/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/Problem02_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:24:46,997 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:24:47,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:24:47,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:24:47,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:24:47,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:24:47,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:24:47,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:24:47,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:24:47,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:24:47,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:24:47,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:24:47,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:24:47,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:24:47,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:24:47,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:24:47,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:24:47,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:24:47,090 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 01:24:47,105 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:24:47,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:24:47,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:24:47,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:24:47,108 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:24:47,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:24:47,109 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:24:47,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:24:47,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:24:47,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:24:47,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:24:47,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:24:47,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:24:47,111 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:24:47,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:24:47,112 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:24:47,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:24:47,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:24:47,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:24:47,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:24:47,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:24:47,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:24:47,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:24:47,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:24:47,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:24:47,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:24:47,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:47,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:24:47,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:24:47,114 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 01:24:47,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:24:47,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:24:47,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:24:47,439 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:24:47,440 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:24:47,441 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label30.c [2020-07-21 01:24:47,508 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a74e493/4b1247662e8c4118b394bc5886df0aa8/FLAGb825e1fb9 [2020-07-21 01:24:48,069 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:24:48,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label30.c [2020-07-21 01:24:48,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a74e493/4b1247662e8c4118b394bc5886df0aa8/FLAGb825e1fb9 [2020-07-21 01:24:48,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a74e493/4b1247662e8c4118b394bc5886df0aa8 [2020-07-21 01:24:48,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:24:48,355 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:24:48,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:24:48,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:24:48,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:24:48,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:24:48" (1/1) ... [2020-07-21 01:24:48,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@480139cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:48, skipping insertion in model container [2020-07-21 01:24:48,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:24:48" (1/1) ... [2020-07-21 01:24:48,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:24:48,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:24:49,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:24:49,022 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:24:49,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:24:49,205 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:24:49,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49 WrapperNode [2020-07-21 01:24:49,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:24:49,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:24:49,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:24:49,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:24:49,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49" (1/1) ... [2020-07-21 01:24:49,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49" (1/1) ... [2020-07-21 01:24:49,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49" (1/1) ... [2020-07-21 01:24:49,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49" (1/1) ... [2020-07-21 01:24:49,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49" (1/1) ... [2020-07-21 01:24:49,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49" (1/1) ... [2020-07-21 01:24:49,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49" (1/1) ... [2020-07-21 01:24:49,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:24:49,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:24:49,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:24:49,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:24:49,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49" (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 01:24:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:24:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:24:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:24:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:24:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:24:49,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:24:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:24:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:24:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:24:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:24:49,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:24:50,508 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:24:50,509 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:24:50,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:50 BoogieIcfgContainer [2020-07-21 01:24:50,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:24:50,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:24:50,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:24:50,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:24:50,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:24:48" (1/3) ... [2020-07-21 01:24:50,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ee5385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:50, skipping insertion in model container [2020-07-21 01:24:50,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:24:49" (2/3) ... [2020-07-21 01:24:50,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39ee5385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:50, skipping insertion in model container [2020-07-21 01:24:50,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:50" (3/3) ... [2020-07-21 01:24:50,529 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label30.c [2020-07-21 01:24:50,540 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:24:50,548 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:24:50,562 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:24:50,589 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:24:50,589 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:24:50,589 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:24:50,590 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:24:50,590 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:24:50,590 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:24:50,590 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:24:50,591 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:24:50,616 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:24:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 01:24:50,631 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:50,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:50,633 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:50,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:50,641 INFO L82 PathProgramCache]: Analyzing trace with hash -375142418, now seen corresponding path program 1 times [2020-07-21 01:24:50,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:50,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662510016] [2020-07-21 01:24:50,651 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 01:24:50,817 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:50,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:50,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:24:50,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:51,333 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:24:51,337 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:24:51,338 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:24:51,437 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 01:24:51,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:51,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662510016] [2020-07-21 01:24:51,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:51,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:24:51,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239915] [2020-07-21 01:24:51,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:24:51,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:51,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:24:51,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:24:51,468 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:24:52,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:52,676 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:24:52,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:24:52,681 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-07-21 01:24:52,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:52,701 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:24:52,701 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:24:52,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:24:52,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:24:52,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:24:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:24:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:24:52,770 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 134 [2020-07-21 01:24:52,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:52,771 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:24:52,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:24:52,771 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:24:52,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 01:24:52,775 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:52,775 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:52,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:52,990 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:52,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:52,992 INFO L82 PathProgramCache]: Analyzing trace with hash 19483679, now seen corresponding path program 1 times [2020-07-21 01:24:52,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:52,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630498611] [2020-07-21 01:24:52,993 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 01:24:53,089 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:53,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:53,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:24:53,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:53,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:53,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:53,994 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:24:53,995 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:24:53,997 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:24:53,998 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:24:54,000 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:24:54,019 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:24:54,019 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:54,054 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:54,117 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:54,204 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:54,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630498611] [2020-07-21 01:24:54,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:54,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:24:54,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140672128] [2020-07-21 01:24:54,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:24:54,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:54,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:24:54,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:24:54,208 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:24:55,147 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:24:56,187 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:24:56,423 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-07-21 01:24:57,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:57,459 INFO L93 Difference]: Finished difference Result 740 states and 1084 transitions. [2020-07-21 01:24:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:24:57,464 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 143 [2020-07-21 01:24:57,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:57,470 INFO L225 Difference]: With dead ends: 740 [2020-07-21 01:24:57,470 INFO L226 Difference]: Without dead ends: 425 [2020-07-21 01:24:57,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 263 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:24:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-21 01:24:57,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 393. [2020-07-21 01:24:57,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:24:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 534 transitions. [2020-07-21 01:24:57,513 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 534 transitions. Word has length 143 [2020-07-21 01:24:57,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:57,514 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 534 transitions. [2020-07-21 01:24:57,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:24:57,514 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 534 transitions. [2020-07-21 01:24:57,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 01:24:57,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:57,518 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:57,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:57,733 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:57,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:57,734 INFO L82 PathProgramCache]: Analyzing trace with hash -93820777, now seen corresponding path program 1 times [2020-07-21 01:24:57,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:57,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807103944] [2020-07-21 01:24:57,736 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 01:24:57,845 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:57,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:57,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-21 01:24:57,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:58,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:58,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:58,830 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 01:24:58,832 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 01:24:58,833 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:24:58,834 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:24:58,835 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:24:58,861 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 5, 1] term [2020-07-21 01:24:58,862 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:58,901 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:58,975 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:59,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807103944] [2020-07-21 01:24:59,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:59,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:24:59,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130083523] [2020-07-21 01:24:59,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:24:59,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:59,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:24:59,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:24:59,114 INFO L87 Difference]: Start difference. First operand 393 states and 534 transitions. Second operand 21 states. [2020-07-21 01:25:00,162 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-07-21 01:25:01,733 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:25:02,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:02,408 INFO L93 Difference]: Finished difference Result 902 states and 1244 transitions. [2020-07-21 01:25:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-21 01:25:02,408 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 147 [2020-07-21 01:25:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:02,416 INFO L225 Difference]: With dead ends: 902 [2020-07-21 01:25:02,416 INFO L226 Difference]: Without dead ends: 515 [2020-07-21 01:25:02,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 271 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=423, Invalid=1059, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 01:25:02,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-07-21 01:25:02,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 478. [2020-07-21 01:25:02,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 01:25:02,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 623 transitions. [2020-07-21 01:25:02,448 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 623 transitions. Word has length 147 [2020-07-21 01:25:02,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:02,449 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 623 transitions. [2020-07-21 01:25:02,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:25:02,449 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 623 transitions. [2020-07-21 01:25:02,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-21 01:25:02,452 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:02,452 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:25:02,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:02,667 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:02,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:02,668 INFO L82 PathProgramCache]: Analyzing trace with hash 445705455, now seen corresponding path program 1 times [2020-07-21 01:25:02,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:02,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145230051] [2020-07-21 01:25:02,669 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 01:25:02,829 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:02,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:02,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-21 01:25:02,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:02,893 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:02,894 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:25:02,895 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:25:02,976 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:25:02,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:25:02,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145230051] [2020-07-21 01:25:02,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:25:02,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-21 01:25:02,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854449390] [2020-07-21 01:25:02,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:25:02,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:02,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:25:02,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:25:02,978 INFO L87 Difference]: Start difference. First operand 478 states and 623 transitions. Second operand 4 states. [2020-07-21 01:25:03,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:03,681 INFO L93 Difference]: Finished difference Result 1039 states and 1410 transitions. [2020-07-21 01:25:03,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:25:03,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 169 [2020-07-21 01:25:03,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:03,686 INFO L225 Difference]: With dead ends: 1039 [2020-07-21 01:25:03,686 INFO L226 Difference]: Without dead ends: 478 [2020-07-21 01:25:03,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-21 01:25:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-07-21 01:25:03,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2020-07-21 01:25:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-21 01:25:03,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 620 transitions. [2020-07-21 01:25:03,718 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 620 transitions. Word has length 169 [2020-07-21 01:25:03,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:03,718 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 620 transitions. [2020-07-21 01:25:03,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:25:03,718 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 620 transitions. [2020-07-21 01:25:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 01:25:03,721 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:03,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:25:03,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:03,931 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:03,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:03,932 INFO L82 PathProgramCache]: Analyzing trace with hash -151805330, now seen corresponding path program 1 times [2020-07-21 01:25:03,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:03,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619838004] [2020-07-21 01:25:03,933 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 01:25:04,031 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:04,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:04,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-21 01:25:04,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:04,651 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:04,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:05,122 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:25:05,127 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:25:05,128 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:25:05,131 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:05,132 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:05,446 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2020-07-21 01:25:05,449 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 2, 1] term [2020-07-21 01:25:05,449 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:05,533 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:05,629 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:05,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619838004] [2020-07-21 01:25:05,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:05,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2020-07-21 01:25:05,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658548666] [2020-07-21 01:25:05,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-21 01:25:05,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:05,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-21 01:25:05,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2020-07-21 01:25:05,809 INFO L87 Difference]: Start difference. First operand 478 states and 620 transitions. Second operand 23 states. [2020-07-21 01:25:07,993 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-07-21 01:25:08,423 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:25:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:10,321 INFO L93 Difference]: Finished difference Result 1075 states and 1427 transitions. [2020-07-21 01:25:10,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-21 01:25:10,322 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 168 [2020-07-21 01:25:10,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:10,327 INFO L225 Difference]: With dead ends: 1075 [2020-07-21 01:25:10,327 INFO L226 Difference]: Without dead ends: 593 [2020-07-21 01:25:10,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 312 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2020-07-21 01:25:10,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-07-21 01:25:10,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 556. [2020-07-21 01:25:10,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 01:25:10,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 701 transitions. [2020-07-21 01:25:10,350 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 701 transitions. Word has length 168 [2020-07-21 01:25:10,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:10,351 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 701 transitions. [2020-07-21 01:25:10,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-21 01:25:10,351 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 701 transitions. [2020-07-21 01:25:10,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-21 01:25:10,354 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:10,354 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:25:10,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:10,568 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:10,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:10,569 INFO L82 PathProgramCache]: Analyzing trace with hash 2053173065, now seen corresponding path program 1 times [2020-07-21 01:25:10,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:10,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556727896] [2020-07-21 01:25:10,570 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 01:25:10,672 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:10,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:10,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-21 01:25:10,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 40 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:10,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:11,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556727896] [2020-07-21 01:25:11,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:11,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2020-07-21 01:25:11,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314650247] [2020-07-21 01:25:11,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:25:11,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:11,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:25:11,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:25:11,099 INFO L87 Difference]: Start difference. First operand 556 states and 701 transitions. Second operand 10 states. [2020-07-21 01:25:12,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:12,644 INFO L93 Difference]: Finished difference Result 1549 states and 2100 transitions. [2020-07-21 01:25:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 01:25:12,645 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2020-07-21 01:25:12,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:12,650 INFO L225 Difference]: With dead ends: 1549 [2020-07-21 01:25:12,651 INFO L226 Difference]: Without dead ends: 906 [2020-07-21 01:25:12,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2020-07-21 01:25:12,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-07-21 01:25:12,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 863. [2020-07-21 01:25:12,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-07-21 01:25:12,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1073 transitions. [2020-07-21 01:25:12,693 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1073 transitions. Word has length 176 [2020-07-21 01:25:12,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:12,694 INFO L479 AbstractCegarLoop]: Abstraction has 863 states and 1073 transitions. [2020-07-21 01:25:12,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:25:12,694 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1073 transitions. [2020-07-21 01:25:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-21 01:25:12,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:12,701 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, 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] [2020-07-21 01:25:12,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:12,916 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:12,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:12,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1837653488, now seen corresponding path program 1 times [2020-07-21 01:25:12,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:12,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077679136] [2020-07-21 01:25:12,917 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 01:25:13,005 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:13,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:13,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:13,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:13,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:13,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077679136] [2020-07-21 01:25:13,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:13,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:13,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985235597] [2020-07-21 01:25:13,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:13,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:13,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:13,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:13,148 INFO L87 Difference]: Start difference. First operand 863 states and 1073 transitions. Second operand 7 states. [2020-07-21 01:25:14,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:14,770 INFO L93 Difference]: Finished difference Result 2791 states and 3703 transitions. [2020-07-21 01:25:14,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:25:14,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-07-21 01:25:14,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:14,785 INFO L225 Difference]: With dead ends: 2791 [2020-07-21 01:25:14,786 INFO L226 Difference]: Without dead ends: 1934 [2020-07-21 01:25:14,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 421 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:25:14,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2020-07-21 01:25:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1919. [2020-07-21 01:25:14,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1919 states. [2020-07-21 01:25:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1919 states to 1919 states and 2476 transitions. [2020-07-21 01:25:14,867 INFO L78 Accepts]: Start accepts. Automaton has 1919 states and 2476 transitions. Word has length 213 [2020-07-21 01:25:14,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:14,868 INFO L479 AbstractCegarLoop]: Abstraction has 1919 states and 2476 transitions. [2020-07-21 01:25:14,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1919 states and 2476 transitions. [2020-07-21 01:25:14,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-21 01:25:14,875 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:14,875 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:25:15,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:15,089 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:15,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:15,090 INFO L82 PathProgramCache]: Analyzing trace with hash -676860672, now seen corresponding path program 1 times [2020-07-21 01:25:15,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:15,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868391302] [2020-07-21 01:25:15,091 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 01:25:15,180 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:15,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:15,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:15,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:15,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:15,310 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:15,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868391302] [2020-07-21 01:25:15,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:15,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:25:15,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620519634] [2020-07-21 01:25:15,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:25:15,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:15,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:25:15,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:25:15,313 INFO L87 Difference]: Start difference. First operand 1919 states and 2476 transitions. Second operand 6 states. [2020-07-21 01:25:16,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:16,345 INFO L93 Difference]: Finished difference Result 4465 states and 5830 transitions. [2020-07-21 01:25:16,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:25:16,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-07-21 01:25:16,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:16,358 INFO L225 Difference]: With dead ends: 4465 [2020-07-21 01:25:16,359 INFO L226 Difference]: Without dead ends: 2552 [2020-07-21 01:25:16,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 438 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 01:25:16,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2020-07-21 01:25:16,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2535. [2020-07-21 01:25:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2535 states. [2020-07-21 01:25:16,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3061 transitions. [2020-07-21 01:25:16,434 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3061 transitions. Word has length 221 [2020-07-21 01:25:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:16,434 INFO L479 AbstractCegarLoop]: Abstraction has 2535 states and 3061 transitions. [2020-07-21 01:25:16,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:25:16,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3061 transitions. [2020-07-21 01:25:16,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-21 01:25:16,443 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:16,444 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 01:25:16,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:16,658 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:16,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:16,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1243216343, now seen corresponding path program 1 times [2020-07-21 01:25:16,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:16,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059770065] [2020-07-21 01:25:16,660 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 01:25:16,782 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:16,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:16,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:25:16,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:16,813 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:25:16,813 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:16,835 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:25:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:25:16,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:16,962 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:16,963 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:16,987 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:17,043 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:17,046 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:17,105 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:25:17,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059770065] [2020-07-21 01:25:17,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:17,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:17,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140259681] [2020-07-21 01:25:17,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:17,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:17,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:17,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:17,113 INFO L87 Difference]: Start difference. First operand 2535 states and 3061 transitions. Second operand 7 states. [2020-07-21 01:25:18,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:18,797 INFO L93 Difference]: Finished difference Result 5987 states and 7310 transitions. [2020-07-21 01:25:18,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:25:18,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 244 [2020-07-21 01:25:18,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:18,813 INFO L225 Difference]: With dead ends: 5987 [2020-07-21 01:25:18,813 INFO L226 Difference]: Without dead ends: 3458 [2020-07-21 01:25:18,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 488 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:25:18,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3458 states. [2020-07-21 01:25:18,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3458 to 3428. [2020-07-21 01:25:18,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-07-21 01:25:18,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 3973 transitions. [2020-07-21 01:25:18,907 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 3973 transitions. Word has length 244 [2020-07-21 01:25:18,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:18,908 INFO L479 AbstractCegarLoop]: Abstraction has 3428 states and 3973 transitions. [2020-07-21 01:25:18,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:18,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 3973 transitions. [2020-07-21 01:25:18,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-21 01:25:18,917 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:18,918 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 01:25:19,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:19,131 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:19,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:19,131 INFO L82 PathProgramCache]: Analyzing trace with hash 156271065, now seen corresponding path program 1 times [2020-07-21 01:25:19,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:19,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959125760] [2020-07-21 01:25:19,132 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 01:25:19,265 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:25:19,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:19,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:19,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:19,310 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 01:25:19,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:25:19,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959125760] [2020-07-21 01:25:19,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:25:19,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:25:19,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418065151] [2020-07-21 01:25:19,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:25:19,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:19,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:25:19,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:25:19,312 INFO L87 Difference]: Start difference. First operand 3428 states and 3973 transitions. Second operand 3 states. [2020-07-21 01:25:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:19,928 INFO L93 Difference]: Finished difference Result 7436 states and 8724 transitions. [2020-07-21 01:25:19,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:25:19,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-07-21 01:25:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:19,948 INFO L225 Difference]: With dead ends: 7436 [2020-07-21 01:25:19,948 INFO L226 Difference]: Without dead ends: 4014 [2020-07-21 01:25:19,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 245 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 01:25:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4014 states. [2020-07-21 01:25:20,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4014 to 4010. [2020-07-21 01:25:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4010 states. [2020-07-21 01:25:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 4713 transitions. [2020-07-21 01:25:20,039 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 4713 transitions. Word has length 247 [2020-07-21 01:25:20,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:20,039 INFO L479 AbstractCegarLoop]: Abstraction has 4010 states and 4713 transitions. [2020-07-21 01:25:20,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:25:20,040 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 4713 transitions. [2020-07-21 01:25:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-21 01:25:20,050 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:20,050 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:25:20,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:20,265 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:20,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:20,266 INFO L82 PathProgramCache]: Analyzing trace with hash 378870301, now seen corresponding path program 1 times [2020-07-21 01:25:20,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:20,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954746000] [2020-07-21 01:25:20,267 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:20,366 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:20,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:20,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:25:20,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:20,443 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:25:20,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:20,524 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:25:20,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954746000] [2020-07-21 01:25:20,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:20,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 01:25:20,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095285379] [2020-07-21 01:25:20,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:25:20,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:20,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:25:20,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:25:20,526 INFO L87 Difference]: Start difference. First operand 4010 states and 4713 transitions. Second operand 8 states. [2020-07-21 01:25:21,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:21,705 INFO L93 Difference]: Finished difference Result 7654 states and 9028 transitions. [2020-07-21 01:25:21,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:25:21,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 250 [2020-07-21 01:25:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:21,719 INFO L225 Difference]: With dead ends: 7654 [2020-07-21 01:25:21,719 INFO L226 Difference]: Without dead ends: 2979 [2020-07-21 01:25:21,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:25:21,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2020-07-21 01:25:21,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2967. [2020-07-21 01:25:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2967 states. [2020-07-21 01:25:21,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 3293 transitions. [2020-07-21 01:25:21,789 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 3293 transitions. Word has length 250 [2020-07-21 01:25:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:21,789 INFO L479 AbstractCegarLoop]: Abstraction has 2967 states and 3293 transitions. [2020-07-21 01:25:21,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:25:21,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 3293 transitions. [2020-07-21 01:25:21,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-07-21 01:25:21,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:21,797 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:25:22,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:22,010 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:22,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:22,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1481323480, now seen corresponding path program 1 times [2020-07-21 01:25:22,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:22,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557641760] [2020-07-21 01:25:22,011 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:22,133 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:25:22,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:22,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:25:22,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:22,195 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 01:25:22,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 01:25:22,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557641760] [2020-07-21 01:25:22,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:22,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:25:22,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856533121] [2020-07-21 01:25:22,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:25:22,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:22,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:25:22,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:25:22,305 INFO L87 Difference]: Start difference. First operand 2967 states and 3293 transitions. Second operand 7 states. [2020-07-21 01:25:23,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:23,039 INFO L93 Difference]: Finished difference Result 6332 states and 7115 transitions. [2020-07-21 01:25:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:25:23,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 261 [2020-07-21 01:25:23,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:23,052 INFO L225 Difference]: With dead ends: 6332 [2020-07-21 01:25:23,052 INFO L226 Difference]: Without dead ends: 3277 [2020-07-21 01:25:23,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:25:23,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2020-07-21 01:25:23,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 2825. [2020-07-21 01:25:23,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2825 states. [2020-07-21 01:25:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3134 transitions. [2020-07-21 01:25:23,117 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3134 transitions. Word has length 261 [2020-07-21 01:25:23,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:23,118 INFO L479 AbstractCegarLoop]: Abstraction has 2825 states and 3134 transitions. [2020-07-21 01:25:23,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:25:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3134 transitions. [2020-07-21 01:25:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-07-21 01:25:23,124 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:23,124 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:25:23,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:23,339 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:23,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:23,340 INFO L82 PathProgramCache]: Analyzing trace with hash 582278910, now seen corresponding path program 1 times [2020-07-21 01:25:23,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:23,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914544156] [2020-07-21 01:25:23,341 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:23,462 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:25:23,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:23,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 50 conjunts are in the unsatisfiable core [2020-07-21 01:25:23,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 119 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:24,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:24,419 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2020-07-21 01:25:24,582 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-07-21 01:25:24,776 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-07-21 01:25:24,998 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-07-21 01:25:25,230 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 01:25:25,336 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 01:25:25,338 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:25:25,339 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:25:25,341 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:25:25,342 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,342 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,345 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,345 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,346 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,347 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,347 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,348 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,349 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,350 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,351 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,352 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,353 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,354 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,354 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,355 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,356 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,356 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,357 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,358 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,358 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,359 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,360 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,361 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,361 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,362 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,363 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,363 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,364 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,365 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,366 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,366 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,367 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,368 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,369 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,369 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,370 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,371 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,371 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,372 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,373 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,374 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,374 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,375 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,376 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,377 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,377 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,378 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,379 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,380 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,380 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,381 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,382 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,383 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,383 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,384 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,385 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,385 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,386 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,387 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,387 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,388 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,389 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,390 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,391 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,391 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,392 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,392 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,393 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,394 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,395 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,395 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,396 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,396 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,397 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,397 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,398 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,399 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,399 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,400 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,400 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,401 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,401 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,402 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,403 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,403 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,404 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,404 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,405 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,406 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,406 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,407 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,408 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,409 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,409 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,410 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,411 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,412 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,412 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,413 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,414 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,414 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,415 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,416 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,416 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,417 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,418 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,419 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,419 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,420 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,421 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,421 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,423 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,423 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,424 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,425 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,425 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,426 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,427 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,427 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,428 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,429 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,430 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,430 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,431 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,432 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,433 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,433 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,434 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,434 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,435 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,436 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,437 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,438 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,438 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,439 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,440 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,441 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,442 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,442 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,443 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,443 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,444 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,445 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,445 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,446 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,447 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,447 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,448 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,449 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,450 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,450 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,451 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,452 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,453 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,453 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,454 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,454 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,455 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,456 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,457 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,457 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,458 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,458 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,459 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,460 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,460 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,461 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,462 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,463 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,463 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,464 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,465 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,466 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,466 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,467 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,468 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,469 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,470 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,471 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,471 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,472 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,473 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,473 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,474 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,475 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,475 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,477 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,478 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,478 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,479 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,479 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,480 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,480 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,481 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,482 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,482 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,483 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,484 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,484 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,485 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,486 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,486 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,487 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,487 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,488 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,489 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,489 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,490 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,491 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,492 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,492 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,493 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,493 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,494 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,495 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,496 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,497 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,498 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,498 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,499 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,500 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,500 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,501 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,502 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,503 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,504 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,505 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,505 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,506 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,507 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,507 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,509 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,509 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,510 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:25:25,511 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,511 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:25:25,513 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,513 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,514 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,515 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,516 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,517 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,518 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,518 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,519 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,520 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,520 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,521 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,522 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,523 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,523 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,524 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,524 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,525 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,526 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,526 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,527 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,528 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,529 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,529 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,531 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,531 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,532 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,533 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,533 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,534 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,534 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,535 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,535 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,536 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,537 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,537 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,538 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,539 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,540 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,540 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,541 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,542 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,543 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,543 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,544 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,545 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,545 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,546 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,547 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,548 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,549 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,550 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,552 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,552 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,554 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,554 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,556 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,556 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,557 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,558 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,559 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,561 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,561 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,562 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,563 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,564 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,565 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,565 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,566 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,567 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,568 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,569 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,570 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,571 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,572 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:25,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:25:25,574 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:25:26,277 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 32 [2020-07-21 01:25:26,279 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 2, 1] term [2020-07-21 01:25:26,279 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:25:26,393 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:25:26,394 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:25:26,507 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:25:26,595 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:26,761 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:25:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 36 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:25:27,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914544156] [2020-07-21 01:25:27,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:27,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2020-07-21 01:25:27,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060079804] [2020-07-21 01:25:27,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-07-21 01:25:27,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:27,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-07-21 01:25:27,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2020-07-21 01:25:27,032 INFO L87 Difference]: Start difference. First operand 2825 states and 3134 transitions. Second operand 31 states. [2020-07-21 01:25:29,795 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2020-07-21 01:25:30,038 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2020-07-21 01:25:30,621 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2020-07-21 01:25:30,978 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-07-21 01:25:31,397 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-07-21 01:25:31,689 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2020-07-21 01:25:31,943 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-07-21 01:25:32,217 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2020-07-21 01:25:32,475 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-07-21 01:25:33,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:33,641 INFO L93 Difference]: Finished difference Result 5675 states and 6327 transitions. [2020-07-21 01:25:33,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-21 01:25:33,642 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 262 [2020-07-21 01:25:33,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:33,652 INFO L225 Difference]: With dead ends: 5675 [2020-07-21 01:25:33,652 INFO L226 Difference]: Without dead ends: 2910 [2020-07-21 01:25:33,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 494 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=796, Invalid=2174, Unknown=0, NotChecked=0, Total=2970 [2020-07-21 01:25:33,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2020-07-21 01:25:33,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2863. [2020-07-21 01:25:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2863 states. [2020-07-21 01:25:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2863 states to 2863 states and 3141 transitions. [2020-07-21 01:25:33,716 INFO L78 Accepts]: Start accepts. Automaton has 2863 states and 3141 transitions. Word has length 262 [2020-07-21 01:25:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:33,716 INFO L479 AbstractCegarLoop]: Abstraction has 2863 states and 3141 transitions. [2020-07-21 01:25:33,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-07-21 01:25:33,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2863 states and 3141 transitions. [2020-07-21 01:25:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-21 01:25:33,723 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:25:33,724 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 01:25:33,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:33,938 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:25:33,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:25:33,938 INFO L82 PathProgramCache]: Analyzing trace with hash 879281293, now seen corresponding path program 1 times [2020-07-21 01:25:33,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:25:33,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353145562] [2020-07-21 01:25:33,940 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:34,074 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:25:34,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:25:34,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:25:34,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:25:34,160 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 107 proven. 83 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-21 01:25:34,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:25:34,319 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 186 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-21 01:25:34,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353145562] [2020-07-21 01:25:34,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:25:34,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 01:25:34,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157810891] [2020-07-21 01:25:34,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:25:34,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:25:34,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:25:34,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:25:34,322 INFO L87 Difference]: Start difference. First operand 2863 states and 3141 transitions. Second operand 5 states. [2020-07-21 01:25:34,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:25:34,636 INFO L93 Difference]: Finished difference Result 2863 states and 3141 transitions. [2020-07-21 01:25:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 01:25:34,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 276 [2020-07-21 01:25:34,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:25:34,643 INFO L225 Difference]: With dead ends: 2863 [2020-07-21 01:25:34,643 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:25:34,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 545 SyntacticMatches, 4 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:25:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:25:34,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:25:34,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:25:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:25:34,648 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2020-07-21 01:25:34,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:25:34,648 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:25:34,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:25:34,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:25:34,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:25:34,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:25:34,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:25:35,681 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 78 [2020-07-21 01:25:35,849 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 96 [2020-07-21 01:25:38,294 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 206 DAG size of output: 113 [2020-07-21 01:25:38,605 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 44 [2020-07-21 01:25:38,911 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 44 [2020-07-21 01:25:38,915 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:25:38,915 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (<= |old(~a17~0)| ~a17~0) (= ~a19~0 |old(~a19~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) (not (= 1 ~a21~0))) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 01:25:38,915 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:25:38,915 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,915 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,916 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,916 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,916 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,916 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:25:38,916 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:25:38,917 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:25:38,917 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:25:38,917 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:25:38,917 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:25:38,917 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:25:38,917 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:25:38,918 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:25:38,918 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:25:38,918 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:25:38,918 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:25:38,918 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:25:38,918 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,918 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,918 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,918 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,919 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:25:38,919 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,919 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:25:38,919 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:25:38,919 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:25:38,919 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:25:38,919 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:25:38,919 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:25:38,920 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:25:38,920 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:25:38,920 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:25:38,920 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:25:38,920 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:25:38,920 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:25:38,920 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:25:38,920 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:25:38,920 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:25:38,921 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,921 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,921 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,921 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,921 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,921 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 556) no Hoare annotation was computed. [2020-07-21 01:25:38,921 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:25:38,921 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:25:38,922 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,923 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,923 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,923 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,923 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,923 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:25:38,923 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:25:38,923 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:25:38,923 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:25:38,923 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:25:38,924 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:25:38,924 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:25:38,924 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:25:38,924 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:25:38,924 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:25:38,924 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:25:38,924 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:25:38,924 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:25:38,924 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,925 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,925 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,925 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,925 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,925 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:25:38,925 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:25:38,925 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:25:38,925 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:25:38,926 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:25:38,927 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:25:38,927 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:25:38,927 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,927 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,927 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,927 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,927 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:25:38,927 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,928 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:25:38,928 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,928 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:25:38,928 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:25:38,928 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:25:38,928 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,928 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,928 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:25:38,928 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:25:38,929 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:25:38,929 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:25:38,929 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:25:38,929 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:25:38,929 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:25:38,929 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:25:38,929 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:25:38,929 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:25:38,930 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:25:38,930 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,930 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,930 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,930 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,930 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,930 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,930 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:25:38,930 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:25:38,931 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:25:38,931 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:25:38,931 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:25:38,931 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:25:38,931 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:25:38,931 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:25:38,931 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:25:38,931 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:25:38,931 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:25:38,932 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,932 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,932 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,932 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,932 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,932 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,932 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:25:38,932 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:25:38,932 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:25:38,933 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:25:38,934 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:25:38,934 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,934 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,934 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,934 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse9 (<= ~a28~0 |old(~a28~0)|)) (.cse20 (or (< ~a11~0 1) (< 0 |old(~a11~0)|))) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse13 (<= |old(~a28~0)| ~a28~0)) (.cse21 (= ~a25~0 |old(~a25~0)|)) (.cse24 (= 1 |old(~a25~0)|))) (let ((.cse10 (<= |old(~a17~0)| ~a17~0)) (.cse12 (< ~a17~0 9)) (.cse16 (= 1 ~a11~0)) (.cse19 (not (= 1 |old(~a11~0)|))) (.cse17 (not (<= |old(~a25~0)| 0))) (.cse26 (not (< 8 |old(~a28~0)|))) (.cse8 (not (< |old(~a28~0)| 11))) (.cse3 (not (<= 8 |old(~a17~0)|))) (.cse7 (not .cse24)) (.cse4 (not (< |old(~a17~0)| 9))) (.cse28 (= 8 ~a17~0)) (.cse14 (= 1 ~a25~0)) (.cse15 (not (= 10 |old(~a28~0)|))) (.cse1 (<= ~a11~0 |old(~a11~0)|)) (.cse22 (not (= 8 |old(~a17~0)|))) (.cse18 (not (<= |old(~a19~0)| 0))) (.cse23 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse6 (not (<= |old(~a11~0)| 0))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse2 (not (<= |old(~a28~0)| 9))) (.cse25 (not (<= |old(~a17~0)| 7))) (.cse5 (not (= 1 ~a21~0))) (.cse27 (and .cse9 (= ~a17~0 |old(~a17~0)|) .cse20 .cse11 .cse13 .cse21))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or .cse1 .cse3 .cse7 .cse4 (not (<= 10 |old(~a28~0)|)) .cse5 .cse6 .cse8) (or (and .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) .cse3 .cse7 .cse4 .cse5 .cse8) (or .cse15 .cse16 .cse17 .cse18 (not (= 7 |old(~a17~0)|)) .cse5 .cse19) (or (and .cse9 .cse10 .cse20 .cse11 .cse12 .cse13 .cse21) .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse22 (not (= 11 |old(~a28~0)|)) .cse7 .cse23 .cse5 .cse6) (or .cse1 .cse24 .cse2 .cse25 .cse26 .cse5 .cse6) (or .cse0 .cse22 .cse16 .cse7 .cse5 (not (= 9 |old(~a28~0)|)) .cse19) (or .cse1 (not (<= 8 |old(~a28~0)|)) .cse2 .cse3 .cse17 .cse4 .cse5 .cse6) (or .cse25 .cse26 .cse5 .cse27 .cse8) (or .cse0 .cse22 .cse5 .cse8 (and .cse9 .cse20 .cse11 .cse28 .cse13 .cse21)) (or .cse0 .cse3 .cse7 .cse4 .cse5 (and .cse9 .cse20 .cse11 .cse28 .cse13 .cse14)) (or .cse0 .cse1 .cse15 .cse22 .cse23 .cse5 .cse6) (or .cse1 .cse22 (not (= 7 |old(~a28~0)|)) .cse18 .cse23 .cse5 .cse6) (or .cse0 .cse2 .cse25 .cse5 .cse27)))) [2020-07-21 01:25:38,934 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,935 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,935 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,935 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:25:38,935 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:25:38,935 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:25:38,935 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:25:38,935 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:25:38,935 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:25:38,935 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,936 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:25:38,937 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:25:38,938 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:25:38,938 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:25:38,938 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:25:38,938 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:25:38,938 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:25:38,938 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:25:38,938 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:25:38,938 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,939 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,939 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,939 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,939 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:25:38,939 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:25:38,939 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:25:38,939 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:25:38,939 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:25:38,939 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:25:38,940 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:25:38,940 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:25:38,940 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:25:38,940 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:25:38,940 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:25:38,940 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:25:38,940 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:25:38,940 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:25:38,940 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:25:38,941 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:25:38,941 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:25:38,941 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:25:38,941 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:25:38,941 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:25:38,941 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:25:38,941 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 01:25:38,941 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:25:38,942 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:25:38,942 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (< |old(~a17~0)| 9)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and (<= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|))) [2020-07-21 01:25:38,942 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 7)) (.cse6 (<= 9 ~a28~0)) (.cse4 (= 1 ~a25~0)) (.cse1 (<= ~a28~0 9)) (.cse7 (< ~a17~0 9)) (.cse0 (= 1 ~a19~0)) (.cse5 (< ~a28~0 11)) (.cse3 (= 8 ~a17~0))) (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse1 .cse2) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse3 .cse4) (and .cse2 .cse5 .cse6) (and .cse5 .cse7 .cse6 .cse4) (and .cse1 (<= |old(~a17~0)| ~a17~0) .cse7) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse3))) [2020-07-21 01:25:38,942 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:25:38,942 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:25:38,942 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (<= ~a17~0 7)) (.cse6 (<= 9 ~a28~0)) (.cse4 (= 1 ~a25~0)) (.cse1 (<= ~a28~0 9)) (.cse7 (< ~a17~0 9)) (.cse0 (= 1 ~a19~0)) (.cse5 (< ~a28~0 11)) (.cse3 (= 8 ~a17~0))) (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (and .cse0 .cse1 .cse2) (not (= 7 |old(~a28~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse3 .cse4) (and .cse2 .cse5 .cse6) (and .cse5 .cse7 .cse6 .cse4) (and .cse1 (<= |old(~a17~0)| ~a17~0) .cse7) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse5 .cse3))) [2020-07-21 01:25:38,943 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:25:38,943 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:25:38,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:25:38 BoogieIcfgContainer [2020-07-21 01:25:38,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:25:38,965 INFO L168 Benchmark]: Toolchain (without parser) took 50611.70 ms. Allocated memory was 138.4 MB in the beginning and 693.6 MB in the end (delta: 555.2 MB). Free memory was 99.8 MB in the beginning and 84.7 MB in the end (delta: 15.1 MB). Peak memory consumption was 571.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:38,966 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory is still 119.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 01:25:38,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 849.94 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.4 MB in the beginning and 168.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:38,967 INFO L168 Benchmark]: Boogie Preprocessor took 108.86 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 163.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:38,968 INFO L168 Benchmark]: RCFGBuilder took 1203.13 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 163.4 MB in the beginning and 179.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:38,969 INFO L168 Benchmark]: TraceAbstraction took 48442.92 ms. Allocated memory was 235.9 MB in the beginning and 693.6 MB in the end (delta: 457.7 MB). Free memory was 179.0 MB in the beginning and 84.7 MB in the end (delta: 94.3 MB). Peak memory consumption was 553.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:25:38,971 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 138.4 MB. Free memory is still 119.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 849.94 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.4 MB in the beginning and 168.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.86 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 163.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1203.13 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 163.4 MB in the beginning and 179.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 48442.92 ms. Allocated memory was 235.9 MB in the beginning and 693.6 MB in the end (delta: 457.7 MB). Free memory was 179.0 MB in the beginning and 84.7 MB in the end (delta: 94.3 MB). Peak memory consumption was 553.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 556]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(a19)) || !(8 == \old(a17))) || ((1 == a19 && a28 <= 9) && a17 <= 7)) || !(7 == \old(a28))) || !(\old(a25) <= 0)) || ((1 == a19 && 8 == a17) && 1 == a25)) || ((a17 <= 7 && a28 < 11) && 9 <= a28)) || (((a28 < 11 && a17 < 9) && 9 <= a28) && 1 == a25)) || ((a28 <= 9 && \old(a17) <= a17) && a17 < 9)) || !(1 == a21)) || !(\old(a11) <= 0)) || ((1 == a19 && a28 < 11) && 8 == a17) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 44.2s, OverallIterations: 14, TraceHistogramMax: 5, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 923 SDtfs, 9994 SDslu, 1627 SDs, 0 SdLazy, 19419 SolverSat, 2110 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5390 GetRequests, 5126 SyntacticMatches, 17 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2057 ImplicationChecksByTransitivity, 12.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4010occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 726 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 187 PreInvPairs, 253 NumberOfFragments, 836 HoareAnnotationTreeSize, 187 FomulaSimplifications, 29525 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4249 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 2911 NumberOfCodeBlocks, 1995 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 5247 ConstructedInterpolants, 0 QuantifiedInterpolants, 8394033 SizeOfPredicates, 105 NumberOfNonLiveVariables, 5405 ConjunctsInSsa, 334 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 2342/2722 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...