/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:27:33,474 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:27:33,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:27:33,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:27:33,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:27:33,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:27:33,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:27:33,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:27:33,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:27:33,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:27:33,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:27:33,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:27:33,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:27:33,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:27:33,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:27:33,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:27:33,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:27:33,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:27:33,526 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 01:27:33,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:27:33,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:27:33,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:27:33,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:27:33,542 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:27:33,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:27:33,543 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:27:33,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:27:33,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:27:33,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:27:33,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:27:33,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:27:33,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:27:33,544 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:27:33,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:27:33,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:27:33,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:27:33,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:27:33,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:27:33,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:27:33,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:27:33,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:27:33,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:27:33,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:27:33,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:27:33,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:27:33,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:33,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:27:33,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:27:33,547 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:27:33,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:27:33,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:27:33,902 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:27:33,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:27:33,904 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:27:33,905 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-07-21 01:27:33,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bd8727e/b9ec90918b154e2886610928035429a5/FLAG0a390043e [2020-07-21 01:27:34,527 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:27:34,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-07-21 01:27:34,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bd8727e/b9ec90918b154e2886610928035429a5/FLAG0a390043e [2020-07-21 01:27:34,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bd8727e/b9ec90918b154e2886610928035429a5 [2020-07-21 01:27:34,827 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:27:34,830 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:27:34,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:27:34,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:27:34,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:27:34,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:27:34" (1/1) ... [2020-07-21 01:27:34,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b72a91b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:34, skipping insertion in model container [2020-07-21 01:27:34,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:27:34" (1/1) ... [2020-07-21 01:27:34,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:27:34,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:27:35,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:27:35,471 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:27:35,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:27:35,654 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:27:35,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35 WrapperNode [2020-07-21 01:27:35,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:27:35,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:27:35,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:27:35,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:27:35,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35" (1/1) ... [2020-07-21 01:27:35,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35" (1/1) ... [2020-07-21 01:27:35,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35" (1/1) ... [2020-07-21 01:27:35,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35" (1/1) ... [2020-07-21 01:27:35,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35" (1/1) ... [2020-07-21 01:27:35,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35" (1/1) ... [2020-07-21 01:27:35,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35" (1/1) ... [2020-07-21 01:27:35,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:27:35,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:27:35,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:27:35,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:27:35,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35" (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 01:27:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:27:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:27:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:27:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:27:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:27:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:27:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:27:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:27:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:27:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:27:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:27:37,184 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:27:37,185 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:27:37,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:27:37 BoogieIcfgContainer [2020-07-21 01:27:37,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:27:37,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:27:37,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:27:37,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:27:37,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:27:34" (1/3) ... [2020-07-21 01:27:37,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed764e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:27:37, skipping insertion in model container [2020-07-21 01:27:37,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:27:35" (2/3) ... [2020-07-21 01:27:37,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed764e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:27:37, skipping insertion in model container [2020-07-21 01:27:37,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:27:37" (3/3) ... [2020-07-21 01:27:37,202 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2020-07-21 01:27:37,215 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:27:37,224 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:27:37,241 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:27:37,276 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:27:37,276 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:27:37,276 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:27:37,276 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:27:37,277 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:27:37,277 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:27:37,277 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:27:37,277 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:27:37,319 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 01:27:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-21 01:27:37,336 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:37,338 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] [2020-07-21 01:27:37,338 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:37,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134543, now seen corresponding path program 1 times [2020-07-21 01:27:37,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:37,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001743857] [2020-07-21 01:27:37,363 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:27:37,527 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:27:37,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:37,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:27:37,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:37,606 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 01:27:37,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:27:37,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001743857] [2020-07-21 01:27:37,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:27:37,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:27:37,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674069452] [2020-07-21 01:27:37,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:27:37,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:37,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:27:37,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:27:37,639 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 01:27:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:38,756 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 01:27:38,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:27:38,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-07-21 01:27:38,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:38,777 INFO L225 Difference]: With dead ends: 571 [2020-07-21 01:27:38,777 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 01:27:38,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 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 01:27:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 01:27:38,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 01:27:38,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 01:27:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 01:27:38,865 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 40 [2020-07-21 01:27:38,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:38,865 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 01:27:38,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:27:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 01:27:38,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-21 01:27:38,871 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:38,871 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:39,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:39,086 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:39,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:39,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1869128306, now seen corresponding path program 1 times [2020-07-21 01:27:39,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:39,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171437068] [2020-07-21 01:27:39,088 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:27:39,191 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:27:39,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:39,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:27:39,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:39,272 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:27:39,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:39,367 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:27:39,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171437068] [2020-07-21 01:27:39,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:27:39,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-07-21 01:27:39,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648596385] [2020-07-21 01:27:39,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:27:39,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:39,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:27:39,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:39,372 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 01:27:40,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:40,252 INFO L93 Difference]: Finished difference Result 586 states and 786 transitions. [2020-07-21 01:27:40,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:27:40,253 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2020-07-21 01:27:40,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:40,259 INFO L225 Difference]: With dead ends: 586 [2020-07-21 01:27:40,259 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 01:27:40,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:40,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 01:27:40,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 01:27:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 01:27:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 784 transitions. [2020-07-21 01:27:40,302 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 784 transitions. Word has length 110 [2020-07-21 01:27:40,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:40,303 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 784 transitions. [2020-07-21 01:27:40,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:27:40,303 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 784 transitions. [2020-07-21 01:27:40,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-21 01:27:40,307 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:40,307 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:40,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:40,522 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:40,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:40,523 INFO L82 PathProgramCache]: Analyzing trace with hash 52272842, now seen corresponding path program 1 times [2020-07-21 01:27:40,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:40,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1923401288] [2020-07-21 01:27:40,526 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:27:40,625 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:27:40,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:40,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:27:40,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:40,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:27:40,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1923401288] [2020-07-21 01:27:40,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:27:40,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:27:40,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862299137] [2020-07-21 01:27:40,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:27:40,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:40,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:27:40,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:27:40,726 INFO L87 Difference]: Start difference. First operand 584 states and 784 transitions. Second operand 5 states. [2020-07-21 01:27:41,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:41,731 INFO L93 Difference]: Finished difference Result 1472 states and 2014 transitions. [2020-07-21 01:27:41,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:27:41,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-07-21 01:27:41,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:41,744 INFO L225 Difference]: With dead ends: 1472 [2020-07-21 01:27:41,744 INFO L226 Difference]: Without dead ends: 894 [2020-07-21 01:27:41,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:27:41,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-07-21 01:27:41,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 880. [2020-07-21 01:27:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-07-21 01:27:41,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1114 transitions. [2020-07-21 01:27:41,804 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1114 transitions. Word has length 162 [2020-07-21 01:27:41,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:41,805 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 1114 transitions. [2020-07-21 01:27:41,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:27:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1114 transitions. [2020-07-21 01:27:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-21 01:27:41,810 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:41,810 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:27:42,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:42,025 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:42,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:42,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1027116093, now seen corresponding path program 1 times [2020-07-21 01:27:42,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:42,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672461614] [2020-07-21 01:27:42,028 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:27:42,154 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:27:42,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:42,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:27:42,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:42,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:27:42,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672461614] [2020-07-21 01:27:42,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:27:42,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:27:42,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471397039] [2020-07-21 01:27:42,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:27:42,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:42,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:27:42,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:27:42,381 INFO L87 Difference]: Start difference. First operand 880 states and 1114 transitions. Second operand 7 states. [2020-07-21 01:27:43,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:43,875 INFO L93 Difference]: Finished difference Result 2352 states and 3091 transitions. [2020-07-21 01:27:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:27:43,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2020-07-21 01:27:43,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:43,886 INFO L225 Difference]: With dead ends: 2352 [2020-07-21 01:27:43,886 INFO L226 Difference]: Without dead ends: 1478 [2020-07-21 01:27:43,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 379 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 01:27:43,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2020-07-21 01:27:43,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1474. [2020-07-21 01:27:43,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2020-07-21 01:27:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 1882 transitions. [2020-07-21 01:27:43,968 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 1882 transitions. Word has length 192 [2020-07-21 01:27:43,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:43,970 INFO L479 AbstractCegarLoop]: Abstraction has 1474 states and 1882 transitions. [2020-07-21 01:27:43,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:27:43,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 1882 transitions. [2020-07-21 01:27:43,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-07-21 01:27:43,985 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:43,985 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:27:44,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:44,188 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:44,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:44,189 INFO L82 PathProgramCache]: Analyzing trace with hash 2063499112, now seen corresponding path program 1 times [2020-07-21 01:27:44,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:44,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605639471] [2020-07-21 01:27:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:27:44,278 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:27:44,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:44,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 01:27:44,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:44,346 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 01:27:44,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:27:44,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605639471] [2020-07-21 01:27:44,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:27:44,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:27:44,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115901248] [2020-07-21 01:27:44,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:27:44,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:44,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:27:44,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:27:44,349 INFO L87 Difference]: Start difference. First operand 1474 states and 1882 transitions. Second operand 5 states. [2020-07-21 01:27:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:45,401 INFO L93 Difference]: Finished difference Result 3119 states and 3991 transitions. [2020-07-21 01:27:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:27:45,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2020-07-21 01:27:45,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:45,412 INFO L225 Difference]: With dead ends: 3119 [2020-07-21 01:27:45,412 INFO L226 Difference]: Without dead ends: 1651 [2020-07-21 01:27:45,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:27:45,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2020-07-21 01:27:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1490. [2020-07-21 01:27:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-07-21 01:27:45,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1908 transitions. [2020-07-21 01:27:45,472 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1908 transitions. Word has length 209 [2020-07-21 01:27:45,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:45,473 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1908 transitions. [2020-07-21 01:27:45,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:27:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1908 transitions. [2020-07-21 01:27:45,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-07-21 01:27:45,479 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:45,480 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:27:45,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:45,693 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:45,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:45,694 INFO L82 PathProgramCache]: Analyzing trace with hash 38552933, now seen corresponding path program 1 times [2020-07-21 01:27:45,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:45,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648007100] [2020-07-21 01:27:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:27:45,807 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:27:45,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:45,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:27:45,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:45,843 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:27:45,843 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 285 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 01:27:45,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:45,991 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:45,992 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:45,995 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:27:45,996 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:27:46,170 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 171 proven. 82 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 01:27:46,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648007100] [2020-07-21 01:27:46,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:27:46,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:27:46,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224676596] [2020-07-21 01:27:46,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:27:46,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:46,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:27:46,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:27:46,173 INFO L87 Difference]: Start difference. First operand 1490 states and 1908 transitions. Second operand 6 states. [2020-07-21 01:27:47,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:47,279 INFO L93 Difference]: Finished difference Result 3161 states and 4183 transitions. [2020-07-21 01:27:47,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:27:47,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 279 [2020-07-21 01:27:47,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:47,291 INFO L225 Difference]: With dead ends: 3161 [2020-07-21 01:27:47,291 INFO L226 Difference]: Without dead ends: 1820 [2020-07-21 01:27:47,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 554 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:27:47,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2020-07-21 01:27:47,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1792. [2020-07-21 01:27:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1792 states. [2020-07-21 01:27:47,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2143 transitions. [2020-07-21 01:27:47,361 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2143 transitions. Word has length 279 [2020-07-21 01:27:47,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:47,362 INFO L479 AbstractCegarLoop]: Abstraction has 1792 states and 2143 transitions. [2020-07-21 01:27:47,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:27:47,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2143 transitions. [2020-07-21 01:27:47,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-07-21 01:27:47,370 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:47,370 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:27:47,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:47,584 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:47,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:47,584 INFO L82 PathProgramCache]: Analyzing trace with hash 879324746, now seen corresponding path program 1 times [2020-07-21 01:27:47,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:47,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970053754] [2020-07-21 01:27:47,585 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:27:47,709 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:27:47,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:47,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-21 01:27:47,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:47,939 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 01:27:47,940 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:27:47,941 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:27:47,946 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:27:47,947 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:27:47,949 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:27:47,951 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:27:47,952 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:27:48,201 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 303 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 01:27:48,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:27:48,499 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:27:48,499 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:27:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 180 proven. 82 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 01:27:48,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970053754] [2020-07-21 01:27:48,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:27:48,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 15 [2020-07-21 01:27:48,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628501451] [2020-07-21 01:27:48,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-21 01:27:48,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:27:48,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-21 01:27:48,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:27:48,756 INFO L87 Difference]: Start difference. First operand 1792 states and 2143 transitions. Second operand 15 states. [2020-07-21 01:27:50,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:27:50,487 INFO L93 Difference]: Finished difference Result 3639 states and 4449 transitions. [2020-07-21 01:27:50,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 01:27:50,491 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 288 [2020-07-21 01:27:50,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:27:50,500 INFO L225 Difference]: With dead ends: 3639 [2020-07-21 01:27:50,501 INFO L226 Difference]: Without dead ends: 1937 [2020-07-21 01:27:50,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2020-07-21 01:27:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2020-07-21 01:27:50,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1794. [2020-07-21 01:27:50,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1794 states. [2020-07-21 01:27:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2141 transitions. [2020-07-21 01:27:50,557 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2141 transitions. Word has length 288 [2020-07-21 01:27:50,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:27:50,557 INFO L479 AbstractCegarLoop]: Abstraction has 1794 states and 2141 transitions. [2020-07-21 01:27:50,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-21 01:27:50,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2141 transitions. [2020-07-21 01:27:50,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-07-21 01:27:50,564 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:27:50,565 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:50,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:27:50,778 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:27:50,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:27:50,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1719608750, now seen corresponding path program 1 times [2020-07-21 01:27:50,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:27:50,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662004447] [2020-07-21 01:27:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:27:50,913 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:27:50,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:27:50,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 01:27:50,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:27:50,962 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:27:50,963 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:50,964 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:27:50,967 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:50,968 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:50,969 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:27:50,972 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:27:50,974 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:28:14,236 WARN L193 SmtUtils]: Spent 23.22 s on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2020-07-21 01:28:14,282 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:28:14,423 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-07-21 01:28:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 312 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 01:28:14,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:28:14,857 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:28:15,071 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:15,073 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:15,074 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,074 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,076 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:15,077 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,079 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,080 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:15,082 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:28:15,084 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:15,084 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:15,085 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:28:15,086 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:28:15,088 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:28:15,090 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:15,091 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:15,091 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,092 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,093 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:15,095 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,096 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,097 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:15,099 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:28:15,100 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:15,100 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,101 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,102 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:28:15,104 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,106 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:28:15,106 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:28:17,923 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 67 DAG size of output: 20 [2020-07-21 01:28:17,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662004447] [2020-07-21 01:28:17,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:28:17,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 01:28:17,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811739200] [2020-07-21 01:28:17,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 01:28:17,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:28:17,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 01:28:17,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:28:17,928 INFO L87 Difference]: Start difference. First operand 1794 states and 2141 transitions. Second operand 9 states. [2020-07-21 01:28:20,370 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-07-21 01:29:29,313 WARN L193 SmtUtils]: Spent 27.53 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2020-07-21 01:29:32,009 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2020-07-21 01:29:35,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:35,647 INFO L93 Difference]: Finished difference Result 4919 states and 6135 transitions. [2020-07-21 01:29:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-21 01:29:35,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 324 [2020-07-21 01:29:35,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:35,671 INFO L225 Difference]: With dead ends: 4919 [2020-07-21 01:29:35,671 INFO L226 Difference]: Without dead ends: 3274 [2020-07-21 01:29:35,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 515 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 57.6s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2020-07-21 01:29:35,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2020-07-21 01:29:35,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3250. [2020-07-21 01:29:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3250 states. [2020-07-21 01:29:35,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 3949 transitions. [2020-07-21 01:29:35,773 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 3949 transitions. Word has length 324 [2020-07-21 01:29:35,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:35,774 INFO L479 AbstractCegarLoop]: Abstraction has 3250 states and 3949 transitions. [2020-07-21 01:29:35,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 01:29:35,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 3949 transitions. [2020-07-21 01:29:35,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-07-21 01:29:35,786 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:35,787 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:29:35,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:36,000 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:36,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:36,001 INFO L82 PathProgramCache]: Analyzing trace with hash -885245467, now seen corresponding path program 1 times [2020-07-21 01:29:36,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:36,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599665707] [2020-07-21 01:29:36,002 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:29:36,294 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:29:36,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:36,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:29:36,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:36,421 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-21 01:29:36,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:29:36,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599665707] [2020-07-21 01:29:36,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:29:36,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:29:36,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130993793] [2020-07-21 01:29:36,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:29:36,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:36,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:29:36,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:29:36,424 INFO L87 Difference]: Start difference. First operand 3250 states and 3949 transitions. Second operand 3 states. [2020-07-21 01:29:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:37,349 INFO L93 Difference]: Finished difference Result 6351 states and 7741 transitions. [2020-07-21 01:29:37,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:29:37,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 343 [2020-07-21 01:29:37,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:37,367 INFO L225 Difference]: With dead ends: 6351 [2020-07-21 01:29:37,367 INFO L226 Difference]: Without dead ends: 3250 [2020-07-21 01:29:37,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 341 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 01:29:37,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-07-21 01:29:37,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2964. [2020-07-21 01:29:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2964 states. [2020-07-21 01:29:37,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3512 transitions. [2020-07-21 01:29:37,470 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3512 transitions. Word has length 343 [2020-07-21 01:29:37,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:37,471 INFO L479 AbstractCegarLoop]: Abstraction has 2964 states and 3512 transitions. [2020-07-21 01:29:37,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:29:37,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3512 transitions. [2020-07-21 01:29:37,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-07-21 01:29:37,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:37,485 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2020-07-21 01:29:37,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:37,698 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:37,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:37,699 INFO L82 PathProgramCache]: Analyzing trace with hash -924465415, now seen corresponding path program 1 times [2020-07-21 01:29:37,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:37,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579134018] [2020-07-21 01:29:37,699 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) 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 01:29:37,914 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:29:37,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:37,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 01:29:37,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:37,929 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:29:37,930 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:29:37,931 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:29:37,932 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:29:37,932 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:29:38,182 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-07-21 01:29:38,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:29:38,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579134018] [2020-07-21 01:29:38,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:29:38,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:29:38,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614357230] [2020-07-21 01:29:38,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:29:38,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:38,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:29:38,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:29:38,185 INFO L87 Difference]: Start difference. First operand 2964 states and 3512 transitions. Second operand 3 states. [2020-07-21 01:29:40,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:40,064 INFO L93 Difference]: Finished difference Result 6929 states and 8362 transitions. [2020-07-21 01:29:40,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:29:40,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 349 [2020-07-21 01:29:40,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:40,066 INFO L225 Difference]: With dead ends: 6929 [2020-07-21 01:29:40,067 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:29:40,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 347 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 01:29:40,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:29:40,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:29:40,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:29:40,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:29:40,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2020-07-21 01:29:40,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:40,082 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:29:40,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:29:40,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:29:40,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:29:40,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:40,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:29:40,797 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 158 [2020-07-21 01:29:40,927 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 158 [2020-07-21 01:29:41,115 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 31 [2020-07-21 01:29:42,266 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 191 DAG size of output: 53 [2020-07-21 01:29:43,195 WARN L193 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 47 [2020-07-21 01:29:44,147 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 47 [2020-07-21 01:29:44,152 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:29:44,152 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (or (< 7 ~a19~0) (< |old(~a19~0)| 8)) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 01:29:44,152 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:29:44,153 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 01:29:44,153 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,153 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,153 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,153 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,153 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,153 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,154 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 01:29:44,154 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 01:29:44,154 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 01:29:44,154 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 01:29:44,154 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 01:29:44,154 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 01:29:44,154 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 01:29:44,155 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 01:29:44,155 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 01:29:44,155 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 01:29:44,155 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 01:29:44,155 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,155 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,155 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,155 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,156 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,156 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 01:29:44,156 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 01:29:44,156 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 01:29:44,156 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 01:29:44,156 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 01:29:44,156 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 01:29:44,156 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 01:29:44,157 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 01:29:44,157 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 01:29:44,157 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 01:29:44,157 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 01:29:44,157 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 01:29:44,157 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 01:29:44,157 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2020-07-21 01:29:44,158 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 01:29:44,158 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,158 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,158 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,158 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,158 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,158 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 01:29:44,159 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:29:44,159 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 01:29:44,159 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 01:29:44,159 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 01:29:44,159 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 01:29:44,159 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 01:29:44,159 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 01:29:44,159 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 01:29:44,159 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 01:29:44,160 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,160 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,160 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,160 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,160 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,160 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 01:29:44,160 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 01:29:44,160 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 01:29:44,161 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 01:29:44,161 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 01:29:44,161 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 01:29:44,161 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 01:29:44,161 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 01:29:44,161 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 01:29:44,161 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 01:29:44,161 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 01:29:44,161 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 01:29:44,162 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 01:29:44,162 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,162 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,162 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,162 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,162 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,162 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 01:29:44,162 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 01:29:44,163 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 01:29:44,163 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 01:29:44,163 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 01:29:44,163 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 01:29:44,163 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 01:29:44,163 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 01:29:44,163 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 01:29:44,163 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,163 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,164 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,164 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,164 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,164 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,164 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,164 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 01:29:44,164 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 01:29:44,164 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 01:29:44,165 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 01:29:44,165 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 01:29:44,165 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 01:29:44,165 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 01:29:44,165 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 01:29:44,165 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 01:29:44,165 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 01:29:44,165 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 01:29:44,166 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 01:29:44,166 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 01:29:44,166 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,166 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,166 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,166 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,166 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 01:29:44,166 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,167 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,167 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 01:29:44,167 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 01:29:44,167 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 01:29:44,167 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:29:44,167 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 01:29:44,167 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 01:29:44,167 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 01:29:44,168 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 01:29:44,168 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 01:29:44,168 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 01:29:44,168 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 01:29:44,168 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 01:29:44,168 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 01:29:44,168 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,168 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,169 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,169 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,169 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,169 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,169 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 01:29:44,169 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 01:29:44,169 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 01:29:44,169 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 01:29:44,169 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 01:29:44,170 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 01:29:44,170 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 01:29:44,170 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 01:29:44,170 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 01:29:44,170 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 01:29:44,170 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 01:29:44,170 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a19~0)| 9))) (.cse0 (not (= 0 ~a12~0))) (.cse1 (not (= 14 ~a4~0))) (.cse3 (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (< 7 |old(~a19~0)|)) .cse0 .cse1 .cse2 .cse3) (or (forall ((v_~a1~0_430 Int)) (let ((.cse4 (mod (+ v_~a1~0_430 39) 89))) (or (not (< 38 v_~a1~0_430)) (not (<= v_~a1~0_430 218)) (not (= 0 .cse4)) (not (<= |old(~a1~0)| (+ .cse4 206)))))) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 (not (<= |old(~a10~0)| 1))))) [2020-07-21 01:29:44,171 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 01:29:44,171 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 01:29:44,171 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 01:29:44,171 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,171 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,171 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,171 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,171 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,171 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,172 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 01:29:44,172 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 01:29:44,172 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 01:29:44,172 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 01:29:44,172 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 01:29:44,172 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 01:29:44,172 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 01:29:44,172 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 01:29:44,172 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 01:29:44,173 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 01:29:44,173 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 01:29:44,173 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 01:29:44,173 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 01:29:44,173 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,173 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,173 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,173 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,174 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,174 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,174 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 01:29:44,174 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 01:29:44,174 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 01:29:44,174 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 01:29:44,174 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 01:29:44,174 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 01:29:44,174 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 01:29:44,175 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 01:29:44,175 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 01:29:44,175 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 01:29:44,175 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 01:29:44,175 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 01:29:44,175 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,175 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,175 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,176 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,176 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,176 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:29:44,176 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 01:29:44,176 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 01:29:44,176 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 01:29:44,176 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 01:29:44,176 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 01:29:44,176 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 01:29:44,177 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 01:29:44,177 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 01:29:44,177 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 01:29:44,177 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 01:29:44,177 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 01:29:44,177 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 01:29:44,177 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:29:44,177 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (= 0 ~a12~0) (< 7 ~a19~0) (= 23 ~a1~0)) [2020-07-21 01:29:44,178 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:29:44,178 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:29:44,178 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< 7 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 01:29:44,178 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:29:44,178 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (not (<= |old(~a10~0)| 0)) (not (< 7 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse0 (< 7 ~a19~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (exists ((v_~a1~0_430 Int)) (let ((.cse1 (mod (+ v_~a1~0_430 39) 89))) (and (<= v_~a1~0_430 218) (<= ~a1~0 (+ .cse1 206)) (< 38 v_~a1~0_430) (= 0 .cse1))))))) [2020-07-21 01:29:44,178 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 01:29:44,178 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 01:29:44,179 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (not (<= |old(~a10~0)| 0)) (not (< 7 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse0 (< 7 ~a19~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (exists ((v_~a1~0_430 Int)) (let ((.cse1 (mod (+ v_~a1~0_430 39) 89))) (and (<= v_~a1~0_430 218) (<= ~a1~0 (+ .cse1 206)) (< 38 v_~a1~0_430) (= 0 .cse1))))))) [2020-07-21 01:29:44,179 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:29:44,191 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,192 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,192 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,202 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:29:44 BoogieIcfgContainer [2020-07-21 01:29:44,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:29:44,207 INFO L168 Benchmark]: Toolchain (without parser) took 129378.73 ms. Allocated memory was 135.3 MB in the beginning and 607.1 MB in the end (delta: 471.9 MB). Free memory was 98.8 MB in the beginning and 507.6 MB in the end (delta: -408.8 MB). Peak memory consumption was 463.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:29:44,208 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 01:29:44,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.80 ms. Allocated memory was 135.3 MB in the beginning and 200.8 MB in the end (delta: 65.5 MB). Free memory was 98.6 MB in the beginning and 166.6 MB in the end (delta: -68.1 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:29:44,209 INFO L168 Benchmark]: Boogie Preprocessor took 122.21 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 161.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:29:44,210 INFO L168 Benchmark]: RCFGBuilder took 1414.19 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 161.4 MB in the beginning and 176.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:29:44,211 INFO L168 Benchmark]: TraceAbstraction took 127011.78 ms. Allocated memory was 228.1 MB in the beginning and 607.1 MB in the end (delta: 379.1 MB). Free memory was 176.6 MB in the beginning and 507.6 MB in the end (delta: -331.0 MB). Peak memory consumption was 448.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:29:44,214 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 823.80 ms. Allocated memory was 135.3 MB in the beginning and 200.8 MB in the end (delta: 65.5 MB). Free memory was 98.6 MB in the beginning and 166.6 MB in the end (delta: -68.1 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.21 ms. Allocated memory is still 200.8 MB. Free memory was 166.6 MB in the beginning and 161.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1414.19 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 161.4 MB in the beginning and 176.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 127011.78 ms. Allocated memory was 228.1 MB in the beginning and 607.1 MB in the end (delta: 379.1 MB). Free memory was 176.6 MB in the beginning and 507.6 MB in the end (delta: -331.0 MB). Peak memory consumption was 448.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 582]: Loop Invariant [2020-07-21 01:29:44,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,227 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,227 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,227 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] [2020-07-21 01:29:44,227 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_430,QUANTIFIED] Derived loop invariant: (((((((a10 <= 1 || !(\old(a10) <= 0)) || !(7 < \old(a19))) || !(23 == \old(a1))) || !(0 == a12)) || (a19 <= 9 && 7 < a19)) || !(14 == a4)) || !(\old(a19) <= 9)) || (a19 <= 9 && (\exists v_~a1~0_430 : int :: ((v_~a1~0_430 <= 218 && a1 <= (v_~a1~0_430 + 39) % 89 + 206) && 38 < v_~a1~0_430) && 0 == (v_~a1~0_430 + 39) % 89)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 123.0s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 89.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 3639 SDslu, 316 SDs, 0 SdLazy, 7358 SolverSat, 1746 SolverUnsat, 18 SolverUnknown, 0 SolverNotchecked, 52.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3402 GetRequests, 3317 SyntacticMatches, 4 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 58.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3250occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 660 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 127 PreInvPairs, 185 NumberOfFragments, 315 HoareAnnotationTreeSize, 127 FomulaSimplifications, 4700 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12623 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 29.4s InterpolantComputationTime, 2296 NumberOfCodeBlocks, 1899 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 3151 ConstructedInterpolants, 42 QuantifiedInterpolants, 3815781 SizeOfPredicates, 23 NumberOfNonLiveVariables, 3445 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 2684/2890 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...