/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_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:14:09,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:14:09,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:14:09,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:14:09,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:14:09,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:14:09,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:14:09,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:14:09,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:14:09,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:14:09,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:14:09,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:14:09,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:14:09,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:14:09,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:14:09,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:14:09,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:14:09,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:14:09,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:14:09,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:14:09,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:14:09,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:14:09,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:14:09,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:14:09,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 14:14:09,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:14:09,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:14:09,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:14:09,341 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 14:14:09,351 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:14:09,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:14:09,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:14:09,354 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:14:09,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:14:09,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:14:09,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:14:09,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:14:09,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:14:09,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:14:09,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:14:09,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:14:09,356 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:14:09,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:14:09,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:14:09,356 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:14:09,357 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:14:09,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:14:09,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:14:09,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:14:09,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:14:09,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:14:09,358 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:14:09,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:14:09,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:14:09,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:14:09,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:14:09,730 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:14:09,731 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label44.c [2020-07-17 14:14:09,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481fa8fdf/06a8bf5977aa4b14b10145f6c49302a4/FLAGfb465273b [2020-07-17 14:14:10,546 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:14:10,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label44.c [2020-07-17 14:14:10,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481fa8fdf/06a8bf5977aa4b14b10145f6c49302a4/FLAGfb465273b [2020-07-17 14:14:10,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481fa8fdf/06a8bf5977aa4b14b10145f6c49302a4 [2020-07-17 14:14:10,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:14:10,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:14:10,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:14:10,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:14:10,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:14:10,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:14:10" (1/1) ... [2020-07-17 14:14:10,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e11b648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:10, skipping insertion in model container [2020-07-17 14:14:10,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:14:10" (1/1) ... [2020-07-17 14:14:10,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:14:10,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:14:11,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:14:11,369 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:14:11,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:14:11,555 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:14:11,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11 WrapperNode [2020-07-17 14:14:11,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:14:11,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:14:11,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:14:11,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:14:11,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11" (1/1) ... [2020-07-17 14:14:11,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11" (1/1) ... [2020-07-17 14:14:11,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11" (1/1) ... [2020-07-17 14:14:11,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11" (1/1) ... [2020-07-17 14:14:11,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11" (1/1) ... [2020-07-17 14:14:11,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11" (1/1) ... [2020-07-17 14:14:11,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11" (1/1) ... [2020-07-17 14:14:11,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:14:11,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:14:11,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:14:11,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:14:11,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11" (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 14:14:11,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:14:11,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:14:11,839 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-17 14:14:11,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:14:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-17 14:14:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:14:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 14:14:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 14:14:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:14:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:14:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:14:13,725 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:14:13,725 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 14:14:13,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:14:13 BoogieIcfgContainer [2020-07-17 14:14:13,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:14:13,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:14:13,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:14:13,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:14:13,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:14:10" (1/3) ... [2020-07-17 14:14:13,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b37775e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:14:13, skipping insertion in model container [2020-07-17 14:14:13,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:14:11" (2/3) ... [2020-07-17 14:14:13,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b37775e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:14:13, skipping insertion in model container [2020-07-17 14:14:13,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:14:13" (3/3) ... [2020-07-17 14:14:13,745 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label44.c [2020-07-17 14:14:13,756 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:14:13,765 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:14:13,781 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:14:13,803 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:14:13,804 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:14:13,804 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:14:13,804 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:14:13,804 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:14:13,804 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:14:13,804 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:14:13,804 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:14:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-07-17 14:14:13,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-17 14:14:13,875 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:14:13,876 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] [2020-07-17 14:14:13,878 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:14:13,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:14:13,885 INFO L82 PathProgramCache]: Analyzing trace with hash -118135375, now seen corresponding path program 1 times [2020-07-17 14:14:13,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:14:13,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271613789] [2020-07-17 14:14:13,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:14:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:14:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:14:14,482 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 14:14:14,485 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:14:14,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271613789] [2020-07-17 14:14:14,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:14:14,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 14:14:14,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516348945] [2020-07-17 14:14:14,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 14:14:14,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:14:14,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 14:14:14,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 14:14:14,519 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 5 states. [2020-07-17 14:14:18,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:14:18,680 INFO L93 Difference]: Finished difference Result 1431 states and 2025 transitions. [2020-07-17 14:14:18,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 14:14:18,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2020-07-17 14:14:18,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:14:18,717 INFO L225 Difference]: With dead ends: 1431 [2020-07-17 14:14:18,718 INFO L226 Difference]: Without dead ends: 848 [2020-07-17 14:14:18,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 14:14:18,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-07-17 14:14:18,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 775. [2020-07-17 14:14:18,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 775 states. [2020-07-17 14:14:18,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 942 transitions. [2020-07-17 14:14:19,003 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 942 transitions. Word has length 114 [2020-07-17 14:14:19,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:14:19,004 INFO L479 AbstractCegarLoop]: Abstraction has 775 states and 942 transitions. [2020-07-17 14:14:19,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 14:14:19,005 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 942 transitions. [2020-07-17 14:14:19,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-17 14:14:19,013 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:14:19,014 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] [2020-07-17 14:14:19,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:14:19,014 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:14:19,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:14:19,015 INFO L82 PathProgramCache]: Analyzing trace with hash -294296002, now seen corresponding path program 1 times [2020-07-17 14:14:19,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:14:19,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642008485] [2020-07-17 14:14:19,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:14:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:14:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:14:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:14:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:14:19,400 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 14:14:20,144 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-07-17 14:14:20,318 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-17 14:14:20,528 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:14:20,748 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:14:21,156 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 14:14:21,623 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-07-17 14:14:21,926 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:14:22,266 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:14:22,635 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:14:23,304 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-07-17 14:14:23,702 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:14:24,116 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:14:24,594 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:14:25,407 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 14:14:26,261 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2020-07-17 14:14:27,169 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 14:14:28,097 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-07-17 14:14:28,673 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-17 14:14:29,634 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2020-07-17 14:14:30,248 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 14:14:30,887 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-07-17 14:14:32,029 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-07-17 14:14:33,053 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2020-07-17 14:14:34,109 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 14:14:35,196 WARN L193 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 14:14:35,868 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-07-17 14:14:37,079 WARN L193 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:14:38,318 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:14:39,606 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:14:40,872 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 14:14:41,672 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-17 14:14:42,528 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 14:14:43,924 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:14:44,806 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:14:46,295 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 14:14:47,763 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 14:14:49,299 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:14:50,232 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-07-17 14:14:51,211 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-17 14:14:52,812 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-07-17 14:14:54,941 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2020-07-17 14:14:56,482 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:14:58,059 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-07-17 14:14:59,054 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-17 14:15:00,076 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 14:15:01,785 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-07-17 14:15:03,605 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-07-17 14:15:05,297 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-07-17 14:15:07,641 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2020-07-17 14:15:09,345 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2020-07-17 14:15:11,062 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 114 DAG size of output: 109 [2020-07-17 14:15:12,847 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-07-17 14:15:14,656 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-07-17 14:15:16,389 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-07-17 14:15:18,695 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-07-17 14:15:20,266 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2020-07-17 14:15:21,824 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:15:23,332 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:15:24,965 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-07-17 14:15:26,540 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:15:28,680 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 14:15:30,217 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:15:31,785 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:15:33,332 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 14:15:34,871 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:15:36,363 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-07-17 14:15:38,175 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 110 DAG size of output: 100 [2020-07-17 14:15:39,553 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:15:40,929 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 14:15:42,694 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 102 DAG size of output: 99 [2020-07-17 14:15:43,909 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-07-17 14:15:44,971 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-07-17 14:15:45,808 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2020-07-17 14:15:46,580 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-07-17 14:15:47,397 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-07-17 14:15:48,345 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-07-17 14:15:48,981 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:15:49,806 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 14:15:50,502 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:15:51,210 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:15:51,861 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2020-07-17 14:15:51,862 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:15:51,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642008485] [2020-07-17 14:15:51,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:15:51,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [101] imperfect sequences [] total 101 [2020-07-17 14:15:51,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751417207] [2020-07-17 14:15:51,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 102 states [2020-07-17 14:15:51,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:15:51,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2020-07-17 14:15:51,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3966, Invalid=6336, Unknown=0, NotChecked=0, Total=10302 [2020-07-17 14:15:51,873 INFO L87 Difference]: Start difference. First operand 775 states and 942 transitions. Second operand 102 states. [2020-07-17 14:15:56,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:15:56,778 INFO L93 Difference]: Finished difference Result 2457 states and 3209 transitions. [2020-07-17 14:15:56,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-17 14:15:56,778 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 149 [2020-07-17 14:15:56,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:15:56,798 INFO L225 Difference]: With dead ends: 2457 [2020-07-17 14:15:56,798 INFO L226 Difference]: Without dead ends: 1704 [2020-07-17 14:15:56,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2599 ImplicationChecksByTransitivity, 93.1s TimeCoverageRelationStatistics Valid=4143, Invalid=10137, Unknown=0, NotChecked=0, Total=14280 [2020-07-17 14:15:56,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2020-07-17 14:15:57,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1495. [2020-07-17 14:15:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-07-17 14:15:57,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1842 transitions. [2020-07-17 14:15:57,063 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1842 transitions. Word has length 149 [2020-07-17 14:15:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:15:57,064 INFO L479 AbstractCegarLoop]: Abstraction has 1495 states and 1842 transitions. [2020-07-17 14:15:57,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 102 states. [2020-07-17 14:15:57,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1842 transitions. [2020-07-17 14:15:57,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-17 14:15:57,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:15:57,071 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] [2020-07-17 14:15:57,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 14:15:57,072 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:15:57,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:15:57,073 INFO L82 PathProgramCache]: Analyzing trace with hash -724783129, now seen corresponding path program 1 times [2020-07-17 14:15:57,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:15:57,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589900894] [2020-07-17 14:15:57,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:15:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:15:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:15:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:15:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:15:57,351 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 14:15:58,206 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-07-17 14:15:58,391 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:15:58,614 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:15:59,025 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-07-17 14:15:59,480 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-07-17 14:15:59,767 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-17 14:16:00,080 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:16:00,415 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-17 14:16:01,053 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-07-17 14:16:01,443 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:16:01,856 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-07-17 14:16:02,286 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-07-17 14:16:03,108 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 14:16:03,953 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2020-07-17 14:16:04,840 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 92 [2020-07-17 14:16:05,792 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-07-17 14:16:06,355 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 14:16:07,335 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2020-07-17 14:16:07,926 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:16:08,547 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-07-17 14:16:09,684 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 14:16:10,726 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2020-07-17 14:16:11,782 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 14:16:12,875 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 14:16:13,552 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-07-17 14:16:14,724 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2020-07-17 14:16:15,975 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:16:17,237 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:16:18,517 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:16:19,310 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 14:16:20,121 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-17 14:16:21,539 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 105 DAG size of output: 105 [2020-07-17 14:16:22,410 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:16:23,892 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:16:25,384 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:16:26,918 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:16:27,861 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-17 14:16:28,846 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 14:16:30,625 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2020-07-17 14:16:32,752 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-07-17 14:16:34,308 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:16:36,006 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-07-17 14:16:36,989 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 14:16:37,994 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-17 14:16:39,705 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-07-17 14:16:41,498 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-07-17 14:16:43,162 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-07-17 14:16:45,483 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 110 DAG size of output: 109 [2020-07-17 14:16:47,187 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 110 DAG size of output: 110 [2020-07-17 14:16:48,913 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-07-17 14:16:50,691 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 111 DAG size of output: 111 [2020-07-17 14:16:52,496 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 112 DAG size of output: 112 [2020-07-17 14:16:54,234 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2020-07-17 14:16:56,580 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-07-17 14:16:58,187 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2020-07-17 14:16:59,750 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:17:01,288 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 14:17:02,900 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2020-07-17 14:17:04,544 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-07-17 14:17:06,702 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-07-17 14:17:08,333 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:17:09,980 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-07-17 14:17:11,588 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2020-07-17 14:17:13,199 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 14:17:14,840 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:17:16,859 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-07-17 14:17:18,372 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:17:19,886 WARN L193 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:17:21,830 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2020-07-17 14:17:23,179 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-07-17 14:17:24,398 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2020-07-17 14:17:25,336 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 72 [2020-07-17 14:17:26,187 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2020-07-17 14:17:27,095 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2020-07-17 14:17:28,134 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-07-17 14:17:28,834 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:17:29,773 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2020-07-17 14:17:30,537 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:17:31,318 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:17:31,937 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 43 [2020-07-17 14:17:31,938 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:17:31,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589900894] [2020-07-17 14:17:31,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:17:31,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [100] imperfect sequences [] total 100 [2020-07-17 14:17:31,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60929594] [2020-07-17 14:17:31,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2020-07-17 14:17:31,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:17:31,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2020-07-17 14:17:31,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3960, Invalid=6140, Unknown=0, NotChecked=0, Total=10100 [2020-07-17 14:17:31,945 INFO L87 Difference]: Start difference. First operand 1495 states and 1842 transitions. Second operand 101 states. [2020-07-17 14:17:33,078 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-07-17 14:17:33,448 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2020-07-17 14:17:33,857 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2020-07-17 14:17:34,277 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-07-17 14:17:34,752 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-07-17 14:17:35,312 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2020-07-17 14:17:35,847 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-07-17 14:17:36,671 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-07-17 14:17:37,610 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-07-17 14:17:38,659 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-07-17 14:17:39,551 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2020-07-17 14:17:40,422 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2020-07-17 14:17:41,307 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124 [2020-07-17 14:17:42,245 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2020-07-17 14:17:43,202 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 127 [2020-07-17 14:17:44,169 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2020-07-17 14:17:45,192 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 132 [2020-07-17 14:17:45,595 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 77 [2020-07-17 14:17:46,678 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 133 [2020-07-17 14:17:47,868 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 141 DAG size of output: 136 [2020-07-17 14:17:49,048 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 142 DAG size of output: 137 [2020-07-17 14:17:50,174 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 136 [2020-07-17 14:17:51,399 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 140 DAG size of output: 137 [2020-07-17 14:17:52,637 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 141 DAG size of output: 138 [2020-07-17 14:17:53,186 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 90 [2020-07-17 14:17:54,499 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 143 DAG size of output: 139 [2020-07-17 14:17:54,852 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2020-07-17 14:17:56,537 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2020-07-17 14:17:57,964 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 145 DAG size of output: 140 [2020-07-17 14:17:58,178 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 32 [2020-07-17 14:17:58,305 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2020-07-17 14:17:59,685 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 146 DAG size of output: 141 [2020-07-17 14:17:59,874 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 34 [2020-07-17 14:18:01,335 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 147 DAG size of output: 142 [2020-07-17 14:18:02,886 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:18:04,599 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:18:06,537 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2020-07-17 14:18:08,251 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-07-17 14:18:09,985 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2020-07-17 14:18:11,499 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:18:13,084 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 150 DAG size of output: 144 [2020-07-17 14:18:14,701 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-07-17 14:18:15,267 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-07-17 14:18:16,926 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 152 DAG size of output: 147 [2020-07-17 14:18:18,989 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-07-17 14:18:20,763 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2020-07-17 14:18:22,605 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-07-17 14:18:24,431 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 152 DAG size of output: 146 [2020-07-17 14:18:24,664 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-07-17 14:18:26,560 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 153 DAG size of output: 147 [2020-07-17 14:18:28,375 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 154 DAG size of output: 148 [2020-07-17 14:18:30,293 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 155 DAG size of output: 148 [2020-07-17 14:18:31,058 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 99 [2020-07-17 14:18:32,703 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 152 DAG size of output: 145 [2020-07-17 14:18:33,535 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 99 [2020-07-17 14:18:35,159 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2020-07-17 14:18:37,338 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2020-07-17 14:18:37,746 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2020-07-17 14:18:39,771 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-07-17 14:18:41,995 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 147 DAG size of output: 139 [2020-07-17 14:18:42,763 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 99 [2020-07-17 14:18:44,943 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 150 DAG size of output: 141 [2020-07-17 14:18:45,525 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 86 [2020-07-17 14:18:46,396 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2020-07-17 14:18:48,603 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 149 DAG size of output: 141 [2020-07-17 14:18:51,172 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-07-17 14:18:52,244 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-07-17 14:18:54,541 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2020-07-17 14:18:57,140 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 149 DAG size of output: 143 [2020-07-17 14:18:58,990 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2020-07-17 14:19:00,987 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 145 DAG size of output: 136 [2020-07-17 14:19:02,962 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 145 DAG size of output: 136 [2020-07-17 14:19:04,811 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2020-07-17 14:19:06,392 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2020-07-17 14:19:06,665 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-07-17 14:19:07,744 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-07-17 14:19:08,686 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-07-17 14:19:09,912 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-07-17 14:19:10,849 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2020-07-17 14:19:12,008 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-07-17 14:19:13,106 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2020-07-17 14:19:14,571 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2020-07-17 14:19:15,206 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-07-17 14:19:16,302 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 93 [2020-07-17 14:19:17,246 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 96 [2020-07-17 14:19:18,266 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 59 [2020-07-17 14:19:18,710 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 55 [2020-07-17 14:19:19,721 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 97 [2020-07-17 14:19:20,654 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 100 [2020-07-17 14:19:20,964 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2020-07-17 14:19:21,773 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 55 [2020-07-17 14:19:23,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:19:23,371 INFO L93 Difference]: Finished difference Result 5218 states and 6568 transitions. [2020-07-17 14:19:23,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2020-07-17 14:19:23,372 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 154 [2020-07-17 14:19:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:19:23,395 INFO L225 Difference]: With dead ends: 5218 [2020-07-17 14:19:23,395 INFO L226 Difference]: Without dead ends: 2214 [2020-07-17 14:19:23,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14660 ImplicationChecksByTransitivity, 192.3s TimeCoverageRelationStatistics Valid=12391, Invalid=41665, Unknown=0, NotChecked=0, Total=54056 [2020-07-17 14:19:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2020-07-17 14:19:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2180. [2020-07-17 14:19:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-07-17 14:19:23,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 2667 transitions. [2020-07-17 14:19:23,715 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 2667 transitions. Word has length 154 [2020-07-17 14:19:23,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:19:23,716 INFO L479 AbstractCegarLoop]: Abstraction has 2180 states and 2667 transitions. [2020-07-17 14:19:23,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 101 states. [2020-07-17 14:19:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 2667 transitions. [2020-07-17 14:19:23,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-17 14:19:23,723 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:19:23,724 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] [2020-07-17 14:19:23,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 14:19:23,724 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:19:23,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:19:23,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1496133130, now seen corresponding path program 1 times [2020-07-17 14:19:23,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:19:23,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065444439] [2020-07-17 14:19:23,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:19:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:19:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:19:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:19:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:19:24,037 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 14:19:24,958 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-07-17 14:19:25,146 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-17 14:19:25,355 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 14:19:25,594 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:19:26,081 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-07-17 14:19:26,622 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-07-17 14:19:26,947 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:19:27,296 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:19:27,696 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:19:28,457 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-07-17 14:19:28,910 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:19:29,388 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:19:29,900 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:19:30,862 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-07-17 14:19:31,853 WARN L193 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 87 [2020-07-17 14:19:32,888 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:19:34,010 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-07-17 14:19:34,652 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-07-17 14:19:35,787 WARN L193 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2020-07-17 14:19:36,461 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 14:19:37,170 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 14:19:38,478 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-07-17 14:19:39,676 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-07-17 14:19:40,907 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2020-07-17 14:19:42,170 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 14:19:42,930 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:19:44,317 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 96 DAG size of output: 96 [2020-07-17 14:19:45,782 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-07-17 14:19:47,265 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 14:19:48,774 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 14:19:49,674 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-07-17 14:19:50,609 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 14:19:52,249 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2020-07-17 14:19:53,246 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-07-17 14:19:54,964 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:19:56,699 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2020-07-17 14:19:58,470 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:19:59,564 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-17 14:20:00,696 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:20:02,647 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2020-07-17 14:20:05,193 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-07-17 14:20:07,037 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:20:08,907 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2020-07-17 14:20:10,075 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:20:11,253 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:20:13,281 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:20:15,370 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 111 DAG size of output: 109 [2020-07-17 14:20:17,328 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:20:20,082 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 106 DAG size of output: 105 [2020-07-17 14:20:22,110 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2020-07-17 14:20:24,175 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2020-07-17 14:20:26,282 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:20:28,460 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:20:30,534 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:20:33,345 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:20:35,307 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-07-17 14:20:37,211 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2020-07-17 14:20:39,103 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 101 DAG size of output: 100 [2020-07-17 14:20:41,052 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:20:43,023 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:20:45,615 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:20:47,562 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:20:49,595 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:20:51,574 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:20:53,452 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:20:55,619 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:20:58,072 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2020-07-17 14:20:59,940 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 98 DAG size of output: 98 [2020-07-17 14:21:01,792 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 99 DAG size of output: 98 [2020-07-17 14:21:04,239 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-07-17 14:21:05,926 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-07-17 14:21:07,409 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-07-17 14:21:08,566 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2020-07-17 14:21:09,619 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2020-07-17 14:21:10,736 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-07-17 14:21:12,027 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2020-07-17 14:21:12,915 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 14:21:14,063 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-07-17 14:21:15,027 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 14:21:16,015 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:21:16,740 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 39 [2020-07-17 14:21:16,741 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:21:16,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065444439] [2020-07-17 14:21:16,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:21:16,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [98] imperfect sequences [] total 98 [2020-07-17 14:21:16,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825344175] [2020-07-17 14:21:16,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2020-07-17 14:21:16,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:21:16,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2020-07-17 14:21:16,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3955, Invalid=5747, Unknown=0, NotChecked=0, Total=9702 [2020-07-17 14:21:16,745 INFO L87 Difference]: Start difference. First operand 2180 states and 2667 transitions. Second operand 99 states. [2020-07-17 14:21:20,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:21:20,695 INFO L93 Difference]: Finished difference Result 5627 states and 7158 transitions. [2020-07-17 14:21:20,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 14:21:20,696 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 161 [2020-07-17 14:21:20,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:21:20,728 INFO L225 Difference]: With dead ends: 5627 [2020-07-17 14:21:20,728 INFO L226 Difference]: Without dead ends: 3479 [2020-07-17 14:21:20,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 112.9s TimeCoverageRelationStatistics Valid=3982, Invalid=6730, Unknown=0, NotChecked=0, Total=10712 [2020-07-17 14:21:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2020-07-17 14:21:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3257. [2020-07-17 14:21:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3257 states. [2020-07-17 14:21:21,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3257 states to 3257 states and 3948 transitions. [2020-07-17 14:21:21,644 INFO L78 Accepts]: Start accepts. Automaton has 3257 states and 3948 transitions. Word has length 161 [2020-07-17 14:21:21,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:21:21,644 INFO L479 AbstractCegarLoop]: Abstraction has 3257 states and 3948 transitions. [2020-07-17 14:21:21,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 99 states. [2020-07-17 14:21:21,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3257 states and 3948 transitions. [2020-07-17 14:21:21,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-17 14:21:21,657 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:21:21,658 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, 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] [2020-07-17 14:21:21,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 14:21:21,658 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:21:21,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:21:21,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1800506154, now seen corresponding path program 1 times [2020-07-17 14:21:21,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:21:21,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278740286] [2020-07-17 14:21:21,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:21:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:21:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:21:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:21:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:21:21,982 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 14:21:22,675 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-17 14:21:22,937 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-07-17 14:21:23,241 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-17 14:21:23,594 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-17 14:21:23,970 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:21:24,298 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 14:21:24,866 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-07-17 14:21:25,491 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 14:21:25,887 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:21:26,309 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:21:26,753 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-07-17 14:21:27,617 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2020-07-17 14:21:28,129 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-17 14:21:28,669 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:21:29,241 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:21:30,367 WARN L193 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-07-17 14:21:31,501 WARN L193 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88 [2020-07-17 14:21:32,685 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 89 DAG size of output: 89 [2020-07-17 14:21:33,934 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-07-17 14:21:34,701 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 14:21:36,008 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2020-07-17 14:21:36,797 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-07-17 14:21:37,631 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:21:39,188 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-07-17 14:21:40,574 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2020-07-17 14:21:42,003 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 94 DAG size of output: 94 [2020-07-17 14:21:43,479 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 95 DAG size of output: 95 [2020-07-17 14:21:44,366 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-07-17 14:21:45,989 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-07-17 14:21:47,679 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-07-17 14:21:49,406 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:21:51,157 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-07-17 14:21:52,237 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 14:21:53,335 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-07-17 14:21:55,268 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 102 DAG size of output: 102 [2020-07-17 14:21:56,448 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-07-17 14:21:58,486 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:22:00,516 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2020-07-17 14:22:02,585 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:22:03,829 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:22:05,126 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:22:07,339 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 111 DAG size of output: 105 [2020-07-17 14:22:10,346 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-07-17 14:22:12,519 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:22:14,728 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-07-17 14:22:16,053 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-17 14:22:17,484 WARN L193 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-07-17 14:22:19,910 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:22:22,425 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-07-17 14:22:24,758 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-07-17 14:22:28,029 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2020-07-17 14:22:30,468 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2020-07-17 14:22:32,909 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2020-07-17 14:22:35,425 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-07-17 14:22:38,005 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2020-07-17 14:22:40,447 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2020-07-17 14:22:43,823 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2020-07-17 14:22:46,143 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-07-17 14:22:48,389 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-07-17 14:22:50,640 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 102 DAG size of output: 101 [2020-07-17 14:22:53,047 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-07-17 14:22:55,417 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 14:22:58,569 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:23:01,004 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2020-07-17 14:23:03,431 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 105 DAG size of output: 104 [2020-07-17 14:23:05,799 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-07-17 14:23:08,179 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-07-17 14:23:10,635 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2020-07-17 14:23:13,691 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2020-07-17 14:23:15,957 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2020-07-17 14:23:18,190 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 100 DAG size of output: 99 [2020-07-17 14:23:21,142 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 100 DAG size of output: 97 [2020-07-17 14:23:23,212 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-07-17 14:23:25,059 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-07-17 14:23:26,467 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2020-07-17 14:23:27,799 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2020-07-17 14:23:29,170 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2020-07-17 14:23:30,811 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-07-17 14:23:31,862 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-17 14:23:33,253 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2020-07-17 14:23:34,407 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:23:35,562 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:23:36,370 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 40 [2020-07-17 14:23:36,372 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:23:36,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278740286] [2020-07-17 14:23:36,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:23:36,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [98] imperfect sequences [] total 98 [2020-07-17 14:23:36,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052844306] [2020-07-17 14:23:36,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2020-07-17 14:23:36,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:23:36,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2020-07-17 14:23:36,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3955, Invalid=5747, Unknown=0, NotChecked=0, Total=9702 [2020-07-17 14:23:36,376 INFO L87 Difference]: Start difference. First operand 3257 states and 3948 transitions. Second operand 99 states. [2020-07-17 14:23:38,296 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-07-17 14:23:38,497 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:23:38,920 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2020-07-17 14:23:39,446 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-07-17 14:23:40,025 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-07-17 14:23:40,644 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-07-17 14:23:41,389 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 109 [2020-07-17 14:23:42,260 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-07-17 14:23:42,538 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-07-17 14:23:43,443 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-07-17 14:23:43,615 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 27 [2020-07-17 14:23:45,073 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 122 DAG size of output: 113 [2020-07-17 14:23:46,615 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2020-07-17 14:23:47,854 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2020-07-17 14:23:49,092 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 128 DAG size of output: 122 [2020-07-17 14:23:50,591 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 132 DAG size of output: 125 [2020-07-17 14:23:51,895 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2020-07-17 14:23:53,498 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 131 DAG size of output: 124 [2020-07-17 14:23:54,092 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2020-07-17 14:23:55,705 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 133 DAG size of output: 126 [2020-07-17 14:23:57,347 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 134 DAG size of output: 127 [2020-07-17 14:23:58,411 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-07-17 14:24:00,029 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2020-07-17 14:24:00,433 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-07-17 14:24:02,289 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 136 DAG size of output: 128 [2020-07-17 14:24:04,202 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 139 DAG size of output: 131 [2020-07-17 14:24:04,454 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2020-07-17 14:24:06,304 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 140 DAG size of output: 132 [2020-07-17 14:24:07,950 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2020-07-17 14:24:08,666 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2020-07-17 14:24:10,381 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 139 DAG size of output: 130 [2020-07-17 14:24:12,272 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 140 DAG size of output: 131 [2020-07-17 14:24:14,171 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 142 DAG size of output: 132 [2020-07-17 14:24:16,197 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2020-07-17 14:24:18,160 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2020-07-17 14:24:20,248 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 144 DAG size of output: 134 [2020-07-17 14:24:22,460 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2020-07-17 14:24:24,817 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-07-17 14:24:27,099 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-07-17 14:24:29,356 WARN L193 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-07-17 14:24:31,723 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 149 DAG size of output: 137 [2020-07-17 14:24:34,260 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 150 DAG size of output: 138 [2020-07-17 14:24:36,567 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 149 DAG size of output: 137 [2020-07-17 14:24:38,698 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-07-17 14:24:40,930 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 148 DAG size of output: 136 [2020-07-17 14:24:43,241 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 149 DAG size of output: 137 [2020-07-17 14:24:45,662 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 151 DAG size of output: 138 [2020-07-17 14:24:46,399 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2020-07-17 14:24:48,925 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 153 DAG size of output: 139 [2020-07-17 14:24:51,337 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 150 DAG size of output: 136 [2020-07-17 14:24:53,634 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 150 DAG size of output: 136 [2020-07-17 14:24:55,739 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 151 DAG size of output: 137 [2020-07-17 14:24:56,102 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-07-17 14:24:58,258 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 151 DAG size of output: 137 [2020-07-17 14:25:00,533 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 152 DAG size of output: 138 [2020-07-17 14:25:01,032 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2020-07-17 14:25:03,370 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 150 DAG size of output: 139 [2020-07-17 14:25:06,183 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2020-07-17 14:25:08,509 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 145 DAG size of output: 137 [2020-07-17 14:25:10,822 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 145 DAG size of output: 137 [2020-07-17 14:25:13,161 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2020-07-17 14:25:15,594 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2020-07-17 14:25:16,449 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2020-07-17 14:25:18,861 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2020-07-17 14:25:20,230 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-07-17 14:25:20,760 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-07-17 14:25:23,082 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2020-07-17 14:25:26,240 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-07-17 14:25:29,303 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-07-17 14:25:32,103 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 142 DAG size of output: 130 [2020-07-17 14:25:34,919 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 143 DAG size of output: 131 [2020-07-17 14:25:37,654 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 143 DAG size of output: 130 [2020-07-17 14:25:39,879 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2020-07-17 14:25:41,749 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 131 DAG size of output: 121 [2020-07-17 14:25:42,899 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 102 [2020-07-17 14:25:46,272 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-07-17 14:25:46,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:25:46,900 INFO L93 Difference]: Finished difference Result 6100 states and 7606 transitions. [2020-07-17 14:25:46,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2020-07-17 14:25:46,902 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 174 [2020-07-17 14:25:46,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:25:46,913 INFO L225 Difference]: With dead ends: 6100 [2020-07-17 14:25:46,913 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 14:25:46,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9318 ImplicationChecksByTransitivity, 254.4s TimeCoverageRelationStatistics Valid=10215, Invalid=28397, Unknown=0, NotChecked=0, Total=38612 [2020-07-17 14:25:46,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 14:25:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 14:25:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 14:25:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 14:25:46,939 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-07-17 14:25:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:25:46,940 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 14:25:46,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 99 states. [2020-07-17 14:25:46,940 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 14:25:46,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 14:25:46,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 14:25:46,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 14:25:53,863 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 287 [2020-07-17 14:26:43,593 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 309 [2020-07-17 14:26:43,847 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 301 [2020-07-17 14:26:44,165 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 271 [2020-07-17 14:26:44,353 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 367 [2020-07-17 14:26:44,642 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 271 [2020-07-17 14:26:44,948 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 425 [2020-07-17 14:26:45,073 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 309 [2020-07-17 14:26:45,322 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 301 [2020-07-17 14:26:45,605 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 271 [2020-07-17 14:26:45,784 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 367 [2020-07-17 14:26:46,066 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 271 [2020-07-17 14:26:46,340 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 425 [2020-07-17 14:27:04,037 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 64 [2020-07-17 14:27:05,657 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 348 DAG size of output: 101 [2020-07-17 14:27:08,130 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 348 DAG size of output: 111 [2020-07-17 14:27:12,500 WARN L193 SmtUtils]: Spent 4.36 s on a formula simplification. DAG size of input: 391 DAG size of output: 138 [2020-07-17 14:27:15,898 WARN L193 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 348 DAG size of output: 123 [2020-07-17 14:27:16,506 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 70 [2020-07-17 14:27:17,097 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 67 [2020-07-17 14:27:17,647 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 67 [2020-07-17 14:27:20,331 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 348 DAG size of output: 117 [2020-07-17 14:27:20,867 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 64