/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:28:07,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:28:07,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:28:07,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:28:07,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:28:07,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:28:07,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:28:07,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:28:07,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:28:07,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:28:07,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:28:07,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:28:07,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:28:07,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:28:07,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:28:07,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:28:07,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:28:07,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:28:07,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:28:07,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:28:07,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:28:07,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:28:07,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:28:07,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:28:07,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:28:07,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:28:07,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:28:07,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:28:07,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:28:07,177 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:28:07,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:28:07,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:28:07,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:28:07,180 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:28:07,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:28:07,180 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:28:07,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:28:07,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:28:07,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:28:07,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:28:07,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:28:07,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:28:07,183 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:28:07,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:28:07,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:28:07,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:28:07,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:28:07,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:28:07,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:28:07,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:28:07,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:28:07,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:28:07,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:28:07,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:28:07,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:28:07,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:07,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:28:07,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:28:07,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:28:07,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:28:07,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:28:07,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:28:07,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:28:07,491 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:28:07,492 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-07-21 11:28:07,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb8772eb/2d58fe16e13b47c8bffd16250e200274/FLAG94935cbaf [2020-07-21 11:28:08,148 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:28:08,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-07-21 11:28:08,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb8772eb/2d58fe16e13b47c8bffd16250e200274/FLAG94935cbaf [2020-07-21 11:28:08,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceb8772eb/2d58fe16e13b47c8bffd16250e200274 [2020-07-21 11:28:08,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:28:08,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:28:08,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:28:08,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:28:08,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:28:08,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:28:08" (1/1) ... [2020-07-21 11:28:08,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38342db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:08, skipping insertion in model container [2020-07-21 11:28:08,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:28:08" (1/1) ... [2020-07-21 11:28:08,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:28:08,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:28:09,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:28:09,006 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:28:09,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:28:09,158 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:28:09,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09 WrapperNode [2020-07-21 11:28:09,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:28:09,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:28:09,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:28:09,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:28:09,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09" (1/1) ... [2020-07-21 11:28:09,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09" (1/1) ... [2020-07-21 11:28:09,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09" (1/1) ... [2020-07-21 11:28:09,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09" (1/1) ... [2020-07-21 11:28:09,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09" (1/1) ... [2020-07-21 11:28:09,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09" (1/1) ... [2020-07-21 11:28:09,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09" (1/1) ... [2020-07-21 11:28:09,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:28:09,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:28:09,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:28:09,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:28:09,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09" (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 [2020-07-21 11:28:09,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:28:09,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:28:09,338 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:28:09,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:28:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:28:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:28:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:28:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:28:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:28:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:28:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:28:10,461 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:28:10,462 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:28:10,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:10 BoogieIcfgContainer [2020-07-21 11:28:10,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:28:10,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:28:10,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:28:10,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:28:10,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:28:08" (1/3) ... [2020-07-21 11:28:10,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e2a949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:10, skipping insertion in model container [2020-07-21 11:28:10,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:09" (2/3) ... [2020-07-21 11:28:10,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e2a949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:10, skipping insertion in model container [2020-07-21 11:28:10,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:10" (3/3) ... [2020-07-21 11:28:10,478 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2020-07-21 11:28:10,490 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:28:10,498 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:28:10,513 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:28:10,540 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:28:10,541 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:28:10,541 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:28:10,541 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:28:10,541 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:28:10,542 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:28:10,542 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:28:10,542 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:28:10,567 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 11:28:10,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-07-21 11:28:10,579 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:10,581 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] [2020-07-21 11:28:10,581 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:10,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:10,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1304641474, now seen corresponding path program 1 times [2020-07-21 11:28:10,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:10,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806475468] [2020-07-21 11:28:10,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:10,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:28:10,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:10,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:10,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806475468] [2020-07-21 11:28:10,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:10,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:10,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288539026] [2020-07-21 11:28:10,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:10,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:10,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:10,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:10,878 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 11:28:11,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:11,814 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 11:28:11,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:11,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-07-21 11:28:11,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:11,832 INFO L225 Difference]: With dead ends: 619 [2020-07-21 11:28:11,833 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 11:28:11,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:11,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 11:28:11,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 11:28:11,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 11:28:11,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 11:28:11,913 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 106 [2020-07-21 11:28:11,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:11,914 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 11:28:11,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:11,915 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 11:28:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-21 11:28:11,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:11,921 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 11:28:12,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:12,135 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:12,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:12,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1103480815, now seen corresponding path program 1 times [2020-07-21 11:28:12,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:12,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230062114] [2020-07-21 11:28:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:12,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:12,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:12,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:12,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230062114] [2020-07-21 11:28:12,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:12,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:12,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697396282] [2020-07-21 11:28:12,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:12,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:12,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:12,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:12,267 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 11:28:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:12,878 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-21 11:28:12,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:12,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-21 11:28:12,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:12,887 INFO L225 Difference]: With dead ends: 782 [2020-07-21 11:28:12,887 INFO L226 Difference]: Without dead ends: 469 [2020-07-21 11:28:12,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:12,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-21 11:28:12,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-21 11:28:12,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-21 11:28:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-21 11:28:12,919 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 115 [2020-07-21 11:28:12,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:12,920 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-21 11:28:12,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:12,920 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-21 11:28:12,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 11:28:12,923 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:12,924 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 11:28:13,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:13,139 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:13,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:13,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1785081447, now seen corresponding path program 1 times [2020-07-21 11:28:13,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:13,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17919595] [2020-07-21 11:28:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:13,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 11:28:13,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 11:28:13,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 11:28:13,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17919595] [2020-07-21 11:28:13,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 11:28:13,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 11:28:13,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660517467] [2020-07-21 11:28:13,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 11:28:13,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:13,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 11:28:13,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:13,428 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-21 11:28:14,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:14,143 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-21 11:28:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 11:28:14,144 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-07-21 11:28:14,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:14,158 INFO L225 Difference]: With dead ends: 1386 [2020-07-21 11:28:14,158 INFO L226 Difference]: Without dead ends: 923 [2020-07-21 11:28:14,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:14,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-21 11:28:14,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-21 11:28:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-21 11:28:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-21 11:28:14,228 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 127 [2020-07-21 11:28:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:14,229 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-21 11:28:14,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 11:28:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-21 11:28:14,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 11:28:14,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:14,235 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-07-21 11:28:14,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:14,450 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:14,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:14,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1788893684, now seen corresponding path program 1 times [2020-07-21 11:28:14,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:14,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769712741] [2020-07-21 11:28:14,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:14,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:14,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:14,619 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:14,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:14,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769712741] [2020-07-21 11:28:14,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:14,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:14,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464521680] [2020-07-21 11:28:14,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:14,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:14,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:14,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:14,623 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-21 11:28:15,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:15,314 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-21 11:28:15,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:15,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-21 11:28:15,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:15,324 INFO L225 Difference]: With dead ends: 2130 [2020-07-21 11:28:15,324 INFO L226 Difference]: Without dead ends: 1213 [2020-07-21 11:28:15,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:15,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-21 11:28:15,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-21 11:28:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-21 11:28:15,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-21 11:28:15,365 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 135 [2020-07-21 11:28:15,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:15,366 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-21 11:28:15,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:15,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-21 11:28:15,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 11:28:15,371 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:15,371 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:28:15,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:15,586 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:15,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:15,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1477599978, now seen corresponding path program 1 times [2020-07-21 11:28:15,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:15,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308618331] [2020-07-21 11:28:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:15,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:28:15,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 11:28:15,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:15,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308618331] [2020-07-21 11:28:15,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:15,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:28:15,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491362151] [2020-07-21 11:28:15,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:28:15,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:15,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:28:15,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:15,755 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 5 states. [2020-07-21 11:28:16,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:16,626 INFO L93 Difference]: Finished difference Result 3660 states and 5049 transitions. [2020-07-21 11:28:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:28:16,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-21 11:28:16,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:16,646 INFO L225 Difference]: With dead ends: 3660 [2020-07-21 11:28:16,646 INFO L226 Difference]: Without dead ends: 2455 [2020-07-21 11:28:16,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:16,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2020-07-21 11:28:16,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2423. [2020-07-21 11:28:16,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-07-21 11:28:16,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3127 transitions. [2020-07-21 11:28:16,760 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3127 transitions. Word has length 141 [2020-07-21 11:28:16,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:16,761 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3127 transitions. [2020-07-21 11:28:16,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:28:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3127 transitions. [2020-07-21 11:28:16,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 11:28:16,775 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:16,776 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:28:16,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:16,982 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:16,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1971043980, now seen corresponding path program 1 times [2020-07-21 11:28:16,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:16,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369454911] [2020-07-21 11:28:16,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:17,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:17,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:17,156 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 11:28:17,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 11:28:17,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369454911] [2020-07-21 11:28:17,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:17,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:28:17,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013562492] [2020-07-21 11:28:17,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:28:17,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:17,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:28:17,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:17,231 INFO L87 Difference]: Start difference. First operand 2423 states and 3127 transitions. Second operand 6 states. [2020-07-21 11:28:18,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:18,066 INFO L93 Difference]: Finished difference Result 5334 states and 6898 transitions. [2020-07-21 11:28:18,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:28:18,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-07-21 11:28:18,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:18,096 INFO L225 Difference]: With dead ends: 5334 [2020-07-21 11:28:18,096 INFO L226 Difference]: Without dead ends: 2608 [2020-07-21 11:28:18,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 310 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:18,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2020-07-21 11:28:18,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2600. [2020-07-21 11:28:18,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2600 states. [2020-07-21 11:28:18,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3065 transitions. [2020-07-21 11:28:18,241 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3065 transitions. Word has length 157 [2020-07-21 11:28:18,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:18,241 INFO L479 AbstractCegarLoop]: Abstraction has 2600 states and 3065 transitions. [2020-07-21 11:28:18,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:28:18,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3065 transitions. [2020-07-21 11:28:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 11:28:18,249 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:18,249 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:28:18,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:18,464 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:18,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:18,465 INFO L82 PathProgramCache]: Analyzing trace with hash -218912508, now seen corresponding path program 1 times [2020-07-21 11:28:18,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:18,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046622317] [2020-07-21 11:28:18,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:18,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:18,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:18,603 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:18,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:18,676 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:18,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046622317] [2020-07-21 11:28:18,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:18,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:28:18,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378819895] [2020-07-21 11:28:18,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:28:18,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:18,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:28:18,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:18,679 INFO L87 Difference]: Start difference. First operand 2600 states and 3065 transitions. Second operand 7 states. [2020-07-21 11:28:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:19,941 INFO L93 Difference]: Finished difference Result 6492 states and 7667 transitions. [2020-07-21 11:28:19,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:28:19,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-21 11:28:19,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:19,957 INFO L225 Difference]: With dead ends: 6492 [2020-07-21 11:28:19,958 INFO L226 Difference]: Without dead ends: 2721 [2020-07-21 11:28:19,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:19,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2020-07-21 11:28:20,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2721. [2020-07-21 11:28:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2020-07-21 11:28:20,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3106 transitions. [2020-07-21 11:28:20,049 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3106 transitions. Word has length 161 [2020-07-21 11:28:20,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:20,050 INFO L479 AbstractCegarLoop]: Abstraction has 2721 states and 3106 transitions. [2020-07-21 11:28:20,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:28:20,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3106 transitions. [2020-07-21 11:28:20,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 11:28:20,059 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:20,059 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:20,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:20,275 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:20,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:20,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1598036036, now seen corresponding path program 1 times [2020-07-21 11:28:20,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:20,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052427340] [2020-07-21 11:28:20,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:20,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:28:20,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 67 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 11:28:20,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:20,489 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 11:28:20,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052427340] [2020-07-21 11:28:20,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:20,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 11:28:20,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944624553] [2020-07-21 11:28:20,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:28:20,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:20,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:28:20,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:20,491 INFO L87 Difference]: Start difference. First operand 2721 states and 3106 transitions. Second operand 5 states. [2020-07-21 11:28:21,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:21,187 INFO L93 Difference]: Finished difference Result 5364 states and 6318 transitions. [2020-07-21 11:28:21,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:28:21,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-07-21 11:28:21,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:21,202 INFO L225 Difference]: With dead ends: 5364 [2020-07-21 11:28:21,202 INFO L226 Difference]: Without dead ends: 2793 [2020-07-21 11:28:21,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 330 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:21,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2020-07-21 11:28:21,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2577. [2020-07-21 11:28:21,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2577 states. [2020-07-21 11:28:21,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 2819 transitions. [2020-07-21 11:28:21,282 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 2819 transitions. Word has length 168 [2020-07-21 11:28:21,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:21,282 INFO L479 AbstractCegarLoop]: Abstraction has 2577 states and 2819 transitions. [2020-07-21 11:28:21,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:28:21,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 2819 transitions. [2020-07-21 11:28:21,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-21 11:28:21,292 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:21,292 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:21,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:21,507 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:21,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:21,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1286736905, now seen corresponding path program 1 times [2020-07-21 11:28:21,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:21,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490581822] [2020-07-21 11:28:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:21,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:21,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 11:28:21,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:21,735 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 11:28:21,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490581822] [2020-07-21 11:28:21,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:21,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:28:21,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386073615] [2020-07-21 11:28:21,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:28:21,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:21,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:28:21,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:21,738 INFO L87 Difference]: Start difference. First operand 2577 states and 2819 transitions. Second operand 7 states. [2020-07-21 11:28:23,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:23,038 INFO L93 Difference]: Finished difference Result 4858 states and 5317 transitions. [2020-07-21 11:28:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 11:28:23,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2020-07-21 11:28:23,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:23,052 INFO L225 Difference]: With dead ends: 4858 [2020-07-21 11:28:23,052 INFO L226 Difference]: Without dead ends: 2431 [2020-07-21 11:28:23,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:28:23,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2020-07-21 11:28:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2415. [2020-07-21 11:28:23,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2415 states. [2020-07-21 11:28:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 2564 transitions. [2020-07-21 11:28:23,110 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 2564 transitions. Word has length 188 [2020-07-21 11:28:23,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:23,111 INFO L479 AbstractCegarLoop]: Abstraction has 2415 states and 2564 transitions. [2020-07-21 11:28:23,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:28:23,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 2564 transitions. [2020-07-21 11:28:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-21 11:28:23,117 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:23,118 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:28:23,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:23,332 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:23,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:23,333 INFO L82 PathProgramCache]: Analyzing trace with hash -44633951, now seen corresponding path program 1 times [2020-07-21 11:28:23,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:23,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1371217365] [2020-07-21 11:28:23,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:23,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:23,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:23,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:23,617 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:23,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1371217365] [2020-07-21 11:28:23,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:23,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:28:23,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074145008] [2020-07-21 11:28:23,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:28:23,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:23,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:28:23,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:23,620 INFO L87 Difference]: Start difference. First operand 2415 states and 2564 transitions. Second operand 6 states. [2020-07-21 11:28:24,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:24,037 INFO L93 Difference]: Finished difference Result 4666 states and 4959 transitions. [2020-07-21 11:28:24,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:28:24,038 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-07-21 11:28:24,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:24,047 INFO L225 Difference]: With dead ends: 4666 [2020-07-21 11:28:24,047 INFO L226 Difference]: Without dead ends: 2401 [2020-07-21 11:28:24,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 384 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:24,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2020-07-21 11:28:24,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2257. [2020-07-21 11:28:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2257 states. [2020-07-21 11:28:24,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 2375 transitions. [2020-07-21 11:28:24,097 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 2375 transitions. Word has length 195 [2020-07-21 11:28:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:24,098 INFO L479 AbstractCegarLoop]: Abstraction has 2257 states and 2375 transitions. [2020-07-21 11:28:24,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:28:24,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 2375 transitions. [2020-07-21 11:28:24,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-21 11:28:24,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:24,106 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:24,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:24,320 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:24,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:24,321 INFO L82 PathProgramCache]: Analyzing trace with hash 695276175, now seen corresponding path program 1 times [2020-07-21 11:28:24,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:24,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276655584] [2020-07-21 11:28:24,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:24,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:28:24,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:24,497 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-07-21 11:28:24,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:24,592 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 137 proven. 54 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 11:28:24,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276655584] [2020-07-21 11:28:24,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:24,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:28:24,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570458901] [2020-07-21 11:28:24,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:28:24,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:24,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:28:24,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:24,595 INFO L87 Difference]: Start difference. First operand 2257 states and 2375 transitions. Second operand 7 states. [2020-07-21 11:28:25,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:25,593 INFO L93 Difference]: Finished difference Result 4794 states and 5045 transitions. [2020-07-21 11:28:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:28:25,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-07-21 11:28:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:25,594 INFO L225 Difference]: With dead ends: 4794 [2020-07-21 11:28:25,594 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:28:25,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:25,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:28:25,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:28:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:28:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:28:25,603 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2020-07-21 11:28:25,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:25,603 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:28:25,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:28:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:28:25,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:28:25,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:25,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:28:27,882 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2020-07-21 11:28:28,460 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-07-21 11:28:28,986 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-07-21 11:28:28,991 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:28:28,991 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 11:28:28,992 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:28:28,992 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,992 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,992 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,992 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,993 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,993 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 11:28:28,993 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 11:28:28,993 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 11:28:28,993 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 11:28:28,993 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 11:28:28,993 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,994 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,995 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 11:28:28,995 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,995 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 11:28:28,995 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 11:28:28,995 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 11:28:28,995 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 11:28:28,995 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 11:28:28,995 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 11:28:28,995 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 11:28:28,996 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:28:28,996 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:28:28,996 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 11:28:28,996 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 11:28:28,996 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 11:28:28,996 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:28:28,996 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:28:28,996 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 11:28:28,996 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,997 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,997 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,997 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,997 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,997 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 472) no Hoare annotation was computed. [2020-07-21 11:28:28,997 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:28:28,997 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 11:28:28,997 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:28:28,998 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 11:28:28,998 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 11:28:28,998 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 11:28:28,998 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 11:28:28,998 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 11:28:28,998 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 11:28:28,998 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 11:28:28,998 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 11:28:28,999 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,000 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 11:28:29,001 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,002 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 11:28:29,003 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,004 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,005 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,005 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 11:28:29,005 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 11:28:29,005 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 11:28:29,005 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 11:28:29,005 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 11:28:29,005 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 11:28:29,005 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 11:28:29,006 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 11:28:29,006 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 11:28:29,006 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 11:28:29,006 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 11:28:29,006 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,006 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,006 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,006 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,007 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,007 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,007 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 11:28:29,007 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 11:28:29,007 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 11:28:29,007 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 11:28:29,007 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 11:28:29,007 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 11:28:29,008 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 11:28:29,008 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 11:28:29,008 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 11:28:29,008 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 11:28:29,008 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 11:28:29,008 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 11:28:29,008 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 11:28:29,008 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 11:28:29,009 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,009 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,009 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,009 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a28~0 |old(~a28~0)|)) (.cse9 (<= ~a17~0 8)) (.cse15 (<= 8 ~a17~0)) (.cse3 (<= 10 ~a28~0)) (.cse10 (= ~a19~0 |old(~a19~0)|)) (.cse24 (= 1 ~a25~0)) (.cse4 (<= ~a11~0 0))) (let ((.cse22 (not (<= |old(~a28~0)| 8))) (.cse14 (or .cse4 (< 0 |old(~a11~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (not (<= 9 |old(~a28~0)|))) (.cse16 (< ~a28~0 10)) (.cse17 (<= 9 ~a28~0)) (.cse11 (= ~a25~0 |old(~a25~0)|)) (.cse20 (not (< |old(~a28~0)| 10))) (.cse1 (not (<= |old(~a17~0)| 7))) (.cse7 (not (= 1 |old(~a19~0)|))) (.cse12 (not (<= |old(~a28~0)| 7))) (.cse23 (not (= 1 |old(~a25~0)|))) (.cse18 (not (<= 8 |old(~a17~0)|))) (.cse19 (not (<= |old(~a19~0)| 0))) (.cse2 (not (<= 10 |old(~a28~0)|))) (.cse25 (and .cse4 .cse8 .cse9 .cse15 .cse3 .cse10 .cse24)) (.cse13 (not (<= |old(~a17~0)| 8))) (.cse6 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse1 .cse6) (or .cse7 (and .cse4 .cse8 .cse9 .cse10 .cse11) .cse12 .cse13 .cse6) (or (and .cse14 .cse9 .cse15 .cse10 .cse16 .cse17 .cse11) .cse5 .cse18 .cse19 .cse13 .cse20) (or .cse0 .cse5 (and .cse21 .cse8 .cse10 .cse17) .cse1) (or .cse22 .cse18 .cse19 (and .cse8 .cse14 .cse9 .cse15 .cse10 .cse11) .cse13) (or .cse7 .cse4 .cse5 .cse13 .cse6 .cse20) (or .cse7 .cse22 .cse18 .cse23 (and .cse4 .cse9 .cse15 (<= ~a28~0 8) .cse10 .cse24) .cse13 .cse6) (or .cse7 .cse18 .cse23 .cse25 .cse2 .cse13 .cse6) (or .cse7 (and .cse14 (<= ~a28~0 10) .cse3 .cse10) .cse0 .cse2) (or .cse7 .cse4 .cse1 .cse6) (or .cse7 .cse1 (and .cse21 .cse8 .cse10)) (or .cse7 .cse5 .cse18 (and .cse9 .cse15 .cse10 .cse16 .cse17 .cse11) .cse13 .cse20) (or .cse7 .cse1 .cse2 .cse3) (or .cse7 (and .cse8 .cse9 .cse15 .cse10 .cse24) .cse12 .cse18 .cse23 .cse13) (or .cse23 .cse18 .cse19 .cse2 .cse25 .cse13 .cse6)))) [2020-07-21 11:28:29,009 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,010 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,010 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,010 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 11:28:29,010 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 11:28:29,010 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 11:28:29,010 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 11:28:29,010 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 11:28:29,010 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,011 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,012 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,012 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,012 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,012 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 11:28:29,012 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 11:28:29,012 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 11:28:29,012 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 11:28:29,012 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 11:28:29,012 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 11:28:29,013 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 11:28:29,013 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 11:28:29,013 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 11:28:29,013 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 11:28:29,013 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 11:28:29,013 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:28:29,013 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:28:29,013 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 11:28:29,014 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 11:28:29,014 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 11:28:29,014 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,014 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,014 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,014 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,014 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:29,014 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 11:28:29,014 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 11:28:29,015 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 11:28:29,015 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 11:28:29,015 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 11:28:29,015 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 11:28:29,015 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 11:28:29,015 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 11:28:29,015 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 11:28:29,015 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 11:28:29,015 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 11:28:29,016 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:28:29,016 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 11:28:29,016 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:28:29,016 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 11:28:29,016 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:28:29,016 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:28:29,016 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 11:28:29,016 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 11:28:29,016 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:28:29,017 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-21 11:28:29,017 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:28:29,017 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:28:29,017 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 11:28:29,017 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse6 (<= 8 ~a17~0)) (.cse2 (= 1 ~a19~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a11~0 0)) (.cse13 (<= ~a28~0 7))) (let ((.cse3 (<= ~a17~0 7)) (.cse4 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (or (and .cse2 .cse5 .cse11 .cse6 .cse13) (and .cse2 .cse5 .cse11 (<= ~a28~0 |old(~a28~0)|) (<= ~a19~0 |old(~a19~0)|) .cse13))) (.cse1 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (< ~a28~0 10)) (.cse12 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse10 .cse3 .cse4 .cse9) (and .cse5 .cse11 .cse6 .cse7 .cse12 .cse1) (and .cse0 (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse5 .cse11 .cse6 .cse7 .cse1) (and .cse2 .cse5 .cse6 .cse7 .cse13 .cse1) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse10 (<= 10 ~a28~0)) (and .cse5 .cse6 .cse7 .cse8 .cse12)))) [2020-07-21 11:28:29,017 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:28:29,018 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:28:29,018 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse6 (<= 8 ~a17~0)) (.cse2 (= 1 ~a19~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a11~0 0)) (.cse13 (<= ~a28~0 7))) (let ((.cse3 (<= ~a17~0 7)) (.cse4 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (or (and .cse2 .cse5 .cse11 .cse6 .cse13) (and .cse2 .cse5 .cse11 (<= ~a28~0 |old(~a28~0)|) (<= ~a19~0 |old(~a19~0)|) .cse13))) (.cse1 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (< ~a28~0 10)) (.cse12 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse10 .cse3 .cse4 .cse9) (and .cse5 .cse11 .cse6 .cse7 .cse12 .cse1) (and .cse0 (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse5 .cse11 .cse6 .cse7 .cse1) (and .cse2 .cse5 .cse6 .cse7 .cse13 .cse1) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse10 (<= 10 ~a28~0)) (and .cse5 .cse6 .cse7 .cse8 .cse12)))) [2020-07-21 11:28:29,018 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 11:28:29,018 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 11:28:29,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:28:29 BoogieIcfgContainer [2020-07-21 11:28:29,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:28:29,045 INFO L168 Benchmark]: Toolchain (without parser) took 20615.45 ms. Allocated memory was 138.9 MB in the beginning and 532.7 MB in the end (delta: 393.7 MB). Free memory was 102.2 MB in the beginning and 333.9 MB in the end (delta: -231.7 MB). Peak memory consumption was 363.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:29,045 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 11:28:29,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.73 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 101.8 MB in the beginning and 172.4 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:29,047 INFO L168 Benchmark]: Boogie Preprocessor took 106.42 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:29,048 INFO L168 Benchmark]: RCFGBuilder took 1202.46 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 183.2 MB in the end (delta: -16.4 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:29,049 INFO L168 Benchmark]: TraceAbstraction took 18571.99 ms. Allocated memory was 239.1 MB in the beginning and 532.7 MB in the end (delta: 293.6 MB). Free memory was 181.7 MB in the beginning and 333.9 MB in the end (delta: -152.3 MB). Peak memory consumption was 342.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:29,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.73 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 101.8 MB in the beginning and 172.4 MB in the end (delta: -70.6 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.42 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1202.46 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 183.2 MB in the end (delta: -16.4 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18571.99 ms. Allocated memory was 239.1 MB in the beginning and 532.7 MB in the end (delta: 293.6 MB). Free memory was 181.7 MB in the beginning and 333.9 MB in the end (delta: -152.3 MB). Peak memory consumption was 342.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 472]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((!(1 == \old(a19)) || ((((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && a28 <= 7) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a19 <= \old(a19)) && a28 <= 7)) && 1 == a25)) || ((1 == a19 && a17 <= 7) && 7 < \old(a17))) || !(\old(a28) <= 7)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 < 10) && 9 <= a28)) || !(\old(a11) <= 0)) || (((a28 <= 10 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && a19 <= 0) && 1 == a25)) || ((((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && a28 <= 7) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a19 <= \old(a19)) && a28 <= 7)) && a25 == \old(a25))) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7) && 1 == a25)) || !(\old(a17) <= 8)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((((a17 <= \old(a17) && 8 <= a17) && !(1 == \old(a25))) && a28 < 10) && a19 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.2s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1024 SDtfs, 4663 SDslu, 550 SDs, 0 SdLazy, 6677 SolverSat, 1013 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2979 GetRequests, 2916 SyntacticMatches, 13 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2721occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 420 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 149 PreInvPairs, 203 NumberOfFragments, 1024 HoareAnnotationTreeSize, 149 FomulaSimplifications, 2471 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2112 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1729 NumberOfCodeBlocks, 1729 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2943 ConstructedInterpolants, 0 QuantifiedInterpolants, 949775 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4667 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 1580/1698 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...