/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:10:18,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:10:18,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:10:18,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:10:18,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:10:18,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:10:18,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:10:18,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:10:18,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:10:18,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:10:18,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:10:18,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:10:18,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:10:18,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:10:18,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:10:18,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:10:18,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:10:18,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:10:18,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:10:18,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:10:18,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:10:18,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:10:18,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:10:18,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:10:18,198 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:10:18,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:10:18,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:10:18,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:10:18,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:10:18,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:10:18,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:10:18,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:10:18,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:10:18,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:10:18,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:10:18,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:10:18,202 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:10:18,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:10:18,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:10:18,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:10:18,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:10:18,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:10:18,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:10:18,204 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:10:18,204 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:10:18,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:10:18,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:10:18,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:10:18,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:10:18,684 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:10:18,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2021-02-22 02:10:18,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13da79fd9/7996acc7349149ac89c17c8077e623b7/FLAGb3e0b71ab [2021-02-22 02:10:19,601 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:10:19,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2021-02-22 02:10:19,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13da79fd9/7996acc7349149ac89c17c8077e623b7/FLAGb3e0b71ab [2021-02-22 02:10:19,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13da79fd9/7996acc7349149ac89c17c8077e623b7 [2021-02-22 02:10:19,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:10:19,839 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:10:19,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:10:19,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:10:19,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:10:19,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:10:19" (1/1) ... [2021-02-22 02:10:19,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5055f6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:19, skipping insertion in model container [2021-02-22 02:10:19,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:10:19" (1/1) ... [2021-02-22 02:10:19,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:10:19,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:10:20,310 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33.c[21447,21460] [2021-02-22 02:10:20,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:10:20,350 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:10:20,506 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33.c[21447,21460] [2021-02-22 02:10:20,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:10:20,539 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:10:20,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20 WrapperNode [2021-02-22 02:10:20,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:10:20,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:10:20,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:10:20,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:10:20,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20" (1/1) ... [2021-02-22 02:10:20,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20" (1/1) ... [2021-02-22 02:10:20,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20" (1/1) ... [2021-02-22 02:10:20,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20" (1/1) ... [2021-02-22 02:10:20,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20" (1/1) ... [2021-02-22 02:10:20,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20" (1/1) ... [2021-02-22 02:10:20,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20" (1/1) ... [2021-02-22 02:10:20,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:10:20,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:10:20,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:10:20,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:10:20,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:10:20,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:10:20,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:10:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:10:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-22 02:10:20,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:10:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-22 02:10:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:10:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:10:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:10:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:10:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:10:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:10:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:10:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:10:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:10:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:10:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:10:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:10:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:10:22,299 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:10:22,299 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:10:22,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:10:22 BoogieIcfgContainer [2021-02-22 02:10:22,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:10:22,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:10:22,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:10:22,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:10:22,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:10:19" (1/3) ... [2021-02-22 02:10:22,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5148a87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:10:22, skipping insertion in model container [2021-02-22 02:10:22,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:10:20" (2/3) ... [2021-02-22 02:10:22,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5148a87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:10:22, skipping insertion in model container [2021-02-22 02:10:22,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:10:22" (3/3) ... [2021-02-22 02:10:22,312 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label33.c [2021-02-22 02:10:22,319 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:10:22,325 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:10:22,345 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:10:22,371 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:10:22,371 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:10:22,371 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:10:22,371 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:10:22,371 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:10:22,372 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:10:22,372 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:10:22,372 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:10:22,400 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-22 02:10:22,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-22 02:10:22,429 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:10:22,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:10:22,430 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:10:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:10:22,437 INFO L82 PathProgramCache]: Analyzing trace with hash -861768249, now seen corresponding path program 1 times [2021-02-22 02:10:22,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:10:22,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440416039] [2021-02-22 02:10:22,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:10:22,520 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:10:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:23,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:23,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:23,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:23,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:23,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:23,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:23,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:23,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:23,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:10:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:23,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:23,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:23,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:23,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:10:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:10:23,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440416039] [2021-02-22 02:10:23,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:10:23,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-22 02:10:23,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063889599] [2021-02-22 02:10:23,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-22 02:10:23,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:10:23,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-22 02:10:23,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-22 02:10:23,340 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-22 02:10:26,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:10:26,100 INFO L93 Difference]: Finished difference Result 1215 states and 1661 transitions. [2021-02-22 02:10:26,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:10:26,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2021-02-22 02:10:26,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:10:26,143 INFO L225 Difference]: With dead ends: 1215 [2021-02-22 02:10:26,143 INFO L226 Difference]: Without dead ends: 636 [2021-02-22 02:10:26,159 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 [2021-02-22 02:10:26,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-02-22 02:10:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 623. [2021-02-22 02:10:26,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2021-02-22 02:10:26,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 759 transitions. [2021-02-22 02:10:26,391 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 759 transitions. Word has length 175 [2021-02-22 02:10:26,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:10:26,393 INFO L480 AbstractCegarLoop]: Abstraction has 623 states and 759 transitions. [2021-02-22 02:10:26,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-22 02:10:26,393 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 759 transitions. [2021-02-22 02:10:26,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-02-22 02:10:26,403 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:10:26,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:10:26,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:10:26,404 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:10:26,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:10:26,405 INFO L82 PathProgramCache]: Analyzing trace with hash -487931951, now seen corresponding path program 1 times [2021-02-22 02:10:26,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:10:26,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145581030] [2021-02-22 02:10:26,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:10:26,473 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:10:26,496 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:10:26,504 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:10:26,511 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:10:26,547 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:26,560 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:26,566 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-22 02:10:26,571 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:26,577 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:26,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:26,588 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-22 02:10:26,594 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:10:26,599 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:10:26,602 WARN L141 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size [2021-02-22 02:10:26,608 WARN L147 QuantifierPusher]: treesize reduction 8, result has 87.1 percent of original size 54 [2021-02-22 02:10:26,651 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:26,654 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:26,658 WARN L141 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size [2021-02-22 02:10:26,660 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:26,662 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:26,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:26,668 WARN L147 QuantifierPusher]: treesize reduction 7, result has 91.4 percent of original size 74 [2021-02-22 02:10:26,669 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:10:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:26,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:26,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:26,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:10:26,874 WARN L141 QuantifierPusher]: treesize reduction 17, result has 39.3 percent of original size [2021-02-22 02:10:26,875 WARN L147 QuantifierPusher]: treesize reduction 17, result has 39.3 percent of original size 11 [2021-02-22 02:10:26,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-22 02:10:26,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:26,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:10:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:26,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:26,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:26,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:10:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:10:27,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-22 02:10:27,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,147 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:27,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:10:27,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-22 02:10:27,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:10:27,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 02:10:27,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:10:27,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:10:27,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:10:27,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:10:27,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-02-22 02:10:27,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-22 02:10:27,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-22 02:10:27,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-02-22 02:10:27,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-02-22 02:10:27,844 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-22 02:10:27,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:27,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-02-22 02:10:28,033 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-22 02:10:28,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:28,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-02-22 02:10:28,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:28,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-22 02:10:28,287 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-02-22 02:10:28,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:28,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-02-22 02:10:28,541 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2021-02-22 02:10:28,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:28,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-22 02:10:28,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:28,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-02-22 02:10:28,905 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2021-02-22 02:10:28,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:28,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-02-22 02:10:29,326 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2021-02-22 02:10:29,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:29,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-02-22 02:10:29,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:29,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-02-22 02:10:29,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:29,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-02-22 02:10:29,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:29,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-02-22 02:10:29,945 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-22 02:10:29,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:29,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-22 02:10:30,025 WARN L141 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size [2021-02-22 02:10:30,026 WARN L147 QuantifierPusher]: treesize reduction 235, result has 15.2 percent of original size 42 [2021-02-22 02:10:30,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:30,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:30,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:30,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:10:30,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:30,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:10:30,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:10:30,404 WARN L141 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size [2021-02-22 02:10:30,406 WARN L147 QuantifierPusher]: treesize reduction -2, result has 107.1 percent of original size 30 [2021-02-22 02:10:30,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:30,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:10:30,517 WARN L141 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-02-22 02:10:30,517 WARN L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-02-22 02:10:30,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:10:30,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:30,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:10:30,644 WARN L141 QuantifierPusher]: treesize reduction 31, result has 3.1 percent of original size [2021-02-22 02:10:30,645 WARN L147 QuantifierPusher]: treesize reduction 31, result has 3.1 percent of original size 1 [2021-02-22 02:10:30,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145581030] [2021-02-22 02:10:30,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:10:30,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-22 02:10:30,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734540743] [2021-02-22 02:10:30,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-22 02:10:30,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:10:30,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-22 02:10:30,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2021-02-22 02:10:30,649 INFO L87 Difference]: Start difference. First operand 623 states and 759 transitions. Second operand 30 states. [2021-02-22 02:10:31,076 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:10:31,321 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-22 02:10:31,528 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:10:31,767 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:10:32,007 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:10:32,236 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-22 02:10:32,567 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2021-02-22 02:10:33,002 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-22 02:10:33,158 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-22 02:10:33,312 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-22 02:10:33,764 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-22 02:10:34,349 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2021-02-22 02:10:34,949 WARN L202 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2021-02-22 02:10:35,307 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-22 02:10:35,880 WARN L202 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2021-02-22 02:10:36,530 WARN L202 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-22 02:10:36,964 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-02-22 02:10:37,776 WARN L202 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-22 02:10:38,034 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:10:38,837 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-22 02:10:39,044 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:10:39,271 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-02-22 02:10:39,504 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-22 02:10:39,867 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-22 02:10:40,278 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-22 02:10:40,668 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-02-22 02:10:41,116 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-22 02:10:41,512 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-22 02:10:42,111 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:10:47,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:10:47,712 INFO L93 Difference]: Finished difference Result 1711 states and 2167 transitions. [2021-02-22 02:10:47,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-02-22 02:10:47,713 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 209 [2021-02-22 02:10:47,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:10:47,722 INFO L225 Difference]: With dead ends: 1711 [2021-02-22 02:10:47,722 INFO L226 Difference]: Without dead ends: 1118 [2021-02-22 02:10:47,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1440 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=976, Invalid=3716, Unknown=0, NotChecked=0, Total=4692 [2021-02-22 02:10:47,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2021-02-22 02:10:47,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1052. [2021-02-22 02:10:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2021-02-22 02:10:47,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1321 transitions. [2021-02-22 02:10:47,992 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1321 transitions. Word has length 209 [2021-02-22 02:10:47,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:10:47,993 INFO L480 AbstractCegarLoop]: Abstraction has 1052 states and 1321 transitions. [2021-02-22 02:10:47,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-22 02:10:47,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1321 transitions. [2021-02-22 02:10:47,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-02-22 02:10:47,999 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:10:48,000 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:10:48,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 02:10:48,000 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:10:48,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:10:48,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1698306028, now seen corresponding path program 1 times [2021-02-22 02:10:48,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:10:48,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986516051] [2021-02-22 02:10:48,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:10:48,027 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:48,037 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:48,039 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:48,043 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:48,070 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:48,072 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:48,076 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:10:48,077 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:48,080 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:48,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:48,085 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:10:48,087 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:48,092 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:48,094 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:48,098 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:48,125 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:48,127 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:48,129 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:10:48,131 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:48,133 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,133 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:48,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:48,138 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:10:48,139 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:48,143 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:48,145 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:48,149 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:48,176 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:48,178 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:48,180 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:10:48,182 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:48,183 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:48,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:48,188 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:10:48,189 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:48,193 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:48,195 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:10:48,200 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:10:48,227 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:10:48,228 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:10:48,231 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:10:48,232 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:10:48,234 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:48,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:48,239 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:10:48,239 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:10:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:48,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:48,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:10:48,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:10:48,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:10:48,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 02:10:48,469 WARN L141 QuantifierPusher]: treesize reduction 34, result has 30.6 percent of original size [2021-02-22 02:10:48,470 WARN L147 QuantifierPusher]: treesize reduction 34, result has 30.6 percent of original size 15 [2021-02-22 02:10:48,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:10:48,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:48,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:10:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:10:48,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:10:48,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:10:48,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:10:48,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:10:48,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:48,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,743 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:10:48,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-22 02:10:48,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:10:48,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-22 02:10:48,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-22 02:10:48,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:10:48,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-22 02:10:48,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:10:48,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:10:48,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-22 02:10:48,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:48,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-02-22 02:10:49,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:49,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-02-22 02:10:49,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:49,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-22 02:10:49,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:49,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-22 02:10:49,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:49,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-22 02:10:49,335 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-02-22 02:10:49,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:49,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-02-22 02:10:49,513 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-02-22 02:10:49,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:49,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-02-22 02:10:49,725 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-22 02:10:49,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:49,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-02-22 02:10:49,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:49,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-02-22 02:10:50,032 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2021-02-22 02:10:50,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:50,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-02-22 02:10:50,325 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2021-02-22 02:10:50,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:50,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-02-22 02:10:50,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:50,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-22 02:10:50,732 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-02-22 02:10:50,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:50,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-02-22 02:10:51,123 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2021-02-22 02:10:51,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:51,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 266 [2021-02-22 02:10:51,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:51,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-02-22 02:10:51,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:51,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-02-22 02:10:51,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:51,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-22 02:10:51,765 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2021-02-22 02:10:51,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:51,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-02-22 02:10:51,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:51,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-02-22 02:10:52,303 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2021-02-22 02:10:52,308 WARN L141 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size [2021-02-22 02:10:52,310 WARN L147 QuantifierPusher]: treesize reduction 257, result has 18.4 percent of original size 58 [2021-02-22 02:10:52,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:10:52,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:10:52,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:10:52,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:10:52,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:10:52,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:10:52,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:10:52,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-22 02:10:52,831 WARN L141 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size [2021-02-22 02:10:52,836 WARN L147 QuantifierPusher]: treesize reduction 8, result has 75.8 percent of original size 25 [2021-02-22 02:10:52,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 02:10:52,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:10:52,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:10:52,979 WARN L141 QuantifierPusher]: treesize reduction 12, result has 66.7 percent of original size [2021-02-22 02:10:52,980 WARN L147 QuantifierPusher]: treesize reduction 12, result has 66.7 percent of original size 24 [2021-02-22 02:10:52,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986516051] [2021-02-22 02:10:52,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:10:52,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-02-22 02:10:52,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874312770] [2021-02-22 02:10:52,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-22 02:10:52,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:10:52,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-22 02:10:52,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-02-22 02:10:52,983 INFO L87 Difference]: Start difference. First operand 1052 states and 1321 transitions. Second operand 31 states. [2021-02-22 02:10:53,438 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:10:53,675 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2021-02-22 02:10:53,901 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2021-02-22 02:10:54,146 WARN L202 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:10:54,402 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2021-02-22 02:10:54,658 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2021-02-22 02:10:54,971 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2021-02-22 02:10:55,407 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2021-02-22 02:10:55,568 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2021-02-22 02:10:55,763 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-02-22 02:10:56,208 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 128 [2021-02-22 02:10:56,837 WARN L202 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 134 [2021-02-22 02:10:57,429 WARN L202 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2021-02-22 02:10:57,823 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-02-22 02:10:58,410 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2021-02-22 02:10:59,080 WARN L202 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2021-02-22 02:10:59,556 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2021-02-22 02:11:00,369 WARN L202 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-22 02:11:01,185 WARN L202 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-22 02:11:01,384 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-22 02:11:02,187 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-22 02:11:02,409 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-02-22 02:11:02,669 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-22 02:11:02,950 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-02-22 02:11:03,253 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-02-22 02:11:03,656 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-02-22 02:11:04,049 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-22 02:11:04,469 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-02-22 02:11:04,858 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-02-22 02:11:05,019 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-22 02:11:05,514 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:11:06,074 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-22 02:11:09,901 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 101 [2021-02-22 02:11:11,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:11:11,719 INFO L93 Difference]: Finished difference Result 3028 states and 3933 transitions. [2021-02-22 02:11:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-22 02:11:11,719 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 210 [2021-02-22 02:11:11,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:11:11,734 INFO L225 Difference]: With dead ends: 3028 [2021-02-22 02:11:11,734 INFO L226 Difference]: Without dead ends: 2006 [2021-02-22 02:11:11,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 10 SyntacticMatches, 7 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1625 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=1138, Invalid=4264, Unknown=0, NotChecked=0, Total=5402 [2021-02-22 02:11:11,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2021-02-22 02:11:12,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1927. [2021-02-22 02:11:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2021-02-22 02:11:12,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2491 transitions. [2021-02-22 02:11:12,253 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2491 transitions. Word has length 210 [2021-02-22 02:11:12,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:11:12,254 INFO L480 AbstractCegarLoop]: Abstraction has 1927 states and 2491 transitions. [2021-02-22 02:11:12,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-02-22 02:11:12,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2491 transitions. [2021-02-22 02:11:12,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-02-22 02:11:12,263 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:11:12,264 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:11:12,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-22 02:11:12,266 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:11:12,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:11:12,267 INFO L82 PathProgramCache]: Analyzing trace with hash -983096797, now seen corresponding path program 1 times [2021-02-22 02:11:12,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:11:12,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116788582] [2021-02-22 02:11:12,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:11:12,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:11:12,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:11:12,331 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:11:12,333 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:11:12,336 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:11:12,337 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:11:12,338 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:12,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:11:12,343 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:11:12,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:11:12,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:11:12,385 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:11:12,395 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:11:12,398 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:11:12,400 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:11:12,401 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:12,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:11:12,406 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:11:12,406 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:11:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:11:12,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:11:12,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:11:12,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:11:12,532 WARN L141 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-02-22 02:11:12,532 WARN L147 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size 8 [2021-02-22 02:11:12,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-22 02:11:12,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:11:12,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:11:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:11:12,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:11:12,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:11:12,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:11:12,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:11:12,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:12,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:11:12,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-22 02:11:12,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:11:12,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:11:12,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:11:12,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:11:12,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:11:12,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-22 02:11:12,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:12,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-22 02:11:13,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-22 02:11:13,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-22 02:11:13,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-22 02:11:13,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-02-22 02:11:13,399 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2021-02-22 02:11:13,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-02-22 02:11:13,584 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-02-22 02:11:13,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-02-22 02:11:13,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-02-22 02:11:13,860 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2021-02-22 02:11:13,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:13,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-02-22 02:11:14,161 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-02-22 02:11:14,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:14,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-22 02:11:14,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:14,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-02-22 02:11:14,595 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-02-22 02:11:14,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:14,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-02-22 02:11:14,849 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-02-22 02:11:14,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:14,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 271 [2021-02-22 02:11:15,302 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2021-02-22 02:11:15,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:15,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 276 [2021-02-22 02:11:15,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:15,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-02-22 02:11:15,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:15,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-02-22 02:11:15,893 WARN L202 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2021-02-22 02:11:15,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:15,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 299 [2021-02-22 02:11:15,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:15,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-02-22 02:11:16,473 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2021-02-22 02:11:16,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:16,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-02-22 02:11:17,045 WARN L202 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-02-22 02:11:17,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:17,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-02-22 02:11:17,636 WARN L202 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 80 [2021-02-22 02:11:17,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:17,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 370 [2021-02-22 02:11:17,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:17,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 389 [2021-02-22 02:11:17,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:17,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 369 [2021-02-22 02:11:17,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:17,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 370 [2021-02-22 02:11:18,515 WARN L202 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-02-22 02:11:18,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:18,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-02-22 02:11:19,160 WARN L202 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2021-02-22 02:11:19,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:19,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 386 [2021-02-22 02:11:19,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:19,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 406 [2021-02-22 02:11:19,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:19,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 406 [2021-02-22 02:11:19,502 WARN L141 QuantifierPusher]: treesize reduction 340, result has 11.0 percent of original size [2021-02-22 02:11:19,508 WARN L147 QuantifierPusher]: treesize reduction 340, result has 11.0 percent of original size 42 [2021-02-22 02:11:19,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:19,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:19,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:19,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:19,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:19,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:19,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:19,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:19,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:19,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:11:19,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:20,506 WARN L202 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-22 02:11:20,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:20,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:20,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:20,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:11:20,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:11:21,254 WARN L202 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-22 02:11:21,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:21,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:21,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:21,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:11:21,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:11:21,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:21,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:21,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:21,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:11:21,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:11:21,954 WARN L202 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-22 02:11:21,957 WARN L141 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-02-22 02:11:21,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:21,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:21,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:11:21,959 WARN L147 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size 30 [2021-02-22 02:11:21,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:21,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:21,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:21,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:11:21,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:11:22,666 WARN L202 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-22 02:11:22,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:22,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:22,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:22,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:11:22,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:11:23,421 WARN L202 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-22 02:11:23,426 WARN L141 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size [2021-02-22 02:11:23,429 WARN L147 QuantifierPusher]: treesize reduction 28, result has 3.4 percent of original size 1 [2021-02-22 02:11:23,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116788582] [2021-02-22 02:11:23,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:11:23,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-02-22 02:11:23,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048645839] [2021-02-22 02:11:23,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-02-22 02:11:23,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:11:23,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-02-22 02:11:23,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2021-02-22 02:11:23,432 INFO L87 Difference]: Start difference. First operand 1927 states and 2491 transitions. Second operand 35 states. [2021-02-22 02:11:23,849 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-22 02:11:24,075 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2021-02-22 02:11:24,309 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-22 02:11:24,526 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-22 02:11:24,776 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-22 02:11:25,037 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2021-02-22 02:11:25,378 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2021-02-22 02:11:25,811 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2021-02-22 02:11:25,981 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2021-02-22 02:11:26,170 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-02-22 02:11:26,606 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 128 [2021-02-22 02:11:27,233 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2021-02-22 02:11:27,841 WARN L202 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 135 [2021-02-22 02:11:28,248 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-22 02:11:28,832 WARN L202 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2021-02-22 02:11:29,517 WARN L202 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-22 02:11:30,082 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-02-22 02:11:30,929 WARN L202 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-22 02:11:31,748 WARN L202 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-22 02:11:32,592 WARN L202 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 145 [2021-02-22 02:11:33,547 WARN L202 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 145 [2021-02-22 02:11:34,435 WARN L202 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 146 [2021-02-22 02:11:34,692 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:11:35,745 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-22 02:11:35,947 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-22 02:11:36,302 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-22 02:11:36,561 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-02-22 02:11:36,844 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-02-22 02:11:37,251 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-02-22 02:11:37,661 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-22 02:11:38,214 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-22 02:11:38,667 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-22 02:11:39,077 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-22 02:11:39,708 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:11:40,344 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-22 02:11:40,898 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:11:41,455 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:11:42,318 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:11:42,903 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:11:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:11:47,137 INFO L93 Difference]: Finished difference Result 5090 states and 6771 transitions. [2021-02-22 02:11:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-22 02:11:47,138 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 219 [2021-02-22 02:11:47,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:11:47,163 INFO L225 Difference]: With dead ends: 5090 [2021-02-22 02:11:47,164 INFO L226 Difference]: Without dead ends: 3193 [2021-02-22 02:11:47,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 10 SyntacticMatches, 11 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2087 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=1486, Invalid=5486, Unknown=0, NotChecked=0, Total=6972 [2021-02-22 02:11:47,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2021-02-22 02:11:47,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 2636. [2021-02-22 02:11:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2636 states. [2021-02-22 02:11:47,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3420 transitions. [2021-02-22 02:11:47,908 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3420 transitions. Word has length 219 [2021-02-22 02:11:47,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:11:47,909 INFO L480 AbstractCegarLoop]: Abstraction has 2636 states and 3420 transitions. [2021-02-22 02:11:47,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2021-02-22 02:11:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3420 transitions. [2021-02-22 02:11:47,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-02-22 02:11:47,921 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:11:47,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:11:47,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-22 02:11:47,922 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:11:47,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:11:47,922 INFO L82 PathProgramCache]: Analyzing trace with hash 275721730, now seen corresponding path program 1 times [2021-02-22 02:11:47,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:11:47,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455057643] [2021-02-22 02:11:47,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:11:47,942 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:11:47,950 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:11:47,952 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:11:47,956 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:11:47,986 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:11:47,990 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:11:47,993 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:11:47,994 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:11:47,995 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:47,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:47,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:11:48,001 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:11:48,004 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:11:48,009 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:11:48,011 WARN L141 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size [2021-02-22 02:11:48,017 WARN L147 QuantifierPusher]: treesize reduction 8, result has 86.7 percent of original size 52 [2021-02-22 02:11:48,067 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size [2021-02-22 02:11:48,069 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.8 percent of original size 30 [2021-02-22 02:11:48,071 WARN L141 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-02-22 02:11:48,072 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:11:48,073 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:48,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-22 02:11:48,077 WARN L147 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size 72 [2021-02-22 02:11:48,078 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:11:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:11:48,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:11:48,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:11:48,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:11:48,209 WARN L141 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size [2021-02-22 02:11:48,209 WARN L147 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size 12 [2021-02-22 02:11:48,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:11:48,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:11:48,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:11:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:11:48,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:11:48,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:11:48,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:11:48,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-22 02:11:48,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:11:48,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:11:48,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-22 02:11:48,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:11:48,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-22 02:11:48,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:11:48,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-22 02:11:48,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:11:48,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-22 02:11:48,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-02-22 02:11:48,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-22 02:11:48,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-22 02:11:48,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-22 02:11:48,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:48,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-02-22 02:11:49,117 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-02-22 02:11:49,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:49,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-02-22 02:11:49,347 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-02-22 02:11:49,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:49,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-02-22 02:11:49,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:49,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-02-22 02:11:49,567 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-22 02:11:49,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:49,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-02-22 02:11:49,879 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2021-02-22 02:11:49,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:49,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-22 02:11:49,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:49,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-02-22 02:11:50,314 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-02-22 02:11:50,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:50,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-02-22 02:11:50,728 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2021-02-22 02:11:50,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:50,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-02-22 02:11:50,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:50,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-02-22 02:11:51,245 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2021-02-22 02:11:51,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:51,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-02-22 02:11:51,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:51,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 273 [2021-02-22 02:11:51,809 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2021-02-22 02:11:51,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:51,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-02-22 02:11:51,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:51,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 297 [2021-02-22 02:11:52,441 WARN L202 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2021-02-22 02:11:52,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:52,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-22 02:11:53,020 WARN L202 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2021-02-22 02:11:53,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:53,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 361 [2021-02-22 02:11:53,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:53,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-02-22 02:11:53,695 WARN L202 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-22 02:11:53,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:53,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-02-22 02:11:53,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:53,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 346 [2021-02-22 02:11:53,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:53,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-02-22 02:11:54,536 WARN L202 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-02-22 02:11:54,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:54,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-02-22 02:11:55,188 WARN L202 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2021-02-22 02:11:55,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:55,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-02-22 02:11:55,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:55,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-22 02:11:55,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:55,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-02-22 02:11:55,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:55,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-02-22 02:11:56,145 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-02-22 02:11:56,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:56,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-02-22 02:11:56,859 WARN L202 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2021-02-22 02:11:56,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:56,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-02-22 02:11:57,601 WARN L202 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2021-02-22 02:11:57,606 WARN L141 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size [2021-02-22 02:11:57,607 WARN L147 QuantifierPusher]: treesize reduction 384, result has 9.9 percent of original size 42 [2021-02-22 02:11:57,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:57,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:57,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:57,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:57,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:57,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:11:57,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:57,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:11:57,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:57,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-22 02:11:58,045 WARN L141 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size [2021-02-22 02:11:58,046 WARN L147 QuantifierPusher]: treesize reduction 8, result has 76.5 percent of original size 26 [2021-02-22 02:11:58,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:58,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 02:11:58,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:11:58,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-22 02:11:58,194 WARN L141 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-02-22 02:11:58,195 WARN L147 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size 1 [2021-02-22 02:11:58,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455057643] [2021-02-22 02:11:58,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:11:58,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-02-22 02:11:58,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609535528] [2021-02-22 02:11:58,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-22 02:11:58,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:11:58,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-22 02:11:58,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=1017, Unknown=0, NotChecked=0, Total=1406 [2021-02-22 02:11:58,199 INFO L87 Difference]: Start difference. First operand 2636 states and 3420 transitions. Second operand 36 states. [2021-02-22 02:11:58,648 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-22 02:11:58,889 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2021-02-22 02:11:59,119 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2021-02-22 02:11:59,390 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-22 02:11:59,640 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-22 02:11:59,901 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2021-02-22 02:12:00,255 WARN L202 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2021-02-22 02:12:00,725 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2021-02-22 02:12:00,885 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-02-22 02:12:01,079 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-02-22 02:12:01,530 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-02-22 02:12:02,204 WARN L202 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2021-02-22 02:12:02,835 WARN L202 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 135 [2021-02-22 02:12:03,236 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-02-22 02:12:03,849 WARN L202 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2021-02-22 02:12:04,575 WARN L202 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2021-02-22 02:12:05,248 WARN L202 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-02-22 02:12:06,073 WARN L202 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143 [2021-02-22 02:12:06,942 WARN L202 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2021-02-22 02:12:07,777 WARN L202 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-22 02:12:08,745 WARN L202 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2021-02-22 02:12:09,659 WARN L202 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 146 [2021-02-22 02:12:10,636 WARN L202 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2021-02-22 02:12:11,601 WARN L202 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 148 [2021-02-22 02:12:12,640 WARN L202 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 149 [2021-02-22 02:12:12,849 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-22 02:12:13,208 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-22 02:12:13,966 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-22 02:12:14,171 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-02-22 02:12:14,431 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-22 02:12:14,688 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-22 02:12:14,990 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-02-22 02:12:15,426 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-02-22 02:12:15,855 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-02-22 02:12:16,391 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-02-22 02:12:16,842 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-02-22 02:12:17,361 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 101 [2021-02-22 02:12:17,754 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-02-22 02:12:18,385 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-02-22 02:12:19,025 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-22 02:12:19,636 WARN L202 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:12:20,335 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-22 02:12:21,069 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-22 02:12:21,683 WARN L202 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-22 02:12:22,519 WARN L202 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-02-22 02:12:23,161 WARN L202 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-02-22 02:12:23,788 WARN L202 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-02-22 02:12:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:12:27,434 INFO L93 Difference]: Finished difference Result 6073 states and 8025 transitions. [2021-02-22 02:12:27,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-02-22 02:12:27,434 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 220 [2021-02-22 02:12:27,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:12:27,461 INFO L225 Difference]: With dead ends: 6073 [2021-02-22 02:12:27,461 INFO L226 Difference]: Without dead ends: 3467 [2021-02-22 02:12:27,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 10 SyntacticMatches, 11 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2528 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=1916, Invalid=6456, Unknown=0, NotChecked=0, Total=8372 [2021-02-22 02:12:27,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3467 states. [2021-02-22 02:12:28,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3467 to 2923. [2021-02-22 02:12:28,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2923 states. [2021-02-22 02:12:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 3781 transitions. [2021-02-22 02:12:28,366 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 3781 transitions. Word has length 220 [2021-02-22 02:12:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:12:28,366 INFO L480 AbstractCegarLoop]: Abstraction has 2923 states and 3781 transitions. [2021-02-22 02:12:28,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2021-02-22 02:12:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 3781 transitions. [2021-02-22 02:12:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-02-22 02:12:28,381 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:12:28,381 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:12:28,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-22 02:12:28,382 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:12:28,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:12:28,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1223225125, now seen corresponding path program 1 times [2021-02-22 02:12:28,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:12:28,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101556210] [2021-02-22 02:12:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:12:28,389 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) [2021-02-22 02:12:28,393 INFO L168 Benchmark]: Toolchain (without parser) took 128573.42 ms. Allocated memory was 152.0 MB in the beginning and 580.9 MB in the end (delta: 428.9 MB). Free memory was 126.7 MB in the beginning and 273.7 MB in the end (delta: -147.0 MB). Peak memory consumption was 283.4 MB. Max. memory is 8.0 GB. [2021-02-22 02:12:28,393 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:12:28,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.29 ms. Allocated memory is still 152.0 MB. Free memory was 125.5 MB in the beginning and 129.6 MB in the end (delta: -4.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 8.0 GB. [2021-02-22 02:12:28,393 INFO L168 Benchmark]: Boogie Preprocessor took 136.27 ms. Allocated memory is still 152.0 MB. Free memory was 129.6 MB in the beginning and 124.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:12:28,394 INFO L168 Benchmark]: RCFGBuilder took 1624.55 ms. Allocated memory was 152.0 MB in the beginning and 192.9 MB in the end (delta: 40.9 MB). Free memory was 124.8 MB in the beginning and 166.8 MB in the end (delta: -42.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:12:28,394 INFO L168 Benchmark]: TraceAbstraction took 126087.52 ms. Allocated memory was 192.9 MB in the beginning and 580.9 MB in the end (delta: 388.0 MB). Free memory was 166.3 MB in the beginning and 273.7 MB in the end (delta: -107.4 MB). Peak memory consumption was 281.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:12:28,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory is still 126.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 695.29 ms. Allocated memory is still 152.0 MB. Free memory was 125.5 MB in the beginning and 129.6 MB in the end (delta: -4.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 136.27 ms. Allocated memory is still 152.0 MB. Free memory was 129.6 MB in the beginning and 124.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1624.55 ms. Allocated memory was 152.0 MB in the beginning and 192.9 MB in the end (delta: 40.9 MB). Free memory was 124.8 MB in the beginning and 166.8 MB in the end (delta: -42.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 126087.52 ms. Allocated memory was 192.9 MB in the beginning and 580.9 MB in the end (delta: 388.0 MB). Free memory was 166.3 MB in the beginning and 273.7 MB in the end (delta: -107.4 MB). Peak memory consumption was 281.0 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...