO L168 Benchmark]: RCFGBuilder took 1582.25 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 132.8 MB in the beginning and 96.0 MB in the end (delta: 36.8 MB). Peak memory consumption was 68.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:40,871 INFO L168 Benchmark]: TraceAbstraction took 124652.04 ms. Allocated memory was 186.6 MB in the beginning and 596.6 MB in the end (delta: 410.0 MB). Free memory was 95.4 MB in the beginning and 412.2 MB in the end (delta: -316.8 MB). Peak memory consumption was 93.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:37:40,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 155.2 MB. Free memory is still 130.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 677.36 ms. Allocated memory is still 155.2 MB. Free memory was 127.7 MB in the beginning and 102.0 MB in the end (delta: 25.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.08 ms. Allocated memory is still 155.2 MB. Free memory was 102.0 MB in the beginning and 132.8 MB in the end (delta: -30.7 MB). Peak memory consumption was 5.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1582.25 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 132.8 MB in the beginning and 96.0 MB in the end (delta: 36.8 MB). Peak memory consumption was 68.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 124652.04 ms. Allocated memory was 186.6 MB in the beginning and 596.6 MB in the end (delta: 410.0 MB). Free memory was 95.4 MB in the beginning and 412.2 MB in the end (delta: -316.8 MB). Peak memory consumption was 93.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorWernerOverapprox.accelerateLoop(AcceleratorWernerOverapprox.java:55) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...