/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:30:27,357 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 01:30:27,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:30:27,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:30:27,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:30:27,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:30:27,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:30:27,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:30:27,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:30:27,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:30:27,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:30:27,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:30:27,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:30:27,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:30:27,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:30:27,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:30:27,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:30:27,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:30:27,423 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 01:30:27,439 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:30:27,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:30:27,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:30:27,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:30:27,441 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:30:27,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:30:27,442 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:30:27,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:30:27,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:30:27,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:30:27,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:30:27,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:30:27,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:30:27,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:30:27,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:30:27,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:30:27,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:30:27,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:30:27,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:30:27,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:30:27,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:30:27,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:30:27,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:30:27,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:30:27,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:30:27,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:30:27,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:27,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:30:27,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:30:27,446 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 01:30:27,730 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:30:27,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:30:27,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:30:27,758 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:30:27,758 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:30:27,760 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label53.c [2020-07-21 01:30:27,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77270a1f0/524cf7b8a9aa4609b4fe9157d96ef4c1/FLAGe62160f2c [2020-07-21 01:30:28,483 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:30:28,484 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label53.c [2020-07-21 01:30:28,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77270a1f0/524cf7b8a9aa4609b4fe9157d96ef4c1/FLAGe62160f2c [2020-07-21 01:30:28,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77270a1f0/524cf7b8a9aa4609b4fe9157d96ef4c1 [2020-07-21 01:30:28,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:30:28,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:30:28,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:30:28,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:30:28,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:30:28,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:30:28" (1/1) ... [2020-07-21 01:30:28,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731c2c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:28, skipping insertion in model container [2020-07-21 01:30:28,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:30:28" (1/1) ... [2020-07-21 01:30:28,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:30:28,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:30:29,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:30:29,399 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:30:29,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:30:29,589 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:30:29,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29 WrapperNode [2020-07-21 01:30:29,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:30:29,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:30:29,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:30:29,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:30:29,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29" (1/1) ... [2020-07-21 01:30:29,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29" (1/1) ... [2020-07-21 01:30:29,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29" (1/1) ... [2020-07-21 01:30:29,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29" (1/1) ... [2020-07-21 01:30:29,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29" (1/1) ... [2020-07-21 01:30:29,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29" (1/1) ... [2020-07-21 01:30:29,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29" (1/1) ... [2020-07-21 01:30:29,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:30:29,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:30:29,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:30:29,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:30:29,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29" (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 01:30:29,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:30:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:30:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:30:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:30:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:30:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:30:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:30:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:30:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:30:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:30:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:30:31,082 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:30:31,082 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:30:31,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:30:31 BoogieIcfgContainer [2020-07-21 01:30:31,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:30:31,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:30:31,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:30:31,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:30:31,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:30:28" (1/3) ... [2020-07-21 01:30:31,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3766486e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:30:31, skipping insertion in model container [2020-07-21 01:30:31,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:30:29" (2/3) ... [2020-07-21 01:30:31,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3766486e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:30:31, skipping insertion in model container [2020-07-21 01:30:31,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:30:31" (3/3) ... [2020-07-21 01:30:31,097 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label53.c [2020-07-21 01:30:31,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:30:31,117 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:30:31,132 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:30:31,158 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:30:31,158 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:30:31,159 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:30:31,159 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:30:31,159 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:30:31,159 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:30:31,160 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:30:31,160 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:30:31,183 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 01:30:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-21 01:30:31,192 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:31,193 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] [2020-07-21 01:30:31,193 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:31,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:31,199 INFO L82 PathProgramCache]: Analyzing trace with hash 253834415, now seen corresponding path program 1 times [2020-07-21 01:30:31,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:31,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [121123930] [2020-07-21 01:30:31,209 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 01:30:31,374 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:31,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:31,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:30:31,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:31,494 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 01:30:31,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:30:31,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [121123930] [2020-07-21 01:30:31,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:30:31,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:30:31,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414441023] [2020-07-21 01:30:31,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:30:31,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:31,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:30:31,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:30:31,526 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 01:30:32,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:32,508 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 01:30:32,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:30:32,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-07-21 01:30:32,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:32,527 INFO L225 Difference]: With dead ends: 571 [2020-07-21 01:30:32,527 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 01:30:32,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 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 01:30:32,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 01:30:32,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 01:30:32,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 01:30:32,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 01:30:32,605 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 48 [2020-07-21 01:30:32,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:32,606 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 01:30:32,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:30:32,606 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 01:30:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-21 01:30:32,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:32,612 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:30:32,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:32,828 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:32,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:32,829 INFO L82 PathProgramCache]: Analyzing trace with hash 447309458, now seen corresponding path program 1 times [2020-07-21 01:30:32,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:32,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563649218] [2020-07-21 01:30:32,830 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 01:30:32,914 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:32,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:32,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:30:32,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:30:32,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:33,090 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 01:30:33,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563649218] [2020-07-21 01:30:33,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:30:33,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 01:30:33,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876051819] [2020-07-21 01:30:33,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:30:33,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:33,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:30:33,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:33,096 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 01:30:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:33,871 INFO L93 Difference]: Finished difference Result 586 states and 788 transitions. [2020-07-21 01:30:33,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:30:33,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2020-07-21 01:30:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:33,879 INFO L225 Difference]: With dead ends: 586 [2020-07-21 01:30:33,879 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 01:30:33,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 228 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:33,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 01:30:33,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 01:30:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 01:30:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 786 transitions. [2020-07-21 01:30:33,943 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 786 transitions. Word has length 118 [2020-07-21 01:30:33,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:33,943 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 786 transitions. [2020-07-21 01:30:33,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:30:33,944 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 786 transitions. [2020-07-21 01:30:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-21 01:30:33,946 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:33,947 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:30:34,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:34,160 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:34,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:34,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1295505465, now seen corresponding path program 1 times [2020-07-21 01:30:34,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:34,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889360042] [2020-07-21 01:30:34,163 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 01:30:34,239 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:30:34,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:34,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 01:30:34,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:34,333 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:34,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:30:34,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889360042] [2020-07-21 01:30:34,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:30:34,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:30:34,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287260332] [2020-07-21 01:30:34,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:30:34,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:34,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:30:34,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:30:34,336 INFO L87 Difference]: Start difference. First operand 584 states and 786 transitions. Second operand 5 states. [2020-07-21 01:30:35,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:35,316 INFO L93 Difference]: Finished difference Result 1321 states and 1762 transitions. [2020-07-21 01:30:35,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:30:35,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-07-21 01:30:35,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:35,321 INFO L225 Difference]: With dead ends: 1321 [2020-07-21 01:30:35,322 INFO L226 Difference]: Without dead ends: 743 [2020-07-21 01:30:35,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:30:35,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2020-07-21 01:30:35,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 596. [2020-07-21 01:30:35,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-07-21 01:30:35,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 794 transitions. [2020-07-21 01:30:35,355 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 794 transitions. Word has length 121 [2020-07-21 01:30:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:35,356 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 794 transitions. [2020-07-21 01:30:35,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:30:35,356 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 794 transitions. [2020-07-21 01:30:35,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 01:30:35,358 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:35,358 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:30:35,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:35,572 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:35,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1735493107, now seen corresponding path program 1 times [2020-07-21 01:30:35,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:35,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291025219] [2020-07-21 01:30:35,575 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 01:30:35,686 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:35,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:35,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:30:35,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:35,755 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:35,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:30:35,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291025219] [2020-07-21 01:30:35,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:30:35,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:30:35,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016493304] [2020-07-21 01:30:35,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:30:35,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:35,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:30:35,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:30:35,758 INFO L87 Difference]: Start difference. First operand 596 states and 794 transitions. Second operand 3 states. [2020-07-21 01:30:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:36,406 INFO L93 Difference]: Finished difference Result 1337 states and 1916 transitions. [2020-07-21 01:30:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:30:36,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-21 01:30:36,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:36,416 INFO L225 Difference]: With dead ends: 1337 [2020-07-21 01:30:36,417 INFO L226 Difference]: Without dead ends: 890 [2020-07-21 01:30:36,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 01:30:36,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-07-21 01:30:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 888. [2020-07-21 01:30:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2020-07-21 01:30:36,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1202 transitions. [2020-07-21 01:30:36,452 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1202 transitions. Word has length 127 [2020-07-21 01:30:36,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:36,453 INFO L479 AbstractCegarLoop]: Abstraction has 888 states and 1202 transitions. [2020-07-21 01:30:36,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:30:36,453 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1202 transitions. [2020-07-21 01:30:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-21 01:30:36,457 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:36,458 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:30:36,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:36,665 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:36,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:36,666 INFO L82 PathProgramCache]: Analyzing trace with hash 210480566, now seen corresponding path program 1 times [2020-07-21 01:30:36,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:36,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747837117] [2020-07-21 01:30:36,668 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 01:30:36,783 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:36,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:36,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 01:30:36,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 01:30:36,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:37,011 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 01:30:37,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747837117] [2020-07-21 01:30:37,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:30:37,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2020-07-21 01:30:37,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232564743] [2020-07-21 01:30:37,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:30:37,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:37,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:30:37,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:30:37,014 INFO L87 Difference]: Start difference. First operand 888 states and 1202 transitions. Second operand 5 states. [2020-07-21 01:30:37,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:37,949 INFO L93 Difference]: Finished difference Result 1939 states and 2687 transitions. [2020-07-21 01:30:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:30:37,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-07-21 01:30:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:37,962 INFO L225 Difference]: With dead ends: 1939 [2020-07-21 01:30:37,962 INFO L226 Difference]: Without dead ends: 1200 [2020-07-21 01:30:37,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 372 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:30:37,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2020-07-21 01:30:38,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1190. [2020-07-21 01:30:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1190 states. [2020-07-21 01:30:38,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1474 transitions. [2020-07-21 01:30:38,018 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1474 transitions. Word has length 191 [2020-07-21 01:30:38,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:38,019 INFO L479 AbstractCegarLoop]: Abstraction has 1190 states and 1474 transitions. [2020-07-21 01:30:38,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:30:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1474 transitions. [2020-07-21 01:30:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-07-21 01:30:38,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:38,030 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:30:38,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:38,246 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:38,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:38,247 INFO L82 PathProgramCache]: Analyzing trace with hash 16531789, now seen corresponding path program 1 times [2020-07-21 01:30:38,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:38,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239060362] [2020-07-21 01:30:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 01:30:38,360 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:38,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:38,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:30:38,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:38,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:38,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239060362] [2020-07-21 01:30:38,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:30:38,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 01:30:38,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681792564] [2020-07-21 01:30:38,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:30:38,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:38,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:30:38,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:30:38,588 INFO L87 Difference]: Start difference. First operand 1190 states and 1474 transitions. Second operand 8 states. [2020-07-21 01:30:39,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:39,980 INFO L93 Difference]: Finished difference Result 2841 states and 3740 transitions. [2020-07-21 01:30:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:30:39,980 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 208 [2020-07-21 01:30:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:39,993 INFO L225 Difference]: With dead ends: 2841 [2020-07-21 01:30:39,993 INFO L226 Difference]: Without dead ends: 1800 [2020-07-21 01:30:39,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:30:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2020-07-21 01:30:40,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1645. [2020-07-21 01:30:40,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2020-07-21 01:30:40,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2115 transitions. [2020-07-21 01:30:40,056 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2115 transitions. Word has length 208 [2020-07-21 01:30:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:40,057 INFO L479 AbstractCegarLoop]: Abstraction has 1645 states and 2115 transitions. [2020-07-21 01:30:40,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:30:40,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2115 transitions. [2020-07-21 01:30:40,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-07-21 01:30:40,064 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:40,065 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:30:40,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:40,280 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:40,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:40,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1796385774, now seen corresponding path program 1 times [2020-07-21 01:30:40,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:40,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496627888] [2020-07-21 01:30:40,282 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 01:30:40,431 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:30:40,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:40,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:30:40,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:40,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:40,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496627888] [2020-07-21 01:30:40,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:30:40,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:30:40,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158418869] [2020-07-21 01:30:40,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:30:40,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:30:40,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:30:40,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:30:40,695 INFO L87 Difference]: Start difference. First operand 1645 states and 2115 transitions. Second operand 6 states. [2020-07-21 01:30:41,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:41,766 INFO L93 Difference]: Finished difference Result 3175 states and 4193 transitions. [2020-07-21 01:30:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:30:41,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 259 [2020-07-21 01:30:41,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:41,778 INFO L225 Difference]: With dead ends: 3175 [2020-07-21 01:30:41,778 INFO L226 Difference]: Without dead ends: 1679 [2020-07-21 01:30:41,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 514 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 01:30:41,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2020-07-21 01:30:41,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1504. [2020-07-21 01:30:41,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1504 states. [2020-07-21 01:30:41,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1777 transitions. [2020-07-21 01:30:41,830 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1777 transitions. Word has length 259 [2020-07-21 01:30:41,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:41,831 INFO L479 AbstractCegarLoop]: Abstraction has 1504 states and 1777 transitions. [2020-07-21 01:30:41,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:30:41,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1777 transitions. [2020-07-21 01:30:41,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-07-21 01:30:41,836 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:41,837 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:30:42,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:42,051 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:42,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2020149331, now seen corresponding path program 1 times [2020-07-21 01:30:42,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:42,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993332497] [2020-07-21 01:30:42,054 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 01:30:42,143 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:30:42,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:42,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-21 01:30:42,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:42,183 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:30:42,186 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:57,201 WARN L193 SmtUtils]: Spent 14.97 s on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 01:30:57,250 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:57,508 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 01:30:57,509 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:30:57,511 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:30:57,512 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:30:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 120 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:30:57,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:30:58,016 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:30:58,412 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:30:58,413 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:30:58,415 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:30:58,416 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:30:58,418 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:04,559 WARN L193 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 37 DAG size of output: 20 [2020-07-21 01:31:04,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993332497] [2020-07-21 01:31:04,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:31:04,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 01:31:04,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298760978] [2020-07-21 01:31:04,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 01:31:04,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:04,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 01:31:04,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:31:04,569 INFO L87 Difference]: Start difference. First operand 1504 states and 1777 transitions. Second operand 9 states. [2020-07-21 01:31:08,634 WARN L193 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-07-21 01:31:48,392 WARN L193 SmtUtils]: Spent 38.13 s on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-07-21 01:31:49,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:49,845 INFO L93 Difference]: Finished difference Result 3982 states and 4967 transitions. [2020-07-21 01:31:49,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 01:31:49,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 268 [2020-07-21 01:31:49,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:49,862 INFO L225 Difference]: With dead ends: 3982 [2020-07-21 01:31:49,862 INFO L226 Difference]: Without dead ends: 2600 [2020-07-21 01:31:49,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 439 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 63.6s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-07-21 01:31:49,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2020-07-21 01:31:49,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2521. [2020-07-21 01:31:49,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2521 states. [2020-07-21 01:31:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3059 transitions. [2020-07-21 01:31:49,961 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3059 transitions. Word has length 268 [2020-07-21 01:31:49,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:49,961 INFO L479 AbstractCegarLoop]: Abstraction has 2521 states and 3059 transitions. [2020-07-21 01:31:49,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 01:31:49,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3059 transitions. [2020-07-21 01:31:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-07-21 01:31:49,972 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:31:49,973 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:31:50,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:50,188 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:31:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:31:50,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1994852443, now seen corresponding path program 1 times [2020-07-21 01:31:50,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:31:50,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136055850] [2020-07-21 01:31:50,191 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 01:31:50,388 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:31:50,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:31:50,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:31:50,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:31:50,500 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-21 01:31:50,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:31:50,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136055850] [2020-07-21 01:31:50,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:31:50,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:31:50,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275922626] [2020-07-21 01:31:50,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:31:50,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:50,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:31:50,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:31:50,503 INFO L87 Difference]: Start difference. First operand 2521 states and 3059 transitions. Second operand 3 states. [2020-07-21 01:31:51,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:31:51,663 INFO L93 Difference]: Finished difference Result 4893 states and 5970 transitions. [2020-07-21 01:31:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:31:51,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-07-21 01:31:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:31:51,680 INFO L225 Difference]: With dead ends: 4893 [2020-07-21 01:31:51,680 INFO L226 Difference]: Without dead ends: 2521 [2020-07-21 01:31:51,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 302 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 01:31:51,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2020-07-21 01:31:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2084. [2020-07-21 01:31:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2084 states. [2020-07-21 01:31:51,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2456 transitions. [2020-07-21 01:31:51,765 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2456 transitions. Word has length 304 [2020-07-21 01:31:51,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:31:51,766 INFO L479 AbstractCegarLoop]: Abstraction has 2084 states and 2456 transitions. [2020-07-21 01:31:51,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:31:51,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2456 transitions. [2020-07-21 01:31:51,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-07-21 01:31:51,777 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:31:51,777 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:31:51,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:31:51,993 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:31:51,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:31:51,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1344701585, now seen corresponding path program 1 times [2020-07-21 01:31:51,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:31:51,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281924217] [2020-07-21 01:31:51,995 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 01:31:52,172 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:31:52,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:31:52,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 01:31:52,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:31:52,214 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:31:52,221 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:52,225 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:31:52,227 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:52,230 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:52,232 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:31:52,235 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:31:52,237 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:32:04,580 WARN L193 SmtUtils]: Spent 12.29 s on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-07-21 01:32:04,616 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:32:04,757 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 01:32:04,758 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:04,759 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:04,815 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:32:05,076 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 348 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-21 01:32:05,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:32:05,239 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2020-07-21 01:32:05,285 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:05,286 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,287 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,288 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:05,334 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,335 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:05,545 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,547 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,547 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,549 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,550 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,551 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,553 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,554 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,555 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:32:05,555 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:05,556 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:05,556 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,557 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,558 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,559 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:32:05,560 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:05,561 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:32:05,562 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 01:32:05,564 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,566 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,566 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:05,567 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:05,569 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:05,570 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,572 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,575 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:05,575 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:05,576 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,577 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:05,578 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:32:05,579 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:05,581 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:32:05,582 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:32:05,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281924217] [2020-07-21 01:32:05,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:32:05,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 01:32:05,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586311940] [2020-07-21 01:32:05,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:32:05,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:32:05,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:32:05,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:32:05,826 INFO L87 Difference]: Start difference. First operand 2084 states and 2456 transitions. Second operand 8 states. [2020-07-21 01:32:07,221 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2020-07-21 01:32:49,017 WARN L193 SmtUtils]: Spent 15.04 s on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-07-21 01:33:01,056 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-21 01:33:12,213 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2020-07-21 01:33:33,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:33,935 INFO L93 Difference]: Finished difference Result 4774 states and 5756 transitions. [2020-07-21 01:33:33,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-21 01:33:33,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 359 [2020-07-21 01:33:33,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:33,955 INFO L225 Difference]: With dead ends: 4774 [2020-07-21 01:33:33,955 INFO L226 Difference]: Without dead ends: 2839 [2020-07-21 01:33:33,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 587 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-07-21 01:33:33,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2020-07-21 01:33:34,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2678. [2020-07-21 01:33:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2678 states. [2020-07-21 01:33:34,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 3114 transitions. [2020-07-21 01:33:34,036 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 3114 transitions. Word has length 359 [2020-07-21 01:33:34,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:34,036 INFO L479 AbstractCegarLoop]: Abstraction has 2678 states and 3114 transitions. [2020-07-21 01:33:34,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:33:34,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 3114 transitions. [2020-07-21 01:33:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-07-21 01:33:34,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:33:34,048 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:33:34,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:34,249 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:33:34,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:33:34,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1554197730, now seen corresponding path program 1 times [2020-07-21 01:33:34,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:33:34,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272309036] [2020-07-21 01:33:34,251 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:34,492 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:33:34,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:33:34,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:33:34,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:33:34,596 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-07-21 01:33:34,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:33:34,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272309036] [2020-07-21 01:33:34,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:33:34,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:33:34,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335607881] [2020-07-21 01:33:34,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:33:34,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:33:34,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:33:34,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:33:34,599 INFO L87 Difference]: Start difference. First operand 2678 states and 3114 transitions. Second operand 3 states. [2020-07-21 01:33:35,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:33:35,945 INFO L93 Difference]: Finished difference Result 5493 states and 6402 transitions. [2020-07-21 01:33:35,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:33:35,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 378 [2020-07-21 01:33:35,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:33:35,950 INFO L225 Difference]: With dead ends: 5493 [2020-07-21 01:33:35,950 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:33:35,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 376 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 01:33:35,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:33:35,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:33:35,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:33:35,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:33:35,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 378 [2020-07-21 01:33:35,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:33:35,962 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:33:35,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:33:35,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:33:35,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:33:36,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:33:36,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:33:36,791 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 125 [2020-07-21 01:33:36,999 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 30 [2020-07-21 01:33:38,272 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 184 DAG size of output: 54 [2020-07-21 01:33:38,899 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 37 [2020-07-21 01:33:39,481 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 37 [2020-07-21 01:33:39,486 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:33:39,487 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (or (<= 10 |old(~a19~0)|) (< ~a19~0 10)) (<= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|) (or (<= 9 ~a19~0) (< |old(~a19~0)| 9))) [2020-07-21 01:33:39,487 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:33:39,487 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 01:33:39,487 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,487 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,487 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,487 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 01:33:39,488 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 01:33:39,489 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 01:33:39,489 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 01:33:39,489 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 01:33:39,489 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,489 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,489 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,489 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,489 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 01:33:39,490 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 01:33:39,491 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 01:33:39,491 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 01:33:39,491 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 01:33:39,491 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 130) no Hoare annotation was computed. [2020-07-21 01:33:39,491 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 01:33:39,491 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,491 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,491 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,492 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,492 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,492 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 01:33:39,492 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:33:39,492 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 01:33:39,492 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 01:33:39,492 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 01:33:39,492 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 01:33:39,493 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 01:33:39,493 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 01:33:39,493 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 01:33:39,493 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 01:33:39,493 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,493 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,493 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,493 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,493 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,494 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 01:33:39,494 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 01:33:39,494 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 01:33:39,494 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 01:33:39,494 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 01:33:39,494 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 01:33:39,494 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 01:33:39,494 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 01:33:39,494 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 01:33:39,495 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 01:33:39,495 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 01:33:39,495 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 01:33:39,495 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 01:33:39,495 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,495 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,495 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,495 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,496 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,496 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 01:33:39,496 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 01:33:39,496 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 01:33:39,496 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 01:33:39,496 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 01:33:39,496 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 01:33:39,497 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 01:33:39,497 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 01:33:39,497 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 01:33:39,497 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,497 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,497 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,497 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,497 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,498 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,498 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,498 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 01:33:39,498 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 01:33:39,498 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 01:33:39,498 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 01:33:39,498 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 01:33:39,498 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 01:33:39,498 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 01:33:39,499 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 01:33:39,499 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 01:33:39,499 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 01:33:39,499 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 01:33:39,499 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 01:33:39,499 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 01:33:39,499 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,500 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,500 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,500 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,500 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 01:33:39,500 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,500 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,500 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 01:33:39,500 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 01:33:39,501 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 01:33:39,501 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:33:39,501 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 01:33:39,501 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 01:33:39,501 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 01:33:39,501 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 01:33:39,501 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 01:33:39,501 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 01:33:39,502 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 01:33:39,502 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 01:33:39,502 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 01:33:39,502 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,502 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,502 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,502 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,502 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,502 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,503 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 01:33:39,503 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 01:33:39,503 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 01:33:39,503 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 01:33:39,503 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 01:33:39,503 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 01:33:39,503 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 01:33:39,503 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 01:33:39,503 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 01:33:39,504 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 01:33:39,504 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 01:33:39,504 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse5 (<= |old(~a10~0)| ~a10~0)) (.cse0 (= ~a19~0 |old(~a19~0)|)) (.cse1 (= ~a1~0 |old(~a1~0)|))) (let ((.cse2 (not (= 0 ~a12~0))) (.cse3 (not (= 14 ~a4~0))) (.cse4 (not (<= |old(~a19~0)| 9))) (.cse6 (and (<= ~a10~0 |old(~a10~0)|) .cse5 .cse0 .cse1))) (and (or (and (<= ~a10~0 2) .cse0 (<= 2 ~a10~0) .cse1) .cse2 .cse3 .cse4 (not (<= 2 |old(~a10~0)|)) (not (<= |old(~a10~0)| 2))) (or .cse2 (not (<= 9 |old(~a19~0)|)) (and .cse5 .cse0 (< ~a10~0 4) .cse1) .cse3 (not (< |old(~a10~0)| 4)) .cse4) (or (not (<= |old(~a19~0)| 6)) .cse2 .cse3 .cse6) (or .cse2 .cse3 .cse6 (not (<= |old(~a10~0)| 1))) (or (not (<= 4 |old(~a10~0)|)) .cse2 .cse3 .cse4 .cse6)))) [2020-07-21 01:33:39,504 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 01:33:39,504 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 01:33:39,504 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 01:33:39,505 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 01:33:39,506 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 01:33:39,506 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 01:33:39,506 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 01:33:39,506 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 01:33:39,506 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 01:33:39,506 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 01:33:39,506 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 01:33:39,506 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 01:33:39,506 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 01:33:39,507 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,507 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,507 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,507 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,507 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,507 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,508 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 01:33:39,508 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 01:33:39,508 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 01:33:39,508 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,509 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,510 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,510 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,510 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,510 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:33:39,510 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 01:33:39,510 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 01:33:39,510 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 01:33:39,510 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 01:33:39,511 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 01:33:39,511 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 01:33:39,511 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 01:33:39,511 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 01:33:39,511 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 01:33:39,511 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 01:33:39,511 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 01:33:39,511 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 01:33:39,511 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:33:39,512 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (= 23 ~a1~0)) [2020-07-21 01:33:39,512 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:33:39,512 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:33:39,512 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 01:33:39,512 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:33:39,512 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (and .cse0 (<= 9 ~a19~0)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (and .cse0 (<= ~a10~0 2)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-07-21 01:33:39,512 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 01:33:39,512 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 01:33:39,512 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (<= ~a10~0 1) (and .cse0 (<= 9 ~a19~0)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (and .cse0 (<= ~a10~0 2)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-07-21 01:33:39,512 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:33:39,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:33:39 BoogieIcfgContainer [2020-07-21 01:33:39,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:33:39,542 INFO L168 Benchmark]: Toolchain (without parser) took 190750.96 ms. Allocated memory was 137.9 MB in the beginning and 483.9 MB in the end (delta: 346.0 MB). Free memory was 100.9 MB in the beginning and 284.9 MB in the end (delta: -184.1 MB). Peak memory consumption was 392.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:33:39,545 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 01:33:39,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.48 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.4 MB in the beginning and 170.3 MB in the end (delta: -69.9 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:33:39,548 INFO L168 Benchmark]: Boogie Preprocessor took 141.84 ms. Allocated memory is still 203.9 MB. Free memory was 169.6 MB in the beginning and 165.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:33:39,550 INFO L168 Benchmark]: RCFGBuilder took 1354.86 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 165.4 MB in the beginning and 181.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:33:39,552 INFO L168 Benchmark]: TraceAbstraction took 188446.62 ms. Allocated memory was 235.9 MB in the beginning and 483.9 MB in the end (delta: 248.0 MB). Free memory was 180.0 MB in the beginning and 284.9 MB in the end (delta: -104.9 MB). Peak memory consumption was 373.3 MB. Max. memory is 7.1 GB. [2020-07-21 01:33:39,562 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 800.48 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.4 MB in the beginning and 170.3 MB in the end (delta: -69.9 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.84 ms. Allocated memory is still 203.9 MB. Free memory was 169.6 MB in the beginning and 165.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1354.86 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 165.4 MB in the beginning and 181.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 188446.62 ms. Allocated memory was 235.9 MB in the beginning and 483.9 MB in the end (delta: 248.0 MB). Free memory was 180.0 MB in the beginning and 284.9 MB in the end (delta: -104.9 MB). Peak memory consumption was 373.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 130]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((a10 <= 1 || (a19 <= 9 && 9 <= a19)) || a19 <= 6) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || (a19 <= 9 && 4 <= a10)) || !(9 <= \old(a19))) || !(0 == a12)) || (a19 <= 9 && a10 <= 2)) || !(14 == a4)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 185.0s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 142.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 820 SDtfs, 3326 SDslu, 351 SDs, 0 SdLazy, 7762 SolverSat, 1352 SolverUnsat, 22 SolverUnknown, 0 SolverNotchecked, 79.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3606 GetRequests, 3517 SyntacticMatches, 14 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 92.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2678occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 1166 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 113 PreInvPairs, 157 NumberOfFragments, 337 HoareAnnotationTreeSize, 113 FomulaSimplifications, 6793 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 5341 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 37.4s InterpolantComputationTime, 2381 NumberOfCodeBlocks, 2130 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 3142 ConstructedInterpolants, 12 QuantifiedInterpolants, 2897514 SizeOfPredicates, 22 NumberOfNonLiveVariables, 3832 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 2131/2222 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...