/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:23:57,623 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:23:57,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:23:57,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:23:57,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:23:57,673 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 01:23:57,688 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:23:57,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:23:57,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:23:57,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:23:57,689 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:23:57,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:23:57,690 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:23:57,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:23:57,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:23:57,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:23:57,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:23:57,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:23:57,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:23:57,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:23:57,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:23:57,692 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:23:57,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:23:57,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:23:57,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:23:57,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:23:57,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:23:57,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:23:57,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:23:57,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:23:57,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:23:57,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:23:57,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:23:57,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:23:57,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:23:57,694 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 01:23:57,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:23:57,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:23:57,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:23:57,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:23:57,999 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:23:58,000 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label14.c [2020-07-21 01:23:58,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c41c739f/c5e2b9b6bd26474c8fa71aa98b7d9298/FLAG8da26bddd [2020-07-21 01:23:58,636 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:23:58,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label14.c [2020-07-21 01:23:58,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c41c739f/c5e2b9b6bd26474c8fa71aa98b7d9298/FLAG8da26bddd [2020-07-21 01:23:58,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c41c739f/c5e2b9b6bd26474c8fa71aa98b7d9298 [2020-07-21 01:23:58,959 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:23:58,962 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:23:58,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:58,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:23:58,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:23:58,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:58" (1/1) ... [2020-07-21 01:23:58,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562e9ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:58, skipping insertion in model container [2020-07-21 01:23:58,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:23:58" (1/1) ... [2020-07-21 01:23:58,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:23:59,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:23:59,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:59,562 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:23:59,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:23:59,685 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:23:59,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59 WrapperNode [2020-07-21 01:23:59,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:23:59,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:23:59,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:23:59,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:23:59,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59" (1/1) ... [2020-07-21 01:23:59,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59" (1/1) ... [2020-07-21 01:23:59,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59" (1/1) ... [2020-07-21 01:23:59,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59" (1/1) ... [2020-07-21 01:23:59,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59" (1/1) ... [2020-07-21 01:23:59,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59" (1/1) ... [2020-07-21 01:23:59,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59" (1/1) ... [2020-07-21 01:23:59,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:23:59,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:23:59,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:23:59,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:23:59,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59" (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 01:23:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:23:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:23:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:23:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:23:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:23:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:23:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:23:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:23:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:23:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:23:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:24:01,011 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:24:01,011 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:24:01,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:01 BoogieIcfgContainer [2020-07-21 01:24:01,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:24:01,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:24:01,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:24:01,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:24:01,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:23:58" (1/3) ... [2020-07-21 01:24:01,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a9b498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:01, skipping insertion in model container [2020-07-21 01:24:01,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:23:59" (2/3) ... [2020-07-21 01:24:01,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a9b498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:24:01, skipping insertion in model container [2020-07-21 01:24:01,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:24:01" (3/3) ... [2020-07-21 01:24:01,036 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label14.c [2020-07-21 01:24:01,047 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:24:01,060 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:24:01,074 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:24:01,106 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:24:01,107 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:24:01,107 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:24:01,107 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:24:01,107 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:24:01,108 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:24:01,108 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:24:01,108 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:24:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 01:24:01,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 01:24:01,144 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:01,145 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] [2020-07-21 01:24:01,145 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:01,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:01,152 INFO L82 PathProgramCache]: Analyzing trace with hash -871643495, now seen corresponding path program 1 times [2020-07-21 01:24:01,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:01,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [249465981] [2020-07-21 01:24:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:01,389 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:01,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:01,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-21 01:24:01,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:01,984 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:24:01,992 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:24:01,994 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:24:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:02,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:02,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [249465981] [2020-07-21 01:24:02,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:02,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-21 01:24:02,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297569614] [2020-07-21 01:24:02,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-21 01:24:02,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:02,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-21 01:24:02,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:24:02,134 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 10 states. [2020-07-21 01:24:03,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:03,335 INFO L93 Difference]: Finished difference Result 527 states and 878 transitions. [2020-07-21 01:24:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:24:03,337 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 123 [2020-07-21 01:24:03,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:03,352 INFO L225 Difference]: With dead ends: 527 [2020-07-21 01:24:03,352 INFO L226 Difference]: Without dead ends: 229 [2020-07-21 01:24:03,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2020-07-21 01:24:03,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-07-21 01:24:03,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-07-21 01:24:03,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-07-21 01:24:03,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 319 transitions. [2020-07-21 01:24:03,418 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 319 transitions. Word has length 123 [2020-07-21 01:24:03,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:03,419 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 319 transitions. [2020-07-21 01:24:03,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-21 01:24:03,419 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 319 transitions. [2020-07-21 01:24:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 01:24:03,423 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:03,423 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:03,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:03,630 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:03,631 INFO L82 PathProgramCache]: Analyzing trace with hash 95352584, now seen corresponding path program 1 times [2020-07-21 01:24:03,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:03,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189351709] [2020-07-21 01:24:03,633 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:03,725 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:24:03,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:03,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 01:24:03,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:04,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:04,648 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 6 conjuncts [2020-07-21 01:24:04,650 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 5 conjuncts [2020-07-21 01:24:04,651 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 4 conjuncts [2020-07-21 01:24:04,652 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 3 conjuncts [2020-07-21 01:24:04,653 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:24:04,674 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 6, 5, 1] term [2020-07-21 01:24:04,674 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:24:04,716 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:04,776 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:04,877 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:04,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189351709] [2020-07-21 01:24:04,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:04,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2020-07-21 01:24:04,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133889752] [2020-07-21 01:24:04,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-21 01:24:04,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:04,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-21 01:24:04,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:24:04,882 INFO L87 Difference]: Start difference. First operand 229 states and 319 transitions. Second operand 21 states. [2020-07-21 01:24:05,822 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:24:06,844 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-07-21 01:24:08,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:08,214 INFO L93 Difference]: Finished difference Result 738 states and 1083 transitions. [2020-07-21 01:24:08,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 01:24:08,216 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 132 [2020-07-21 01:24:08,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:08,229 INFO L225 Difference]: With dead ends: 738 [2020-07-21 01:24:08,230 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 01:24:08,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=516, Invalid=1290, Unknown=0, NotChecked=0, Total=1806 [2020-07-21 01:24:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 01:24:08,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 393. [2020-07-21 01:24:08,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-07-21 01:24:08,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 533 transitions. [2020-07-21 01:24:08,304 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 533 transitions. Word has length 132 [2020-07-21 01:24:08,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:08,305 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 533 transitions. [2020-07-21 01:24:08,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-21 01:24:08,305 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 533 transitions. [2020-07-21 01:24:08,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-21 01:24:08,308 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:08,309 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:08,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:08,515 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:08,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:08,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1787673749, now seen corresponding path program 1 times [2020-07-21 01:24:08,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:08,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171068633] [2020-07-21 01:24:08,518 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:08,616 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:24:08,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:08,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:24:08,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:08,656 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:24:08,656 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:24:08,682 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:24:08,700 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 01:24:08,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:08,784 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:24:08,785 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:08,811 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:24:08,868 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:08,872 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:24:08,896 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 01:24:08,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171068633] [2020-07-21 01:24:08,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:08,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:08,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900457976] [2020-07-21 01:24:08,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:08,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:08,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:08,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:08,899 INFO L87 Difference]: Start difference. First operand 393 states and 533 transitions. Second operand 7 states. [2020-07-21 01:24:10,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:10,648 INFO L93 Difference]: Finished difference Result 1434 states and 2028 transitions. [2020-07-21 01:24:10,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 01:24:10,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-07-21 01:24:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:10,658 INFO L225 Difference]: With dead ends: 1434 [2020-07-21 01:24:10,658 INFO L226 Difference]: Without dead ends: 1047 [2020-07-21 01:24:10,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:24:10,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2020-07-21 01:24:10,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1015. [2020-07-21 01:24:10,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-07-21 01:24:10,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1272 transitions. [2020-07-21 01:24:10,702 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1272 transitions. Word has length 144 [2020-07-21 01:24:10,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:10,703 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1272 transitions. [2020-07-21 01:24:10,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:10,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1272 transitions. [2020-07-21 01:24:10,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-07-21 01:24:10,708 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:10,708 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:10,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:10,916 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:10,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:10,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1765558216, now seen corresponding path program 1 times [2020-07-21 01:24:10,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:10,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145230051] [2020-07-21 01:24:10,919 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 01:24:11,017 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:11,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:11,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:11,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:24:11,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:11,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145230051] [2020-07-21 01:24:11,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:11,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:11,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296917664] [2020-07-21 01:24:11,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:11,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:11,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:11,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:11,060 INFO L87 Difference]: Start difference. First operand 1015 states and 1272 transitions. Second operand 3 states. [2020-07-21 01:24:11,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:11,664 INFO L93 Difference]: Finished difference Result 2323 states and 2938 transitions. [2020-07-21 01:24:11,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:11,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-07-21 01:24:11,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:11,673 INFO L225 Difference]: With dead ends: 2323 [2020-07-21 01:24:11,673 INFO L226 Difference]: Without dead ends: 1314 [2020-07-21 01:24:11,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 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 01:24:11,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-07-21 01:24:11,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-07-21 01:24:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-07-21 01:24:11,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1639 transitions. [2020-07-21 01:24:11,721 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1639 transitions. Word has length 158 [2020-07-21 01:24:11,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:11,721 INFO L479 AbstractCegarLoop]: Abstraction has 1314 states and 1639 transitions. [2020-07-21 01:24:11,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:11,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1639 transitions. [2020-07-21 01:24:11,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 01:24:11,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:11,727 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:11,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:11,943 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:11,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:11,943 INFO L82 PathProgramCache]: Analyzing trace with hash 194882078, now seen corresponding path program 1 times [2020-07-21 01:24:11,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:11,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798491243] [2020-07-21 01:24:11,944 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 01:24:12,047 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:12,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:12,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:12,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 01:24:12,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:12,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798491243] [2020-07-21 01:24:12,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:12,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:12,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499895046] [2020-07-21 01:24:12,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:12,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:12,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:12,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:12,100 INFO L87 Difference]: Start difference. First operand 1314 states and 1639 transitions. Second operand 3 states. [2020-07-21 01:24:12,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:12,628 INFO L93 Difference]: Finished difference Result 3498 states and 4468 transitions. [2020-07-21 01:24:12,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:12,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-07-21 01:24:12,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:12,642 INFO L225 Difference]: With dead ends: 3498 [2020-07-21 01:24:12,642 INFO L226 Difference]: Without dead ends: 2190 [2020-07-21 01:24:12,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 01:24:12,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2020-07-21 01:24:12,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2043. [2020-07-21 01:24:12,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2043 states. [2020-07-21 01:24:12,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2601 transitions. [2020-07-21 01:24:12,751 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2601 transitions. Word has length 165 [2020-07-21 01:24:12,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:12,753 INFO L479 AbstractCegarLoop]: Abstraction has 2043 states and 2601 transitions. [2020-07-21 01:24:12,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:12,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2601 transitions. [2020-07-21 01:24:12,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-21 01:24:12,762 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:12,771 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:12,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:12,986 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:12,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:12,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1276255369, now seen corresponding path program 1 times [2020-07-21 01:24:12,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:12,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455339658] [2020-07-21 01:24:12,987 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 01:24:13,099 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:13,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:13,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:24:13,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:13,183 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:13,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:24:13,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455339658] [2020-07-21 01:24:13,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:13,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:24:13,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917057061] [2020-07-21 01:24:13,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:24:13,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:13,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:24:13,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:24:13,263 INFO L87 Difference]: Start difference. First operand 2043 states and 2601 transitions. Second operand 6 states. [2020-07-21 01:24:14,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:14,051 INFO L93 Difference]: Finished difference Result 5186 states and 7186 transitions. [2020-07-21 01:24:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:24:14,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-07-21 01:24:14,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:14,073 INFO L225 Difference]: With dead ends: 5186 [2020-07-21 01:24:14,073 INFO L226 Difference]: Without dead ends: 3149 [2020-07-21 01:24:14,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 362 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 01:24:14,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2020-07-21 01:24:14,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 2659. [2020-07-21 01:24:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2659 states. [2020-07-21 01:24:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3383 transitions. [2020-07-21 01:24:14,176 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3383 transitions. Word has length 183 [2020-07-21 01:24:14,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:14,176 INFO L479 AbstractCegarLoop]: Abstraction has 2659 states and 3383 transitions. [2020-07-21 01:24:14,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:24:14,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3383 transitions. [2020-07-21 01:24:14,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-07-21 01:24:14,190 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:14,191 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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 01:24:14,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:14,405 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:14,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:14,406 INFO L82 PathProgramCache]: Analyzing trace with hash 2141255972, now seen corresponding path program 1 times [2020-07-21 01:24:14,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:14,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144642436] [2020-07-21 01:24:14,407 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 01:24:14,522 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:14,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:14,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:14,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-21 01:24:14,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:14,711 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 125 proven. 28 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 01:24:14,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144642436] [2020-07-21 01:24:14,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:14,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:14,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099671288] [2020-07-21 01:24:14,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:14,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:14,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:14,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:14,714 INFO L87 Difference]: Start difference. First operand 2659 states and 3383 transitions. Second operand 7 states. [2020-07-21 01:24:15,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:15,828 INFO L93 Difference]: Finished difference Result 5948 states and 7617 transitions. [2020-07-21 01:24:15,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:24:15,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 216 [2020-07-21 01:24:15,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:15,845 INFO L225 Difference]: With dead ends: 5948 [2020-07-21 01:24:15,845 INFO L226 Difference]: Without dead ends: 2406 [2020-07-21 01:24:15,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 427 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:24:15,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2020-07-21 01:24:15,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2350. [2020-07-21 01:24:15,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2350 states. [2020-07-21 01:24:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 2839 transitions. [2020-07-21 01:24:15,932 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 2839 transitions. Word has length 216 [2020-07-21 01:24:15,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:15,933 INFO L479 AbstractCegarLoop]: Abstraction has 2350 states and 2839 transitions. [2020-07-21 01:24:15,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:15,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 2839 transitions. [2020-07-21 01:24:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-07-21 01:24:15,946 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:15,946 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:16,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:16,199 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:16,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:16,200 INFO L82 PathProgramCache]: Analyzing trace with hash 184021445, now seen corresponding path program 1 times [2020-07-21 01:24:16,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:16,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468876572] [2020-07-21 01:24:16,201 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 01:24:16,314 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:16,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:16,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:16,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 01:24:16,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 113 proven. 28 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 01:24:16,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468876572] [2020-07-21 01:24:16,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:16,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:24:16,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188822470] [2020-07-21 01:24:16,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:24:16,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:16,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:24:16,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:24:16,458 INFO L87 Difference]: Start difference. First operand 2350 states and 2839 transitions. Second operand 7 states. [2020-07-21 01:24:17,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:17,853 INFO L93 Difference]: Finished difference Result 4857 states and 5878 transitions. [2020-07-21 01:24:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:24:17,855 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-07-21 01:24:17,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:17,864 INFO L225 Difference]: With dead ends: 4857 [2020-07-21 01:24:17,864 INFO L226 Difference]: Without dead ends: 2355 [2020-07-21 01:24:17,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 428 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:24:17,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2020-07-21 01:24:17,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 2339. [2020-07-21 01:24:17,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2339 states. [2020-07-21 01:24:17,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 2593 transitions. [2020-07-21 01:24:17,923 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 2593 transitions. Word has length 215 [2020-07-21 01:24:17,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:17,923 INFO L479 AbstractCegarLoop]: Abstraction has 2339 states and 2593 transitions. [2020-07-21 01:24:17,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:24:17,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 2593 transitions. [2020-07-21 01:24:17,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-07-21 01:24:17,932 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:17,932 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:24:18,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:18,136 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:18,137 INFO L82 PathProgramCache]: Analyzing trace with hash -548929934, now seen corresponding path program 1 times [2020-07-21 01:24:18,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:18,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999396195] [2020-07-21 01:24:18,138 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 01:24:18,258 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:24:18,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:18,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:24:18,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-21 01:24:18,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:24:18,386 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 143 proven. 30 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-07-21 01:24:18,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [999396195] [2020-07-21 01:24:18,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:24:18,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:24:18,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502126823] [2020-07-21 01:24:18,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:24:18,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:18,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:24:18,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:24:18,389 INFO L87 Difference]: Start difference. First operand 2339 states and 2593 transitions. Second operand 6 states. [2020-07-21 01:24:19,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:19,244 INFO L93 Difference]: Finished difference Result 5141 states and 5811 transitions. [2020-07-21 01:24:19,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:24:19,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 228 [2020-07-21 01:24:19,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:19,258 INFO L225 Difference]: With dead ends: 5141 [2020-07-21 01:24:19,258 INFO L226 Difference]: Without dead ends: 2808 [2020-07-21 01:24:19,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 452 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:24:19,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2020-07-21 01:24:19,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2789. [2020-07-21 01:24:19,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2789 states. [2020-07-21 01:24:19,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 3118 transitions. [2020-07-21 01:24:19,357 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 3118 transitions. Word has length 228 [2020-07-21 01:24:19,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:19,358 INFO L479 AbstractCegarLoop]: Abstraction has 2789 states and 3118 transitions. [2020-07-21 01:24:19,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:24:19,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 3118 transitions. [2020-07-21 01:24:19,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 01:24:19,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:24:19,367 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, 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] [2020-07-21 01:24:19,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:19,581 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:24:19,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:24:19,581 INFO L82 PathProgramCache]: Analyzing trace with hash -726614399, now seen corresponding path program 1 times [2020-07-21 01:24:19,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:24:19,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556027944] [2020-07-21 01:24:19,582 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 01:24:19,742 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:24:19,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:24:19,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:24:19,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:24:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 01:24:19,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:24:19,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556027944] [2020-07-21 01:24:19,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:24:19,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:24:19,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768270146] [2020-07-21 01:24:19,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:24:19,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:24:19,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:24:19,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:24:19,810 INFO L87 Difference]: Start difference. First operand 2789 states and 3118 transitions. Second operand 3 states. [2020-07-21 01:24:20,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:24:20,330 INFO L93 Difference]: Finished difference Result 5863 states and 6603 transitions. [2020-07-21 01:24:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:24:20,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-07-21 01:24:20,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:24:20,332 INFO L225 Difference]: With dead ends: 5863 [2020-07-21 01:24:20,332 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:24:20,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 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 01:24:20,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:24:20,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:24:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:24:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:24:20,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2020-07-21 01:24:20,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:24:20,343 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:24:20,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:24:20,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:24:20,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:24:20,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:24:20,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:24:22,092 WARN L193 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 79 [2020-07-21 01:24:22,643 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 56 [2020-07-21 01:24:23,208 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 56 [2020-07-21 01:24:23,212 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:24:23,213 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) (not (= 1 ~a21~0))) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 01:24:23,213 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:24:23,213 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,213 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,214 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,214 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,214 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,214 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 01:24:23,214 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 01:24:23,214 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 01:24:23,215 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 01:24:23,215 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 01:24:23,215 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 01:24:23,215 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 01:24:23,215 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 01:24:23,216 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 01:24:23,216 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 01:24:23,216 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:24:23,216 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 01:24:23,216 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 01:24:23,216 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,216 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,216 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,217 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,217 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 01:24:23,217 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,217 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 01:24:23,217 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 01:24:23,217 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 01:24:23,217 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 01:24:23,217 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 01:24:23,218 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 01:24:23,219 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,219 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,219 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,219 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,219 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,219 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 523) no Hoare annotation was computed. [2020-07-21 01:24:23,219 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:24:23,220 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 01:24:23,220 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 01:24:23,220 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 01:24:23,220 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 01:24:23,220 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 01:24:23,220 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 01:24:23,220 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 01:24:23,220 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 01:24:23,221 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 01:24:23,221 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 01:24:23,221 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,221 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,221 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,221 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,221 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,221 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 01:24:23,221 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 01:24:23,222 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 01:24:23,222 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 01:24:23,222 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 01:24:23,222 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 01:24:23,222 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 01:24:23,222 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 01:24:23,222 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 01:24:23,222 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 01:24:23,222 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 01:24:23,223 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 01:24:23,223 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 01:24:23,223 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,223 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,223 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,223 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,223 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,223 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 01:24:23,223 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 01:24:23,224 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 01:24:23,224 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 01:24:23,224 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 01:24:23,224 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 01:24:23,224 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 01:24:23,224 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 01:24:23,224 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 01:24:23,224 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 01:24:23,224 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,225 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 01:24:23,226 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,226 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:24:23,226 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,226 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:24:23,226 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 01:24:23,226 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 01:24:23,226 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,227 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,227 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 01:24:23,227 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 01:24:23,227 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 01:24:23,227 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 01:24:23,227 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 01:24:23,227 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 01:24:23,227 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 01:24:23,227 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 01:24:23,228 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 01:24:23,228 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 01:24:23,228 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 01:24:23,228 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,228 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,228 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,228 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,228 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,228 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 01:24:23,229 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 01:24:23,230 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 01:24:23,230 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,230 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,230 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,230 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,230 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,230 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,230 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 01:24:23,231 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 01:24:23,231 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 01:24:23,231 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 01:24:23,231 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 01:24:23,231 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 01:24:23,231 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 01:24:23,231 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 01:24:23,231 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 01:24:23,232 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 01:24:23,232 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 01:24:23,232 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 01:24:23,232 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 01:24:23,232 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 01:24:23,232 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,232 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,232 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,233 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse18 (<= ~a28~0 |old(~a28~0)|)) (.cse16 (<= 8 ~a17~0)) (.cse15 (= 1 ~a25~0)) (.cse0 (= 1 |old(~a25~0)|)) (.cse2 (<= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a19~0 |old(~a19~0)|)) (.cse4 (<= |old(~a28~0)| ~a28~0)) (.cse5 (= ~a25~0 |old(~a25~0)|))) (let ((.cse8 (not (= 1 |old(~a19~0)|))) (.cse1 (<= ~a11~0 |old(~a11~0)|)) (.cse6 (not (= 1 ~a21~0))) (.cse7 (not (<= |old(~a11~0)| 0))) (.cse12 (and .cse2 .cse3 .cse4 .cse5)) (.cse13 (not (<= |old(~a17~0)| 7))) (.cse14 (not (<= |old(~a28~0)| 9))) (.cse9 (not (<= 8 |old(~a17~0)|))) (.cse10 (not .cse0)) (.cse11 (and .cse2 .cse18 .cse16 .cse3 .cse4 .cse15)) (.cse17 (not (< |old(~a28~0)| 11)))) (and (or (and .cse0 (not (< 9 |old(~a28~0)|))) (and .cse1 .cse2 .cse3 .cse4 .cse5) (not (< 8 |old(~a28~0)|)) .cse6 .cse7) (or .cse8 .cse9 .cse10 .cse11) (or .cse8 .cse12 .cse13) (or .cse1 .cse9 .cse6 .cse7) (or (not (<= 9 |old(~a28~0)|)) .cse14 .cse10 (and .cse2 (<= ~a28~0 9) .cse3 (or (<= ~a11~0 0) (< 0 |old(~a11~0)|) .cse6) .cse4 .cse15)) (or .cse8 (and .cse2 .cse16 (< ~a28~0 11) .cse3 .cse4 .cse5) .cse9 .cse17) (or .cse8 .cse1 .cse6 .cse7) (or .cse9 (and .cse18 .cse16) .cse6 .cse7) (or .cse12 .cse13 (not (<= 10 |old(~a28~0)|))) (or .cse14 .cse9 (and .cse2 .cse18 .cse16 .cse3 .cse4 .cse5)) (or .cse9 .cse10 .cse11 .cse17)))) [2020-07-21 01:24:23,233 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,233 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,233 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,233 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 01:24:23,233 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 01:24:23,233 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 01:24:23,234 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 01:24:23,235 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,235 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,235 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,235 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,235 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,235 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,235 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 01:24:23,235 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 01:24:23,235 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 01:24:23,236 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 01:24:23,236 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 01:24:23,236 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 01:24:23,236 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 01:24:23,236 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 01:24:23,236 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 01:24:23,236 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 01:24:23,236 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 01:24:23,236 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 01:24:23,237 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 01:24:23,238 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 01:24:23,238 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 01:24:23,238 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 01:24:23,238 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 01:24:23,238 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 01:24:23,238 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 01:24:23,238 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 01:24:23,238 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 01:24:23,238 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 01:24:23,239 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 01:24:23,239 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:24:23,239 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 01:24:23,239 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 01:24:23,239 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 01:24:23,239 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:24:23,239 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 01:24:23,239 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 01:24:23,239 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 01:24:23,240 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:24:23,240 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a25~0 0) (= 7 ~a28~0) (= 1 ~a21~0) (= 8 ~a17~0)) [2020-07-21 01:24:23,240 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:24:23,240 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:24:23,240 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= 7 |old(~a28~0)|)) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and (<= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= 8 ~a17~0) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|))) [2020-07-21 01:24:23,240 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (< ~a28~0 11)) (.cse2 (= 1 ~a19~0)) (.cse3 (<= ~a17~0 |old(~a17~0)|)) (.cse1 (= 1 ~a25~0)) (.cse0 (<= ~a17~0 7)) (.cse5 (<= 10 ~a28~0)) (.cse6 (or (and (= 1 |old(~a25~0)|) (<= |old(~a28~0)| 9)) (<= |old(~a28~0)| 8)))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= 9 ~a28~0) .cse1) (not (= 7 |old(~a28~0)|)) (and .cse2 .cse3 .cse4) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse3 .cse4 .cse5 .cse6 .cse1) (and .cse3 (<= 8 ~a17~0) (<= ~a28~0 9)) (not (= 8 |old(~a17~0)|)) (and .cse3 (< 8 ~a28~0) (<= ~a11~0 0)) (not (<= |old(~a25~0)| 0)) (and .cse2 .cse3 .cse1) (and .cse0 .cse5 .cse6))) [2020-07-21 01:24:23,241 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:24:23,241 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 01:24:23,241 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (< ~a28~0 11)) (.cse2 (= 1 ~a19~0)) (.cse3 (<= ~a17~0 |old(~a17~0)|)) (.cse1 (= 1 ~a25~0)) (.cse0 (<= ~a17~0 7)) (.cse5 (<= 10 ~a28~0)) (.cse6 (or (and (= 1 |old(~a25~0)|) (<= |old(~a28~0)| 9)) (<= |old(~a28~0)| 8)))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= 9 ~a28~0) .cse1) (not (= 7 |old(~a28~0)|)) (and .cse2 .cse3 .cse4) (not (= 1 ~a21~0)) (not (<= |old(~a11~0)| 0)) (and .cse3 .cse4 .cse5 .cse6 .cse1) (and .cse3 (<= 8 ~a17~0) (<= ~a28~0 9)) (not (= 8 |old(~a17~0)|)) (and .cse3 (< 8 ~a28~0) (<= ~a11~0 0)) (not (<= |old(~a25~0)| 0)) (and .cse2 .cse3 .cse1) (and .cse0 .cse5 .cse6))) [2020-07-21 01:24:23,241 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 01:24:23,241 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 01:24:23,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:24:23 BoogieIcfgContainer [2020-07-21 01:24:23,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:24:23,274 INFO L168 Benchmark]: Toolchain (without parser) took 24313.64 ms. Allocated memory was 138.9 MB in the beginning and 545.8 MB in the end (delta: 406.8 MB). Free memory was 102.1 MB in the beginning and 224.4 MB in the end (delta: -122.2 MB). Peak memory consumption was 387.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:23,275 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 01:24:23,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.01 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.7 MB in the beginning and 171.1 MB in the end (delta: -69.4 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:23,276 INFO L168 Benchmark]: Boogie Preprocessor took 107.01 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 166.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:23,277 INFO L168 Benchmark]: RCFGBuilder took 1228.58 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 166.1 MB in the beginning and 181.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:23,277 INFO L168 Benchmark]: TraceAbstraction took 22248.64 ms. Allocated memory was 238.0 MB in the beginning and 545.8 MB in the end (delta: 307.8 MB). Free memory was 181.2 MB in the beginning and 224.4 MB in the end (delta: -43.2 MB). Peak memory consumption was 367.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:24:23,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.01 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.7 MB in the beginning and 171.1 MB in the end (delta: -69.4 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.01 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 166.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1228.58 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 166.1 MB in the beginning and 181.2 MB in the end (delta: -15.0 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22248.64 ms. Allocated memory was 238.0 MB in the beginning and 545.8 MB in the end (delta: 307.8 MB). Free memory was 181.2 MB in the beginning and 224.4 MB in the end (delta: -43.2 MB). Peak memory consumption was 367.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 523]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((!(1 == \old(a19)) || ((a17 <= 7 && 9 <= a28) && 1 == a25)) || !(7 == \old(a28))) || ((1 == a19 && a17 <= \old(a17)) && a28 < 11)) || !(1 == a21)) || !(\old(a11) <= 0)) || ((((a17 <= \old(a17) && a28 < 11) && 10 <= a28) && ((1 == \old(a25) && \old(a28) <= 9) || \old(a28) <= 8)) && 1 == a25)) || ((a17 <= \old(a17) && 8 <= a17) && a28 <= 9)) || !(8 == \old(a17))) || ((a17 <= \old(a17) && 8 < a28) && a11 <= 0)) || !(\old(a25) <= 0)) || ((1 == a19 && a17 <= \old(a17)) && 1 == a25)) || ((a17 <= 7 && 10 <= a28) && ((1 == \old(a25) && \old(a28) <= 9) || \old(a28) <= 8)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.4s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 923 SDtfs, 4560 SDslu, 742 SDs, 0 SdLazy, 8425 SolverSat, 1321 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2965 GetRequests, 2857 SyntacticMatches, 8 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2789occurred in iteration=9, 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, 10 MinimizatonAttempts, 790 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 141 PreInvPairs, 203 NumberOfFragments, 623 HoareAnnotationTreeSize, 141 FomulaSimplifications, 8281 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5152 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1793 NumberOfCodeBlocks, 1171 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2895 ConstructedInterpolants, 0 QuantifiedInterpolants, 1832909 SizeOfPredicates, 39 NumberOfNonLiveVariables, 3730 ConjunctsInSsa, 133 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 1474/1580 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...