/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:18:07,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:18:07,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:18:07,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:18:07,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:18:07,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:18:07,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:18:07,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:18:07,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:18:07,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:18:07,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:18:07,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:18:07,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:18:07,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:18:07,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:18:07,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:18:07,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:18:07,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:18:07,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:18:07,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:18:07,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:18:07,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:18:07,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:18:07,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:18:07,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 14:18:08,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:18:08,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:18:08,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:18:08,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 14:18:08,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:18:08,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:18:08,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:18:08,055 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:18:08,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:18:08,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:18:08,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:18:08,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:18:08,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:18:08,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:18:08,057 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:18:08,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:18:08,057 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:18:08,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:18:08,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:18:08,058 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:18:08,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:18:08,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:18:08,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:18:08,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:18:08,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:18:08,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:18:08,064 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:18:08,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:18:08,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:18:08,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:18:08,421 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:18:08,422 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:18:08,422 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label53.c [2020-07-17 14:18:08,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74288281d/5984c19c39f24bda8c597fc4109b89ba/FLAGcd67cea43 [2020-07-17 14:18:09,188 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:18:09,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label53.c [2020-07-17 14:18:09,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74288281d/5984c19c39f24bda8c597fc4109b89ba/FLAGcd67cea43 [2020-07-17 14:18:09,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74288281d/5984c19c39f24bda8c597fc4109b89ba [2020-07-17 14:18:09,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:18:09,413 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:18:09,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:18:09,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:18:09,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:18:09,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:18:09" (1/1) ... [2020-07-17 14:18:09,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f0ec03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:09, skipping insertion in model container [2020-07-17 14:18:09,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:18:09" (1/1) ... [2020-07-17 14:18:09,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:18:09,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:18:09,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:18:09,977 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:18:10,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:18:10,200 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:18:10,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10 WrapperNode [2020-07-17 14:18:10,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:18:10,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:18:10,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:18:10,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:18:10,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10" (1/1) ... [2020-07-17 14:18:10,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10" (1/1) ... [2020-07-17 14:18:10,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10" (1/1) ... [2020-07-17 14:18:10,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10" (1/1) ... [2020-07-17 14:18:10,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10" (1/1) ... [2020-07-17 14:18:10,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10" (1/1) ... [2020-07-17 14:18:10,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10" (1/1) ... [2020-07-17 14:18:10,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:18:10,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:18:10,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:18:10,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:18:10,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10" (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 [2020-07-17 14:18:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:18:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:18:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-17 14:18:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:18:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-17 14:18:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:18:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 14:18:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 14:18:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:18:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:18:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:18:11,964 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:18:11,964 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 14:18:11,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:18:11 BoogieIcfgContainer [2020-07-17 14:18:11,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:18:11,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:18:11,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:18:11,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:18:11,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:18:09" (1/3) ... [2020-07-17 14:18:11,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48aaf982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:18:11, skipping insertion in model container [2020-07-17 14:18:11,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:18:10" (2/3) ... [2020-07-17 14:18:11,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48aaf982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:18:11, skipping insertion in model container [2020-07-17 14:18:11,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:18:11" (3/3) ... [2020-07-17 14:18:11,987 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label53.c [2020-07-17 14:18:12,003 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:18:12,021 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:18:12,040 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:18:12,074 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:18:12,075 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:18:12,075 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:18:12,075 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:18:12,075 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:18:12,075 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:18:12,076 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:18:12,076 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:18:12,118 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-07-17 14:18:12,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-17 14:18:12,168 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:18:12,169 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] [2020-07-17 14:18:12,169 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:18:12,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:18:12,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1669931929, now seen corresponding path program 1 times [2020-07-17 14:18:12,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:18:12,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800359050] [2020-07-17 14:18:12,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:18:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:18:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:18:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:18:12,958 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:18:12,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800359050] [2020-07-17 14:18:12,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:18:12,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 14:18:12,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795165508] [2020-07-17 14:18:12,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 14:18:12,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:18:12,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 14:18:12,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 14:18:12,998 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 5 states. [2020-07-17 14:18:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:18:16,590 INFO L93 Difference]: Finished difference Result 1431 states and 2025 transitions. [2020-07-17 14:18:16,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 14:18:16,593 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-07-17 14:18:16,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:18:16,645 INFO L225 Difference]: With dead ends: 1431 [2020-07-17 14:18:16,645 INFO L226 Difference]: Without dead ends: 848 [2020-07-17 14:18:16,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 14:18:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-07-17 14:18:16,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 775. [2020-07-17 14:18:16,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 775 states. [2020-07-17 14:18:16,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 942 transitions. [2020-07-17 14:18:16,852 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 942 transitions. Word has length 164 [2020-07-17 14:18:16,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:18:16,853 INFO L479 AbstractCegarLoop]: Abstraction has 775 states and 942 transitions. [2020-07-17 14:18:16,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 14:18:16,853 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 942 transitions. [2020-07-17 14:18:16,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-17 14:18:16,861 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:18:16,861 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-17 14:18:16,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:18:16,862 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:18:16,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:18:16,863 INFO L82 PathProgramCache]: Analyzing trace with hash 749242086, now seen corresponding path program 1 times [2020-07-17 14:18:16,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:18:16,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224823388] [2020-07-17 14:18:16,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:18:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:18:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:18:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:18:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:18:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:18:18,276 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:18:18,469 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:18:18,868 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 14:18:19,280 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-07-17 14:18:19,551 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:18:19,833 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:18:20,130 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:18:20,708 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-07-17 14:18:21,074 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:18:21,463 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:18:21,875 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:18:22,621 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 14:18:23,367 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2020-07-17 14:18:24,166 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 14:18:24,988 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-07-17 14:18:25,493 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-17 14:18:26,384 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-07-17 14:18:26,907 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 14:18:27,480 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-07-17 14:18:28,497 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-07-17 14:18:29,410 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2020-07-17 14:18:30,355 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 14:18:31,303 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 14:18:31,929 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-07-17 14:18:32,994 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:18:34,103 WARN L193 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:18:35,260 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:18:36,401 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 14:18:37,114 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-17 14:18:37,888 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 14:18:39,152 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:18:39,939 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:18:41,263 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 14:18:42,579 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 14:18:43,900 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:18:44,712 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-07-17 14:18:45,597 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-17 14:18:47,008 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-07-17 14:18:48,921 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2020-07-17 14:18:50,292 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:18:51,714 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-07-17 14:18:52,589 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-17 14:18:53,489 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 14:18:55,037 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-07-17 14:18:56,625 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-07-17 14:18:58,125 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-07-17 14:19:00,195 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2020-07-17 14:19:01,697 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2020-07-17 14:19:03,231 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 114 DAG size of output: 109 [2020-07-17 14:19:04,801 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-07-17 14:19:06,387 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-07-17 14:19:07,924 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-07-17 14:19:09,935 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-07-17 14:19:11,349 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2020-07-17 14:19:12,699 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:19:14,073 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:19:15,570 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-07-17 14:19:16,983 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:19:18,979 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 14:19:20,403 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:19:21,835 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:19:23,219 WARN L193 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 14:19:24,614 WARN L193 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:19:26,055 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-07-17 14:19:27,806 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 110 DAG size of output: 100 [2020-07-17 14:19:29,141 WARN L193 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:19:30,473 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 14:19:32,183 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 102 DAG size of output: 99 [2020-07-17 14:19:33,385 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-07-17 14:19:34,447 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-07-17 14:19:35,310 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-07-17 14:19:36,092 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-07-17 14:19:36,934 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-07-17 14:19:37,904 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-07-17 14:19:38,565 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:19:39,424 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 14:19:40,144 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:19:40,865 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:19:41,808 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-07-17 14:19:42,762 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-07-17 14:19:43,730 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2020-07-17 14:19:44,725 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2020-07-17 14:19:45,763 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-07-17 14:19:46,594 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:19:47,444 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:19:48,328 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:19:49,221 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 14:19:50,434 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-07-17 14:19:51,365 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:19:52,629 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:19:53,924 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:19:55,246 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 14:19:56,579 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:19:57,952 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-07-17 14:19:59,358 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:20:00,803 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:20:01,893 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:20:03,431 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 14:20:04,606 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-07-17 14:20:06,223 WARN L193 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 14:20:07,762 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-07-17 14:20:09,365 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2020-07-17 14:20:10,976 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 14:20:12,592 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 14:20:14,227 WARN L193 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-07-17 14:20:15,817 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-07-17 14:20:17,415 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-07-17 14:20:18,975 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 14:20:20,481 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-07-17 14:20:21,626 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:20:23,165 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:20:24,719 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:20:25,889 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:20:27,452 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-07-17 14:20:28,996 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-07-17 14:20:30,508 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 14:20:31,705 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:20:33,301 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:20:34,936 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:20:36,563 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:20:38,201 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:20:39,766 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-07-17 14:20:41,373 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-07-17 14:20:42,953 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:20:44,584 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-07-17 14:20:46,184 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 14:20:47,782 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 14:20:49,343 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-07-17 14:20:50,350 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 42 [2020-07-17 14:20:50,351 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:20:50,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224823388] [2020-07-17 14:20:50,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:20:50,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [151] imperfect sequences [] total 151 [2020-07-17 14:20:50,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009214240] [2020-07-17 14:20:50,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 152 states [2020-07-17 14:20:50,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:20:50,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2020-07-17 14:20:50,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9639, Invalid=13313, Unknown=0, NotChecked=0, Total=22952 [2020-07-17 14:20:50,371 INFO L87 Difference]: Start difference. First operand 775 states and 942 transitions. Second operand 152 states. [2020-07-17 14:20:51,936 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-07-17 14:20:57,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:20:57,996 INFO L93 Difference]: Finished difference Result 2457 states and 3209 transitions. [2020-07-17 14:20:57,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-17 14:20:57,998 INFO L78 Accepts]: Start accepts. Automaton has 152 states. Word has length 199 [2020-07-17 14:20:57,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:20:58,013 INFO L225 Difference]: With dead ends: 2457 [2020-07-17 14:20:58,013 INFO L226 Difference]: Without dead ends: 1704 [2020-07-17 14:20:58,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3949 ImplicationChecksByTransitivity, 153.8s TimeCoverageRelationStatistics Valid=9812, Invalid=18918, Unknown=0, NotChecked=0, Total=28730 [2020-07-17 14:20:58,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2020-07-17 14:20:58,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1495. [2020-07-17 14:20:58,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-07-17 14:20:58,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1840 transitions. [2020-07-17 14:20:58,284 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1840 transitions. Word has length 199 [2020-07-17 14:20:58,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:20:58,285 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1840 transitions. [2020-07-17 14:20:58,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 152 states. [2020-07-17 14:20:58,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1840 transitions. [2020-07-17 14:20:58,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-17 14:20:58,293 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:20:58,294 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-17 14:20:58,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 14:20:58,295 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:20:58,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:20:58,295 INFO L82 PathProgramCache]: Analyzing trace with hash -242076593, now seen corresponding path program 1 times [2020-07-17 14:20:58,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:20:58,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222879518] [2020-07-17 14:20:58,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:20:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:20:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:20:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:20:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:20:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:20:59,705 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-07-17 14:20:59,947 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-17 14:21:00,178 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-07-17 14:21:00,446 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:21:00,680 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:21:01,157 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-07-17 14:21:01,679 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-07-17 14:21:02,013 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:21:02,356 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:21:02,731 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 14:21:03,467 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-07-17 14:21:03,901 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:21:04,367 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:21:04,869 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-07-17 14:21:05,788 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 14:21:06,753 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 14:21:07,763 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-07-17 14:21:08,811 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-07-17 14:21:09,425 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 14:21:10,521 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-07-17 14:21:11,166 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:21:11,883 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-07-17 14:21:13,137 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 14:21:14,274 WARN L193 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2020-07-17 14:21:15,475 WARN L193 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 14:21:16,705 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 14:21:17,473 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-07-17 14:21:18,760 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2020-07-17 14:21:20,175 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:21:21,581 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:21:23,042 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:21:23,894 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 14:21:24,790 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-17 14:21:26,408 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-07-17 14:21:27,387 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:21:29,029 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:21:30,717 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:21:32,414 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:21:33,486 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-17 14:21:34,747 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 14:21:36,591 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2020-07-17 14:21:39,019 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-07-17 14:21:40,790 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:21:42,742 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-07-17 14:21:43,858 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 14:21:45,035 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-17 14:21:46,983 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-07-17 14:21:49,024 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-07-17 14:21:50,922 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-07-17 14:21:53,575 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2020-07-17 14:21:55,550 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-07-17 14:21:57,517 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-07-17 14:21:59,580 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-07-17 14:22:01,623 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 112 DAG size of output: 112 [2020-07-17 14:22:03,612 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-07-17 14:22:06,263 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-07-17 14:22:08,122 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2020-07-17 14:22:09,926 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:22:11,663 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 14:22:13,376 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-07-17 14:22:15,132 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-07-17 14:22:17,426 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-07-17 14:22:19,183 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:22:20,947 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-07-17 14:22:22,682 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-07-17 14:22:24,376 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 14:22:26,083 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:22:28,061 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-07-17 14:22:29,559 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:22:31,044 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:22:32,994 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2020-07-17 14:22:34,345 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-07-17 14:22:35,537 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2020-07-17 14:22:36,488 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 72 [2020-07-17 14:22:37,350 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-07-17 14:22:38,269 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 14:22:39,315 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-07-17 14:22:40,030 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:22:40,953 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 14:22:41,720 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:22:42,498 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:22:43,524 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-07-17 14:22:44,564 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-07-17 14:22:45,638 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 78 [2020-07-17 14:22:46,752 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79 [2020-07-17 14:22:47,869 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-07-17 14:22:48,747 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:22:49,655 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:22:50,599 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 14:22:51,567 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:22:52,872 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 14:22:53,832 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:22:55,175 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2020-07-17 14:22:56,553 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:22:57,961 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:22:59,404 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:23:00,858 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:23:02,343 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:23:03,836 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 14:23:04,963 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-07-17 14:23:06,553 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2020-07-17 14:23:07,754 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 14:23:09,458 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-07-17 14:23:11,108 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-07-17 14:23:12,817 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 14:23:14,583 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-07-17 14:23:16,345 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 14:23:18,065 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-07-17 14:23:19,802 WARN L193 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 14:23:21,519 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-07-17 14:23:23,182 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-07-17 14:23:24,811 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-07-17 14:23:26,071 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:23:27,725 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 14:23:29,355 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 14:23:30,653 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-07-17 14:23:32,300 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2020-07-17 14:23:33,939 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:23:35,541 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-07-17 14:23:36,817 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:23:38,513 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:23:40,251 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:23:42,006 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 14:23:43,762 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-07-17 14:23:45,489 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 14:23:47,178 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-07-17 14:23:48,879 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:23:50,615 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:23:52,330 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2020-07-17 14:23:54,033 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:23:55,714 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2020-07-17 14:23:56,716 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 43 [2020-07-17 14:23:56,717 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:23:56,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222879518] [2020-07-17 14:23:56,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:23:56,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [150] imperfect sequences [] total 150 [2020-07-17 14:23:56,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788715] [2020-07-17 14:23:56,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 151 states [2020-07-17 14:23:56,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:23:56,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2020-07-17 14:23:56,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9635, Invalid=13015, Unknown=0, NotChecked=0, Total=22650 [2020-07-17 14:23:56,727 INFO L87 Difference]: Start difference. First operand 1495 states and 1840 transitions. Second operand 151 states. [2020-07-17 14:23:57,952 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-07-17 14:23:58,338 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-07-17 14:23:58,781 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-07-17 14:23:59,236 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-07-17 14:23:59,720 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-07-17 14:24:00,295 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-07-17 14:24:00,860 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-07-17 14:24:01,729 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-07-17 14:24:02,715 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-07-17 14:24:03,812 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-07-17 14:24:04,773 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-07-17 14:24:05,688 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2020-07-17 14:24:06,623 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124 [2020-07-17 14:24:07,607 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2020-07-17 14:24:08,604 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 127 [2020-07-17 14:24:09,622 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2020-07-17 14:24:10,706 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 132 [2020-07-17 14:24:11,120 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 77 [2020-07-17 14:24:12,248 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 133 [2020-07-17 14:24:13,502 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 141 DAG size of output: 136 [2020-07-17 14:24:14,759 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 142 DAG size of output: 137 [2020-07-17 14:24:15,964 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 139 DAG size of output: 136 [2020-07-17 14:24:17,199 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 140 DAG size of output: 137 [2020-07-17 14:24:18,494 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 141 DAG size of output: 138 [2020-07-17 14:24:19,099 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 90 [2020-07-17 14:24:20,459 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 143 DAG size of output: 139 [2020-07-17 14:24:21,044 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2020-07-17 14:24:22,764 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2020-07-17 14:24:24,270 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2020-07-17 14:24:24,504 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 32 [2020-07-17 14:24:24,646 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-07-17 14:24:26,133 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 146 DAG size of output: 141 [2020-07-17 14:24:26,339 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 34 [2020-07-17 14:24:27,857 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 147 DAG size of output: 142 [2020-07-17 14:24:29,654 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:24:31,682 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:24:33,942 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2020-07-17 14:24:35,877 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-07-17 14:24:37,776 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2020-07-17 14:24:39,479 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:24:41,250 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2020-07-17 14:24:43,136 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-07-17 14:24:43,765 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-07-17 14:24:45,564 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-07-17 14:24:47,893 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-07-17 14:24:49,839 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-07-17 14:24:51,837 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-07-17 14:24:53,828 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 152 DAG size of output: 146 [2020-07-17 14:24:54,082 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-07-17 14:24:56,382 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 153 DAG size of output: 147 [2020-07-17 14:24:58,362 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 154 DAG size of output: 148 [2020-07-17 14:25:00,403 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 155 DAG size of output: 148 [2020-07-17 14:25:01,255 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 99 [2020-07-17 14:25:03,183 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-07-17 14:25:04,105 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 99 [2020-07-17 14:25:05,984 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2020-07-17 14:25:08,362 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2020-07-17 14:25:08,838 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2020-07-17 14:25:11,081 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-07-17 14:25:11,289 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 34 [2020-07-17 14:25:13,520 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-07-17 14:25:14,363 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 99 [2020-07-17 14:25:16,789 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 150 DAG size of output: 141 [2020-07-17 14:25:17,546 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 86 [2020-07-17 14:25:18,572 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2020-07-17 14:25:21,054 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 149 DAG size of output: 141 [2020-07-17 14:25:24,017 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-07-17 14:25:25,225 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-07-17 14:25:27,795 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2020-07-17 14:25:30,698 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:25:32,846 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2020-07-17 14:25:35,093 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 145 DAG size of output: 136 [2020-07-17 14:25:37,343 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 145 DAG size of output: 136 [2020-07-17 14:25:39,461 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2020-07-17 14:25:41,291 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2020-07-17 14:25:41,648 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-07-17 14:25:42,912 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-07-17 14:25:44,004 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-07-17 14:25:45,447 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-07-17 14:25:46,557 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-07-17 14:25:47,617 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-07-17 14:25:48,708 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-07-17 14:25:50,137 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-07-17 14:25:51,752 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2020-07-17 14:25:52,119 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-07-17 14:25:53,255 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2020-07-17 14:25:54,514 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2020-07-17 14:25:55,926 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 121 [2020-07-17 14:25:57,313 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-07-17 14:25:58,195 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2020-07-17 14:25:59,608 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 123 [2020-07-17 14:26:01,011 WARN L193 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2020-07-17 14:26:02,638 WARN L193 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 123 [2020-07-17 14:26:03,992 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2020-07-17 14:26:05,516 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 134 DAG size of output: 124 [2020-07-17 14:26:07,236 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 134 DAG size of output: 125 [2020-07-17 14:26:08,845 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 134 DAG size of output: 125 [2020-07-17 14:26:10,376 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2020-07-17 14:26:11,882 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2020-07-17 14:26:13,360 WARN L193 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2020-07-17 14:26:15,068 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2020-07-17 14:26:15,861 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 93 [2020-07-17 14:26:17,290 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-07-17 14:26:18,770 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 122 [2020-07-17 14:26:19,773 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 96 [2020-07-17 14:26:21,319 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 123 [2020-07-17 14:26:22,853 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 131 DAG size of output: 124 [2020-07-17 14:26:24,378 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 124 [2020-07-17 14:26:25,901 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 123 [2020-07-17 14:26:27,347 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2020-07-17 14:26:28,865 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 124 [2020-07-17 14:26:29,733 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 59 [2020-07-17 14:26:31,185 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2020-07-17 14:26:31,734 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 55 [2020-07-17 14:26:33,235 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 124 [2020-07-17 14:26:34,754 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2020-07-17 14:26:35,963 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 97 [2020-07-17 14:26:37,167 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 100 [2020-07-17 14:26:38,164 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 88 [2020-07-17 14:26:38,818 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2020-07-17 14:26:39,411 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2020-07-17 14:26:40,423 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 55 [2020-07-17 14:26:41,492 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-07-17 14:26:43,578 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 94 [2020-07-17 14:26:44,518 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 93 [2020-07-17 14:26:45,591 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 95 [2020-07-17 14:26:46,613 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 92 [2020-07-17 14:26:47,620 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2020-07-17 14:26:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:26:48,003 INFO L93 Difference]: Finished difference Result 5218 states and 6563 transitions. [2020-07-17 14:26:48,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2020-07-17 14:26:48,007 INFO L78 Accepts]: Start accepts. Automaton has 151 states. Word has length 204 [2020-07-17 14:26:48,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:26:48,027 INFO L225 Difference]: With dead ends: 5218 [2020-07-17 14:26:48,027 INFO L226 Difference]: Without dead ends: 2214 [2020-07-17 14:26:48,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 317 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25221 ImplicationChecksByTransitivity, 330.7s TimeCoverageRelationStatistics Valid=25915, Invalid=75527, Unknown=0, NotChecked=0, Total=101442 [2020-07-17 14:26:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2020-07-17 14:26:48,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2180. [2020-07-17 14:26:48,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-07-17 14:26:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 2665 transitions. [2020-07-17 14:26:48,320 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 2665 transitions. Word has length 204 [2020-07-17 14:26:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:26:48,321 INFO L479 AbstractCegarLoop]: Abstraction has 2180 states and 2665 transitions. [2020-07-17 14:26:48,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 151 states. [2020-07-17 14:26:48,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 2665 transitions. [2020-07-17 14:26:48,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-17 14:26:48,333 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:26:48,333 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-17 14:26:48,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 14:26:48,334 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:26:48,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:26:48,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1697813662, now seen corresponding path program 1 times [2020-07-17 14:26:48,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:26:48,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800512897] [2020-07-17 14:26:48,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:26:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:26:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:26:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:26:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:26:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:26:49,026 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2020-07-17 14:26:49,369 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-07-17 14:26:49,599 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-07-17 14:26:49,804 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-07-17 14:26:50,049 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-17 14:26:50,317 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 14:26:50,622 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:26:51,254 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-07-17 14:26:51,975 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-07-17 14:26:52,390 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:26:52,848 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:26:53,380 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:26:54,346 WARN L193 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-07-17 14:26:54,932 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:26:55,565 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:26:56,187 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:26:57,428 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 14:26:58,674 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:26:59,979 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:27:01,409 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 14:27:02,233 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-07-17 14:27:03,735 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-07-17 14:27:04,605 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 14:27:05,519 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 14:27:07,235 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-07-17 14:27:08,809 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-07-17 14:27:10,399 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2020-07-17 14:27:12,089 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 14:27:13,070 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:27:14,889 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 14:27:16,714 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-07-17 14:27:18,650 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 14:27:20,562 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 14:27:21,719 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-07-17 14:27:22,867 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 14:27:24,939 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:27:26,207 WARN L193 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-17 14:27:28,548 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:27:30,953 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:27:33,399 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:27:34,852 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 104 [2020-07-17 14:27:36,352 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:27:38,845 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2020-07-17 14:27:42,152 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-07-17 14:27:44,561 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:27:47,013 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-07-17 14:27:48,491 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:27:50,119 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:27:52,796 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:27:55,615 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-07-17 14:27:58,195 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:28:01,856 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 14:28:04,571 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:28:07,210 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2020-07-17 14:28:10,024 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:28:12,964 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:28:15,731 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:28:19,538 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:28:22,176 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-07-17 14:28:24,784 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 14:28:27,392 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-07-17 14:28:30,112 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:28:32,881 WARN L193 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:28:36,497 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:28:39,269 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:28:42,071 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:28:44,861 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:28:47,642 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:28:50,494 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:28:53,939 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2020-07-17 14:28:56,551 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 14:28:59,124 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 14:29:02,502 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-07-17 14:29:04,834 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-07-17 14:29:06,947 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-07-17 14:29:08,599 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-07-17 14:29:10,097 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2020-07-17 14:29:11,705 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-07-17 14:29:13,505 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-07-17 14:29:14,695 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 14:29:16,377 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-07-17 14:29:17,680 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 14:29:19,014 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:29:20,804 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-07-17 14:29:22,611 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-07-17 14:29:24,497 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 14:29:26,414 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 14:29:28,420 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-07-17 14:29:29,949 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:29:31,522 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:29:33,151 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:29:34,800 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:29:37,098 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-07-17 14:29:38,768 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:29:41,110 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 81 DAG size of output: 81 [2020-07-17 14:29:43,524 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-07-17 14:29:46,038 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-07-17 14:29:48,646 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:29:51,251 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 14:29:53,979 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:29:56,692 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:29:58,734 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:30:01,615 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 86 DAG size of output: 86 [2020-07-17 14:30:03,820 WARN L193 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:30:06,876 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:30:09,848 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-07-17 14:30:12,993 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:30:16,244 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:30:19,521 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 14:30:22,785 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-07-17 14:30:25,931 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2020-07-17 14:30:29,184 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2020-07-17 14:30:32,254 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-07-17 14:30:35,255 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-07-17 14:30:37,699 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:30:40,783 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:30:43,967 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:30:46,387 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:30:49,549 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2020-07-17 14:30:52,657 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 14:30:55,770 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-07-17 14:30:58,340 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 14:31:01,784 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:31:05,263 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 84 DAG size of output: 84 [2020-07-17 14:31:08,804 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:31:12,266 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-07-17 14:31:15,715 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-07-17 14:31:19,161 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2020-07-17 14:31:22,664 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2020-07-17 14:31:26,213 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-07-17 14:31:30,081 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-07-17 14:31:33,524 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2020-07-17 14:31:36,870 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2020-07-17 14:31:38,179 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 39 [2020-07-17 14:31:38,181 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:31:38,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800512897] [2020-07-17 14:31:38,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:31:38,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [148] imperfect sequences [] total 148 [2020-07-17 14:31:38,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487493009] [2020-07-17 14:31:38,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 149 states [2020-07-17 14:31:38,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:31:38,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2020-07-17 14:31:38,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9630, Invalid=12422, Unknown=0, NotChecked=0, Total=22052 [2020-07-17 14:31:38,188 INFO L87 Difference]: Start difference. First operand 2180 states and 2665 transitions. Second operand 149 states. [2020-07-17 14:31:44,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:31:44,041 INFO L93 Difference]: Finished difference Result 5627 states and 7153 transitions. [2020-07-17 14:31:44,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 14:31:44,048 INFO L78 Accepts]: Start accepts. Automaton has 149 states. Word has length 211 [2020-07-17 14:31:44,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:31:44,075 INFO L225 Difference]: With dead ends: 5627 [2020-07-17 14:31:44,075 INFO L226 Difference]: Without dead ends: 3479 [2020-07-17 14:31:44,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1687 ImplicationChecksByTransitivity, 289.9s TimeCoverageRelationStatistics Valid=9657, Invalid=13905, Unknown=0, NotChecked=0, Total=23562 [2020-07-17 14:31:44,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states.