/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/Problem01_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:20:59,344 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:20:59,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:20:59,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:20:59,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:20:59,396 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 01:20:59,417 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:20:59,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:20:59,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:20:59,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:20:59,419 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:20:59,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:20:59,420 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:20:59,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:20:59,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:20:59,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:20:59,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:20:59,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:20:59,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:20:59,422 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:20:59,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:20:59,423 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:20:59,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:20:59,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:20:59,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:20:59,424 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:20:59,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:20:59,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:20:59,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:20:59,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:20:59,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:20:59,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:20:59,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:59,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:20:59,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:20:59,426 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 01:20:59,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:20:59,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:20:59,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:20:59,743 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:20:59,743 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:20:59,744 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2020-07-21 01:20:59,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5e4b0523/462084aa2b344a84abd2ea48300f99d8/FLAGbb340f631 [2020-07-21 01:21:00,435 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:21:00,436 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label43.c [2020-07-21 01:21:00,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5e4b0523/462084aa2b344a84abd2ea48300f99d8/FLAGbb340f631 [2020-07-21 01:21:00,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5e4b0523/462084aa2b344a84abd2ea48300f99d8 [2020-07-21 01:21:00,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:21:00,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:21:00,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:21:00,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:21:00,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:21:00,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:21:00" (1/1) ... [2020-07-21 01:21:00,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1d5e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:00, skipping insertion in model container [2020-07-21 01:21:00,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:21:00" (1/1) ... [2020-07-21 01:21:00,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:21:00,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:21:01,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:21:01,339 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:21:01,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:21:01,505 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:21:01,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01 WrapperNode [2020-07-21 01:21:01,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:21:01,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:21:01,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:21:01,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:21:01,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01" (1/1) ... [2020-07-21 01:21:01,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01" (1/1) ... [2020-07-21 01:21:01,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01" (1/1) ... [2020-07-21 01:21:01,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01" (1/1) ... [2020-07-21 01:21:01,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01" (1/1) ... [2020-07-21 01:21:01,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01" (1/1) ... [2020-07-21 01:21:01,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01" (1/1) ... [2020-07-21 01:21:01,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:21:01,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:21:01,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:21:01,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:21:01,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01" (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 01:21:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:21:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:21:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:21:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:21:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:21:01,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:21:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:21:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:21:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:21:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:21:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:21:03,122 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:21:03,123 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:21:03,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:21:03 BoogieIcfgContainer [2020-07-21 01:21:03,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:21:03,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:21:03,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:21:03,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:21:03,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:21:00" (1/3) ... [2020-07-21 01:21:03,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583ad0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:21:03, skipping insertion in model container [2020-07-21 01:21:03,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:21:01" (2/3) ... [2020-07-21 01:21:03,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583ad0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:21:03, skipping insertion in model container [2020-07-21 01:21:03,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:21:03" (3/3) ... [2020-07-21 01:21:03,136 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label43.c [2020-07-21 01:21:03,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:21:03,154 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:21:03,168 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:21:03,193 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:21:03,193 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:21:03,194 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:21:03,194 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:21:03,194 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:21:03,194 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:21:03,195 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:21:03,195 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:21:03,216 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 01:21:03,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 01:21:03,231 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:03,232 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 01:21:03,233 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:03,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:03,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1457340122, now seen corresponding path program 1 times [2020-07-21 01:21:03,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:03,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764210078] [2020-07-21 01:21:03,249 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 01:21:03,435 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:21:03,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:03,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 01:21:03,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:03,787 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 01:21:03,951 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 01:21:04,369 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 01:21:04,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:21:04,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764210078] [2020-07-21 01:21:04,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:21:04,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 01:21:04,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748844009] [2020-07-21 01:21:04,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:21:04,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:04,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:21:04,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:21:04,400 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 01:21:06,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:06,441 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 01:21:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:21:06,445 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 134 [2020-07-21 01:21:06,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:06,458 INFO L225 Difference]: With dead ends: 472 [2020-07-21 01:21:06,458 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 01:21:06,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 01:21:06,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 01:21:06,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 01:21:06,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 01:21:06,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 01:21:06,521 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 134 [2020-07-21 01:21:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:06,522 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 01:21:06,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:21:06,522 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 01:21:06,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 01:21:06,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:06,534 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:21:06,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:06,748 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:06,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:06,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1373578177, now seen corresponding path program 1 times [2020-07-21 01:21:06,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:06,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486455896] [2020-07-21 01:21:06,750 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 01:21:06,869 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:21:06,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:06,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 01:21:06,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:07,249 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2020-07-21 01:21:07,662 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:21:07,666 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:21:07,666 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:21:07,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:07,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:08,210 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-07-21 01:21:08,608 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 01:21:08,779 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:21:08,958 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:21:09,120 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 01:21:09,126 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 01:21:09,128 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 01:21:09,130 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:21:09,131 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:21:09,132 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:09,133 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:09,136 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:21:09,138 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:21:09,139 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:09,145 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:09,147 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:09,149 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 01:21:09,150 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:21:09,151 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:21:09,152 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:09,156 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:09,157 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:09,159 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:09,159 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:09,161 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:09,162 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:09,167 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:21:09,168 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:09,171 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:21:09,171 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:09,819 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 01:21:09,823 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 01:21:09,824 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:09,900 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:09,900 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:09,975 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:10,009 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:10,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:10,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486455896] [2020-07-21 01:21:10,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:10,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 01:21:10,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571078196] [2020-07-21 01:21:10,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 01:21:10,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:10,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 01:21:10,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 01:21:10,168 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 01:21:11,292 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 01:21:11,842 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:21:12,182 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 01:21:12,716 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 01:21:12,962 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 01:21:13,435 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:21:16,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:16,050 INFO L93 Difference]: Finished difference Result 590 states and 879 transitions. [2020-07-21 01:21:16,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 01:21:16,051 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 142 [2020-07-21 01:21:16,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:16,058 INFO L225 Difference]: With dead ends: 590 [2020-07-21 01:21:16,058 INFO L226 Difference]: Without dead ends: 453 [2020-07-21 01:21:16,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 256 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 01:21:16,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-07-21 01:21:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 417. [2020-07-21 01:21:16,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 01:21:16,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 549 transitions. [2020-07-21 01:21:16,110 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 549 transitions. Word has length 142 [2020-07-21 01:21:16,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:16,111 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 549 transitions. [2020-07-21 01:21:16,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 01:21:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 549 transitions. [2020-07-21 01:21:16,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 01:21:16,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:16,117 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:21:16,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:16,330 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:16,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:16,331 INFO L82 PathProgramCache]: Analyzing trace with hash -2064744129, now seen corresponding path program 1 times [2020-07-21 01:21:16,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:16,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806229615] [2020-07-21 01:21:16,333 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 01:21:16,485 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:21:16,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:16,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:21:16,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:16,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:21:16,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806229615] [2020-07-21 01:21:16,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:21:16,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:21:16,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800073365] [2020-07-21 01:21:16,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:21:16,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:16,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:21:16,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:21:16,530 INFO L87 Difference]: Start difference. First operand 417 states and 549 transitions. Second operand 3 states. [2020-07-21 01:21:17,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:17,140 INFO L93 Difference]: Finished difference Result 1042 states and 1436 transitions. [2020-07-21 01:21:17,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:21:17,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-07-21 01:21:17,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:17,151 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 01:21:17,151 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 01:21:17,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 01:21:17,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 01:21:17,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 01:21:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 01:21:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 898 transitions. [2020-07-21 01:21:17,200 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 898 transitions. Word has length 145 [2020-07-21 01:21:17,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:17,201 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 898 transitions. [2020-07-21 01:21:17,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:21:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 898 transitions. [2020-07-21 01:21:17,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 01:21:17,205 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:17,205 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:17,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:17,408 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:17,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1025958774, now seen corresponding path program 1 times [2020-07-21 01:21:17,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:17,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391651517] [2020-07-21 01:21:17,410 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 01:21:17,508 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:21:17,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:17,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:21:17,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:17,545 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:17,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:17,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391651517] [2020-07-21 01:21:17,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:17,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:21:17,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019846584] [2020-07-21 01:21:17,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:21:17,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:17,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:21:17,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:21:17,598 INFO L87 Difference]: Start difference. First operand 691 states and 898 transitions. Second operand 6 states. [2020-07-21 01:21:18,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:18,511 INFO L93 Difference]: Finished difference Result 1620 states and 2190 transitions. [2020-07-21 01:21:18,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:21:18,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2020-07-21 01:21:18,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:18,518 INFO L225 Difference]: With dead ends: 1620 [2020-07-21 01:21:18,518 INFO L226 Difference]: Without dead ends: 995 [2020-07-21 01:21:18,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:21:18,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2020-07-21 01:21:18,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 973. [2020-07-21 01:21:18,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2020-07-21 01:21:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1268 transitions. [2020-07-21 01:21:18,586 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1268 transitions. Word has length 154 [2020-07-21 01:21:18,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:18,587 INFO L479 AbstractCegarLoop]: Abstraction has 973 states and 1268 transitions. [2020-07-21 01:21:18,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:21:18,588 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1268 transitions. [2020-07-21 01:21:18,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-21 01:21:18,593 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:18,593 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:21:18,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:18,807 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:18,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:18,808 INFO L82 PathProgramCache]: Analyzing trace with hash 655240574, now seen corresponding path program 1 times [2020-07-21 01:21:18,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:18,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699660519] [2020-07-21 01:21:18,808 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 01:21:18,926 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:21:18,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:18,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:21:18,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:18,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:19,220 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:21:19,270 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:21:19,271 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:19,271 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:21:19,271 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:19,273 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 1] term [2020-07-21 01:21:19,273 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:19,274 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:19,275 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:19,276 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:19,276 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:19,277 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:19,278 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:19,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699660519] [2020-07-21 01:21:19,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:19,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:21:19,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049961237] [2020-07-21 01:21:19,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:21:19,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:19,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:21:19,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:21:19,425 INFO L87 Difference]: Start difference. First operand 973 states and 1268 transitions. Second operand 7 states. [2020-07-21 01:21:20,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:20,986 INFO L93 Difference]: Finished difference Result 2491 states and 3253 transitions. [2020-07-21 01:21:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:21:20,991 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-07-21 01:21:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:21,001 INFO L225 Difference]: With dead ends: 2491 [2020-07-21 01:21:21,002 INFO L226 Difference]: Without dead ends: 1304 [2020-07-21 01:21:21,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 316 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:21:21,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-07-21 01:21:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1241. [2020-07-21 01:21:21,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1241 states. [2020-07-21 01:21:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1468 transitions. [2020-07-21 01:21:21,049 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1468 transitions. Word has length 160 [2020-07-21 01:21:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:21,049 INFO L479 AbstractCegarLoop]: Abstraction has 1241 states and 1468 transitions. [2020-07-21 01:21:21,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:21:21,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1468 transitions. [2020-07-21 01:21:21,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-21 01:21:21,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:21,054 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:21:21,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:21,268 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:21,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1985141827, now seen corresponding path program 1 times [2020-07-21 01:21:21,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:21,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782750650] [2020-07-21 01:21:21,270 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 01:21:21,390 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:21:21,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:21,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 01:21:21,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:21,745 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2020-07-21 01:21:22,154 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:21:22,155 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:21:22,155 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:21:22,254 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:22,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:22,772 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-07-21 01:21:22,935 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 01:21:23,269 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2020-07-21 01:21:23,461 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 01:21:23,642 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-07-21 01:21:23,646 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 8 conjuncts [2020-07-21 01:21:23,647 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-07-21 01:21:23,649 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:21:23,650 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,651 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,652 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:21:23,653 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:23,657 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:23,658 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,659 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,661 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,662 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:21:23,663 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:21:23,664 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:21:23,665 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,666 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:21:23,667 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:21:23,667 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,668 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,669 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,670 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,672 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,673 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,674 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:23,675 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,675 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,677 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,678 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,678 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,680 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,680 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,681 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,684 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,685 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,686 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,687 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:23,688 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,689 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,690 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,691 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,692 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,693 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,694 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,694 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,696 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,697 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,698 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,700 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,701 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,702 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,703 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,704 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:23,704 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,705 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,707 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,707 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,708 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,709 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,710 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,711 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,713 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,714 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,714 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,716 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,717 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,717 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,720 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,720 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,721 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,723 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:23,724 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:23,725 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:23,725 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:23,726 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:23,727 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:23,727 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,728 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,729 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,731 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,732 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:23,732 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,733 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,734 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,735 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,735 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,736 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,737 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,738 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,740 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,741 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,742 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:23,742 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,743 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,744 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,745 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,745 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,747 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,747 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,748 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,750 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,750 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,751 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,753 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,754 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,754 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,755 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:23,756 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,756 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,758 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,758 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,759 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,760 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,761 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,761 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,763 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,764 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,764 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,766 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,767 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,767 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,769 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,770 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,771 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:21:23,772 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:21:23,772 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:21:23,773 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,774 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:21:23,775 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:21:23,775 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,776 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,777 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,778 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,779 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,780 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,781 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:23,781 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,782 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,784 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,784 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,785 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,787 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,787 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,788 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,791 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,792 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,793 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,793 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:23,794 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,795 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,796 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,796 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,797 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,798 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,799 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,799 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,801 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,802 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,802 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,804 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,805 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,806 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:21:23,806 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 5 conjuncts [2020-07-21 01:21:23,807 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:23,808 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,809 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,810 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:21:23,810 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,811 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,812 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,813 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,814 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,816 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,817 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,818 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:23,820 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:21:23,820 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:21:23,821 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:25,137 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 135 DAG size of output: 39 [2020-07-21 01:21:25,139 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 1] term [2020-07-21 01:21:25,140 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:25,242 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:21:25,243 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:25,348 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:25,396 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:25,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782750650] [2020-07-21 01:21:25,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:25,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 26 [2020-07-21 01:21:25,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013092003] [2020-07-21 01:21:25,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-21 01:21:25,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:25,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-21 01:21:25,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2020-07-21 01:21:25,697 INFO L87 Difference]: Start difference. First operand 1241 states and 1468 transitions. Second operand 26 states. [2020-07-21 01:21:27,891 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-07-21 01:21:28,416 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-07-21 01:21:29,037 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-07-21 01:21:29,269 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-07-21 01:21:29,638 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-07-21 01:21:29,882 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-07-21 01:21:30,415 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-07-21 01:21:30,672 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-07-21 01:21:31,097 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-07-21 01:21:31,395 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-07-21 01:21:31,633 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-07-21 01:21:32,040 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-07-21 01:21:32,458 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-07-21 01:21:32,824 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-07-21 01:21:33,153 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-07-21 01:21:33,688 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-07-21 01:21:34,041 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-07-21 01:21:35,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:35,462 INFO L93 Difference]: Finished difference Result 2676 states and 3273 transitions. [2020-07-21 01:21:35,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-07-21 01:21:35,466 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 175 [2020-07-21 01:21:35,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:35,473 INFO L225 Difference]: With dead ends: 2676 [2020-07-21 01:21:35,473 INFO L226 Difference]: Without dead ends: 1433 [2020-07-21 01:21:35,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 322 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1075 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=877, Invalid=2663, Unknown=0, NotChecked=0, Total=3540 [2020-07-21 01:21:35,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-07-21 01:21:35,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1296. [2020-07-21 01:21:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1296 states. [2020-07-21 01:21:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1539 transitions. [2020-07-21 01:21:35,515 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1539 transitions. Word has length 175 [2020-07-21 01:21:35,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:35,516 INFO L479 AbstractCegarLoop]: Abstraction has 1296 states and 1539 transitions. [2020-07-21 01:21:35,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-21 01:21:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1539 transitions. [2020-07-21 01:21:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-21 01:21:35,521 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:35,521 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, 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] [2020-07-21 01:21:35,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:35,734 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:35,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:35,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1324267016, now seen corresponding path program 1 times [2020-07-21 01:21:35,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:35,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393483123] [2020-07-21 01:21:35,736 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 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 01:21:35,861 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:21:35,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:35,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:21:35,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:36,322 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-07-21 01:21:36,463 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-07-21 01:21:36,629 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-07-21 01:21:36,827 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-07-21 01:21:36,833 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 8, 1] term [2020-07-21 01:21:36,833 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-07-21 01:21:36,911 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:21:36,911 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:21:36,912 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:21:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 14 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:37,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:37,379 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-07-21 01:21:37,560 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2020-07-21 01:21:37,764 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-07-21 01:21:38,014 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-07-21 01:21:38,021 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:38,022 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:38,152 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-07-21 01:21:38,293 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-07-21 01:21:38,299 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 7 conjuncts [2020-07-21 01:21:38,300 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 01:21:38,301 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 01:21:38,302 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:38,302 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:21:38,303 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:38,305 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:38,305 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:38,306 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:38,307 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:38,307 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:38,308 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:38,342 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 6, 1] term [2020-07-21 01:21:38,342 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:38,382 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:38,384 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:38,443 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:21:38,548 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 14 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:39,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393483123] [2020-07-21 01:21:39,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:39,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 27 [2020-07-21 01:21:39,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607867107] [2020-07-21 01:21:39,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-07-21 01:21:39,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:39,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-07-21 01:21:39,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2020-07-21 01:21:39,125 INFO L87 Difference]: Start difference. First operand 1296 states and 1539 transitions. Second operand 27 states. [2020-07-21 01:21:42,578 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-07-21 01:21:42,871 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-07-21 01:21:43,232 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-07-21 01:21:43,780 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-07-21 01:21:44,143 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-07-21 01:21:45,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:45,785 INFO L93 Difference]: Finished difference Result 3294 states and 4206 transitions. [2020-07-21 01:21:45,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-21 01:21:45,786 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 192 [2020-07-21 01:21:45,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:45,799 INFO L225 Difference]: With dead ends: 3294 [2020-07-21 01:21:45,799 INFO L226 Difference]: Without dead ends: 2031 [2020-07-21 01:21:45,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 358 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=553, Invalid=1339, Unknown=0, NotChecked=0, Total=1892 [2020-07-21 01:21:45,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2020-07-21 01:21:45,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 1438. [2020-07-21 01:21:45,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2020-07-21 01:21:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 1652 transitions. [2020-07-21 01:21:45,865 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 1652 transitions. Word has length 192 [2020-07-21 01:21:45,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:45,866 INFO L479 AbstractCegarLoop]: Abstraction has 1438 states and 1652 transitions. [2020-07-21 01:21:45,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-07-21 01:21:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 1652 transitions. [2020-07-21 01:21:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 01:21:45,872 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:45,872 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:21:46,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:46,087 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:46,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:46,088 INFO L82 PathProgramCache]: Analyzing trace with hash 565036902, now seen corresponding path program 1 times [2020-07-21 01:21:46,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:46,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244512419] [2020-07-21 01:21:46,089 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 01:21:46,227 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:21:46,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:46,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-21 01:21:46,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:46,326 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 01:21:46,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:46,666 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 01:21:46,724 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:46,724 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:46,725 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:21:46,725 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:46,726 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:21:46,726 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:46,727 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:46,727 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:46,727 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:46,728 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:21:46,728 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:46,948 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 01:21:46,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244512419] [2020-07-21 01:21:46,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:21:46,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-07-21 01:21:46,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385560547] [2020-07-21 01:21:46,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:21:46,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:46,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:21:46,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:21:46,950 INFO L87 Difference]: Start difference. First operand 1438 states and 1652 transitions. Second operand 5 states. [2020-07-21 01:21:47,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:47,872 INFO L93 Difference]: Finished difference Result 3517 states and 4103 transitions. [2020-07-21 01:21:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:21:47,873 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-07-21 01:21:47,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:47,882 INFO L225 Difference]: With dead ends: 3517 [2020-07-21 01:21:47,882 INFO L226 Difference]: Without dead ends: 2145 [2020-07-21 01:21:47,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 416 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:21:47,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2020-07-21 01:21:47,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2139. [2020-07-21 01:21:47,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2139 states. [2020-07-21 01:21:47,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2429 transitions. [2020-07-21 01:21:47,942 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2429 transitions. Word has length 212 [2020-07-21 01:21:47,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:47,943 INFO L479 AbstractCegarLoop]: Abstraction has 2139 states and 2429 transitions. [2020-07-21 01:21:47,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:21:47,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2429 transitions. [2020-07-21 01:21:47,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-07-21 01:21:47,950 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:47,950 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:48,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:48,166 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:48,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:48,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1612199943, now seen corresponding path program 1 times [2020-07-21 01:21:48,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:48,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098382278] [2020-07-21 01:21:48,167 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 01:21:48,352 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:21:48,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:48,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 01:21:48,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:48,403 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:21:48,403 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:21:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 137 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:48,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:48,718 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:21:48,780 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:48,781 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,781 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,782 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,782 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,783 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,783 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 1] term [2020-07-21 01:21:48,784 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,784 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:48,785 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,785 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,786 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,819 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:21:48,888 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,914 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 124 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:21:48,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098382278] [2020-07-21 01:21:48,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:48,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2020-07-21 01:21:48,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631278241] [2020-07-21 01:21:48,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 01:21:48,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:48,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 01:21:48,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:21:48,987 INFO L87 Difference]: Start difference. First operand 2139 states and 2429 transitions. Second operand 12 states. [2020-07-21 01:21:51,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:21:51,488 INFO L93 Difference]: Finished difference Result 4726 states and 5512 transitions. [2020-07-21 01:21:51,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-21 01:21:51,489 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 223 [2020-07-21 01:21:51,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:21:51,501 INFO L225 Difference]: With dead ends: 4726 [2020-07-21 01:21:51,501 INFO L226 Difference]: Without dead ends: 2653 [2020-07-21 01:21:51,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 441 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=458, Unknown=0, NotChecked=0, Total=650 [2020-07-21 01:21:51,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2020-07-21 01:21:51,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2413. [2020-07-21 01:21:51,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2413 states. [2020-07-21 01:21:51,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 2754 transitions. [2020-07-21 01:21:51,575 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 2754 transitions. Word has length 223 [2020-07-21 01:21:51,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:21:51,576 INFO L479 AbstractCegarLoop]: Abstraction has 2413 states and 2754 transitions. [2020-07-21 01:21:51,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 01:21:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 2754 transitions. [2020-07-21 01:21:51,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-07-21 01:21:51,590 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:21:51,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:51,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:21:51,791 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:21:51,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:21:51,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1827493602, now seen corresponding path program 1 times [2020-07-21 01:21:51,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:21:51,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540214677] [2020-07-21 01:21:51,793 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 01:21:51,957 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:21:51,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:21:51,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:21:51,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:21:52,399 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-07-21 01:21:52,550 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-07-21 01:21:52,720 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-07-21 01:21:52,912 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-07-21 01:21:53,099 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2020-07-21 01:21:53,295 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-07-21 01:21:53,476 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-07-21 01:21:53,693 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2020-07-21 01:21:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 9 proven. 102 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:21:54,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:21:54,681 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-07-21 01:21:54,986 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2020-07-21 01:21:55,177 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 01:21:55,568 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2020-07-21 01:21:56,024 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2020-07-21 01:21:56,502 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-07-21 01:21:57,016 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-07-21 01:21:57,019 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 01:21:57,020 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 01:21:57,021 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:21:57,022 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:21:57,023 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:57,023 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,024 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,025 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:57,025 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,026 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,027 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:21:57,028 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:57,028 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,029 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,030 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:21:57,030 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:21:57,031 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:57,031 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,032 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,033 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 01:21:57,034 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:21:57,034 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:21:57,035 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:57,035 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,036 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,037 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:21:57,038 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:21:57,038 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:21:57,039 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,039 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:21:57,326 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-07-21 01:21:57,487 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 01:21:57,493 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 7 conjuncts [2020-07-21 01:21:57,493 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 6 conjuncts [2020-07-21 01:21:57,494 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 5 conjuncts [2020-07-21 01:21:57,494 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 4 conjuncts [2020-07-21 01:21:57,495 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:21:57,495 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:21:57,520 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 7, 6, 1] term [2020-07-21 01:21:57,520 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:21:57,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:57,693 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:57,731 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:21:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 9 proven. 102 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:21:57,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540214677] [2020-07-21 01:21:57,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:21:58,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 35 [2020-07-21 01:21:58,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423498523] [2020-07-21 01:21:58,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-07-21 01:21:58,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:21:58,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-07-21 01:21:58,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=858, Unknown=0, NotChecked=0, Total=1190 [2020-07-21 01:21:58,002 INFO L87 Difference]: Start difference. First operand 2413 states and 2754 transitions. Second operand 35 states. [2020-07-21 01:22:02,507 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2020-07-21 01:22:03,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:22:03,021 INFO L93 Difference]: Finished difference Result 4869 states and 5658 transitions. [2020-07-21 01:22:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 01:22:03,022 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 248 [2020-07-21 01:22:03,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:22:03,031 INFO L225 Difference]: With dead ends: 4869 [2020-07-21 01:22:03,031 INFO L226 Difference]: Without dead ends: 2522 [2020-07-21 01:22:03,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 457 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 795 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=920, Invalid=2272, Unknown=0, NotChecked=0, Total=3192 [2020-07-21 01:22:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2020-07-21 01:22:03,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2426. [2020-07-21 01:22:03,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2426 states. [2020-07-21 01:22:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 2774 transitions. [2020-07-21 01:22:03,099 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 2774 transitions. Word has length 248 [2020-07-21 01:22:03,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:22:03,099 INFO L479 AbstractCegarLoop]: Abstraction has 2426 states and 2774 transitions. [2020-07-21 01:22:03,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-07-21 01:22:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 2774 transitions. [2020-07-21 01:22:03,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-07-21 01:22:03,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:22:03,108 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:22:03,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:22:03,322 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:22:03,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:22:03,323 INFO L82 PathProgramCache]: Analyzing trace with hash -122544893, now seen corresponding path program 1 times [2020-07-21 01:22:03,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:22:03,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630069815] [2020-07-21 01:22:03,324 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 01:22:03,492 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:22:03,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:22:03,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:22:03,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:22:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 01:22:03,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:22:03,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630069815] [2020-07-21 01:22:03,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:22:03,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:22:03,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699301475] [2020-07-21 01:22:03,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:22:03,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:22:03,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:22:03,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:22:03,543 INFO L87 Difference]: Start difference. First operand 2426 states and 2774 transitions. Second operand 3 states. [2020-07-21 01:22:04,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:22:04,194 INFO L93 Difference]: Finished difference Result 6202 states and 7200 transitions. [2020-07-21 01:22:04,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:22:04,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2020-07-21 01:22:04,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:22:04,209 INFO L225 Difference]: With dead ends: 6202 [2020-07-21 01:22:04,209 INFO L226 Difference]: Without dead ends: 3792 [2020-07-21 01:22:04,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 259 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 01:22:04,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2020-07-21 01:22:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3383. [2020-07-21 01:22:04,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3383 states. [2020-07-21 01:22:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 3919 transitions. [2020-07-21 01:22:04,298 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 3919 transitions. Word has length 261 [2020-07-21 01:22:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:22:04,299 INFO L479 AbstractCegarLoop]: Abstraction has 3383 states and 3919 transitions. [2020-07-21 01:22:04,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:22:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 3919 transitions. [2020-07-21 01:22:04,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-21 01:22:04,309 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:22:04,310 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-07-21 01:22:04,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:22:04,524 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:22:04,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:22:04,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1508839738, now seen corresponding path program 1 times [2020-07-21 01:22:04,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:22:04,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719961120] [2020-07-21 01:22:04,526 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 01:22:04,786 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:22:04,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:22:04,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:22:04,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:22:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 01:22:04,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:22:04,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719961120] [2020-07-21 01:22:04,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:22:04,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:22:04,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021002882] [2020-07-21 01:22:04,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:22:04,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:22:04,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:22:04,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:22:04,865 INFO L87 Difference]: Start difference. First operand 3383 states and 3919 transitions. Second operand 3 states. [2020-07-21 01:22:05,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:22:05,463 INFO L93 Difference]: Finished difference Result 5433 states and 6319 transitions. [2020-07-21 01:22:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:22:05,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2020-07-21 01:22:05,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:22:05,465 INFO L225 Difference]: With dead ends: 5433 [2020-07-21 01:22:05,465 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:22:05,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 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 01:22:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:22:05,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:22:05,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:22:05,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:22:05,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 276 [2020-07-21 01:22:05,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:22:05,477 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:22:05,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:22:05,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:22:05,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:22:05,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:22:05,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:22:06,423 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 168 [2020-07-21 01:22:06,729 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 175 [2020-07-21 01:22:08,466 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 225 DAG size of output: 99 [2020-07-21 01:22:08,629 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2020-07-21 01:22:09,469 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 65 [2020-07-21 01:22:10,329 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 54 [2020-07-21 01:22:10,333 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:22:10,333 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (let ((.cse3 (= 1 |old(~a21~0)|))) (let ((.cse4 (not .cse3))) (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (let ((.cse2 (= 1 |old(~a20~0)|))) (or (let ((.cse0 (= 1 ~a20~0)) (.cse1 (= 1 ~a21~0))) (and (or (not .cse0) .cse1) (or .cse0 (not .cse1)))) (and (not .cse2) .cse3) (and .cse2 .cse4))) (= ~a21~0 |old(~a21~0)|) (or (and (<= ~a20~0 0) (= 15 ~a8~0) (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (< 0 |old(~a20~0)|) .cse4 (not (= 8 ~a12~0)))))) [2020-07-21 01:22:10,333 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:22:10,333 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 01:22:10,334 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 01:22:10,335 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 01:22:10,335 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 01:22:10,335 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 01:22:10,335 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 01:22:10,335 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,335 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,335 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,335 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,336 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,336 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,336 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 01:22:10,336 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 01:22:10,336 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 01:22:10,336 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 01:22:10,336 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 01:22:10,336 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 560) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 01:22:10,337 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 01:22:10,338 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 01:22:10,339 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 01:22:10,339 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 01:22:10,339 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,339 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,339 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,339 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,341 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,341 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 01:22:10,341 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 01:22:10,341 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 01:22:10,341 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 01:22:10,341 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 01:22:10,342 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 01:22:10,342 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 01:22:10,342 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 01:22:10,342 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 01:22:10,343 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 01:22:10,343 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 01:22:10,343 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 01:22:10,343 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 01:22:10,343 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,343 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,343 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,343 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 01:22:10,344 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 01:22:10,345 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 01:22:10,346 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 01:22:10,347 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 01:22:10,347 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,347 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,347 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,347 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,347 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,347 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 01:22:10,347 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 01:22:10,348 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 01:22:10,348 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 01:22:10,348 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 01:22:10,348 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 01:22:10,348 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 01:22:10,348 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 01:22:10,348 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,349 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,349 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,349 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,349 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,349 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 01:22:10,350 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 01:22:10,350 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 01:22:10,350 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 01:22:10,350 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 01:22:10,350 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 01:22:10,350 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 01:22:10,350 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 01:22:10,350 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 01:22:10,350 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 01:22:10,351 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse20 (= 1 |old(~a21~0)|))) (let ((.cse1 (not .cse20)) (.cse17 (= 1 |old(~a20~0)|))) (let ((.cse0 (not (= 1 |old(~a7~0)|))) (.cse6 (= 1 ~a20~0)) (.cse10 (not (= 5 |old(~a16~0)|))) (.cse11 (not (= 15 |old(~a8~0)|))) (.cse12 (= 1 ~a17~0)) (.cse13 (not (= 1 |old(~a17~0)|))) (.cse8 (and (or (not .cse17) .cse1) (or .cse17 .cse20))) (.cse14 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse16 (not (<= |old(~a21~0)| 0))) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse15 (<= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a16~0 |old(~a16~0)|)) (.cse18 (<= ~a17~0 0)) (.cse5 (= ~a8~0 |old(~a8~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse19 (not (<= |old(~a17~0)| 0))) (.cse9 (not (= 8 ~a12~0)))) (and (or .cse0 .cse1 (and (= 1 ~a7~0) .cse2)) (or (and .cse3 .cse4 .cse5 .cse6 .cse2) .cse7 .cse8 .cse1 .cse9) (or .cse10 .cse11 .cse7 .cse12 .cse13 (not (<= |old(~a20~0)| 0)) .cse14 .cse1 .cse9) (or (and .cse3 .cse15 .cse4 .cse5 .cse12 (= 1 ~a21~0)) .cse11 (not (= 6 |old(~a16~0)|)) .cse7 .cse13 .cse14 .cse1 .cse9) (or .cse0 (not (<= |old(~a16~0)| 4)) .cse1 (<= ~a16~0 4)) (or .cse16 (and .cse3 (or .cse17 (not .cse6)) .cse15 .cse4 .cse5 .cse2) .cse9) (or .cse7 (and .cse3 .cse15 .cse4 .cse5 .cse2) (not (< |old(~a16~0)| 6)) .cse1 .cse9) (or .cse10 .cse11 .cse7 .cse12 .cse13 .cse8 .cse14 .cse1 .cse9) (or .cse16 .cse18 .cse19 .cse9) (or .cse7 (and .cse3 .cse15 .cse4 .cse18 .cse5 .cse2) .cse1 .cse19 .cse9))))) [2020-07-21 01:22:10,351 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 01:22:10,351 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,351 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,351 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,351 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,351 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 01:22:10,352 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,353 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 01:22:10,354 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,355 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 01:22:10,356 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:22:10,357 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 01:22:10,357 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:22:10,357 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:22:10,357 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 5 |old(~a16~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0)) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 01:22:10,357 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:22:10,357 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse3 (= 1 ~a21~0)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse1 (<= ~a7~0 0)) (.cse2 (= ~a21~0 |old(~a21~0)|))) (or (and .cse0 .cse1 (= 1 ~a20~0) .cse2) (not (= 5 |old(~a16~0)|)) (<= ~a21~0 0) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (and (= 6 ~a16~0) .cse0 .cse1 (= 1 ~a17~0) .cse2 (or (= 1 main_~input~0) (= 2 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0)) (= 15 ~a8~0)) (and (< ~a16~0 6) .cse0 .cse1 .cse3) (not (= 1 |old(~a20~0)|)) (and (= 1 ~a7~0) .cse3) (not (= 1 |old(~a21~0)|)) (and .cse0 (<= ~a17~0 0) .cse1 .cse2) (not (= 8 ~a12~0)))) [2020-07-21 01:22:10,357 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 01:22:10,357 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 01:22:10,358 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (= 1 ~a21~0)) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse1 (<= ~a7~0 0)) (.cse2 (= ~a21~0 |old(~a21~0)|))) (or (and .cse0 .cse1 (= 1 ~a20~0) .cse2) (not (= 5 |old(~a16~0)|)) (<= ~a21~0 0) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (and (= 6 ~a16~0) .cse0 .cse1 (= 1 ~a17~0) .cse2 (= 15 ~a8~0)) (and (< ~a16~0 6) .cse0 .cse1 .cse3) (not (= 1 |old(~a20~0)|)) (and (= 1 ~a7~0) .cse3) (not (= 1 |old(~a21~0)|)) (and .cse0 (<= ~a17~0 0) .cse1 .cse2) (not (= 8 ~a12~0)))) [2020-07-21 01:22:10,358 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:22:10,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:22:10 BoogieIcfgContainer [2020-07-21 01:22:10,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:22:10,393 INFO L168 Benchmark]: Toolchain (without parser) took 69663.17 ms. Allocated memory was 138.9 MB in the beginning and 625.0 MB in the end (delta: 486.0 MB). Free memory was 102.2 MB in the beginning and 141.7 MB in the end (delta: -39.5 MB). Peak memory consumption was 508.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:22:10,393 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 01:22:10,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.73 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.8 MB in the beginning and 167.9 MB in the end (delta: -66.2 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:22:10,394 INFO L168 Benchmark]: Boogie Preprocessor took 133.01 ms. Allocated memory is still 204.5 MB. Free memory was 167.9 MB in the beginning and 163.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:22:10,397 INFO L168 Benchmark]: RCFGBuilder took 1487.49 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 163.0 MB in the beginning and 177.1 MB in the end (delta: -14.1 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:22:10,397 INFO L168 Benchmark]: TraceAbstraction took 67258.23 ms. Allocated memory was 238.6 MB in the beginning and 625.0 MB in the end (delta: 386.4 MB). Free memory was 177.1 MB in the beginning and 141.7 MB in the end (delta: 35.4 MB). Peak memory consumption was 484.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:22:10,403 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.73 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.8 MB in the beginning and 167.9 MB in the end (delta: -66.2 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.01 ms. Allocated memory is still 204.5 MB. Free memory was 167.9 MB in the beginning and 163.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1487.49 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 163.0 MB in the beginning and 177.1 MB in the end (delta: -14.1 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 67258.23 ms. Allocated memory was 238.6 MB in the beginning and 625.0 MB in the end (delta: 386.4 MB). Free memory was 177.1 MB in the beginning and 141.7 MB in the end (delta: 35.4 MB). Peak memory consumption was 484.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 560]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a20) && a21 == \old(a21)) || !(5 == \old(a16))) || a21 <= 0) || !(15 == \old(a8))) || !(\old(a7) <= 0)) || !(1 == \old(a17))) || (((((6 == a16 && !(1 == \old(a7))) && a7 <= 0) && 1 == a17) && a21 == \old(a21)) && 15 == a8)) || (((a16 < 6 && !(1 == \old(a7))) && a7 <= 0) && 1 == a21)) || !(1 == \old(a20))) || (1 == a7 && 1 == a21)) || !(1 == \old(a21))) || (((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && a21 == \old(a21))) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 62.5s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 37.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 6745 SDslu, 1027 SDs, 0 SdLazy, 18042 SolverSat, 1606 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3951 GetRequests, 3670 SyntacticMatches, 18 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3011 ImplicationChecksByTransitivity, 27.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3383occurred in iteration=11, 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, 12 MinimizatonAttempts, 1602 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 160 PreInvPairs, 200 NumberOfFragments, 759 HoareAnnotationTreeSize, 160 FomulaSimplifications, 89680 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 20445 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 19.9s InterpolantComputationTime, 2322 NumberOfCodeBlocks, 1617 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 3808 ConstructedInterpolants, 0 QuantifiedInterpolants, 12121056 SizeOfPredicates, 116 NumberOfNonLiveVariables, 4880 ConjunctsInSsa, 343 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 1140/1545 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...