/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 DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:04:30,178 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 22:04:30,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:04:30,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:04:30,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:04:30,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:04:30,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:04:30,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:04:30,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:04:30,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:04:30,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:04:30,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:04:30,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:04:30,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:04:30,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:04:30,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:04:30,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:04:30,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:04:30,232 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 [2020-07-20 22:04:30,248 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:04:30,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:04:30,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:04:30,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:04:30,253 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:04:30,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:04:30,254 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:04:30,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:04:30,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:04:30,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:04:30,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:04:30,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:04:30,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:04:30,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:04:30,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:04:30,258 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:04:30,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:04:30,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:04:30,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:04:30,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:04:30,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:04:30,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:04:30,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:04:30,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:04:30,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:04:30,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:04:30,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:30,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:04:30,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:04:30,262 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 -> DAGSIZE 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 [2020-07-20 22:04:30,546 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:04:30,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:04:30,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:04:30,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:04:30,573 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:04:30,574 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-20 22:04:30,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93295209b/9167c391717a445da270b880df4bf62e/FLAGcb20de5d1 [2020-07-20 22:04:31,265 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:04:31,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-20 22:04:31,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93295209b/9167c391717a445da270b880df4bf62e/FLAGcb20de5d1 [2020-07-20 22:04:31,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93295209b/9167c391717a445da270b880df4bf62e [2020-07-20 22:04:31,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:04:31,535 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:04:31,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:04:31,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:04:31,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:04:31,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:04:31" (1/1) ... [2020-07-20 22:04:31,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd08649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:31, skipping insertion in model container [2020-07-20 22:04:31,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:04:31" (1/1) ... [2020-07-20 22:04:31,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:04:31,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:04:32,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:04:32,179 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:04:32,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:04:32,280 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:04:32,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32 WrapperNode [2020-07-20 22:04:32,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:04:32,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:04:32,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:04:32,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:04:32,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32" (1/1) ... [2020-07-20 22:04:32,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32" (1/1) ... [2020-07-20 22:04:32,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32" (1/1) ... [2020-07-20 22:04:32,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32" (1/1) ... [2020-07-20 22:04:32,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32" (1/1) ... [2020-07-20 22:04:32,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32" (1/1) ... [2020-07-20 22:04:32,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32" (1/1) ... [2020-07-20 22:04:32,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:04:32,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:04:32,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:04:32,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:04:32,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32" (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 [2020-07-20 22:04:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:04:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:04:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:04:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:04:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:04:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:04:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:04:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:04:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:04:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:04:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:04:33,659 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:04:33,660 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:04:33,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:04:33 BoogieIcfgContainer [2020-07-20 22:04:33,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:04:33,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:04:33,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:04:33,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:04:33,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:04:31" (1/3) ... [2020-07-20 22:04:33,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:04:33, skipping insertion in model container [2020-07-20 22:04:33,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:32" (2/3) ... [2020-07-20 22:04:33,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddccfad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:04:33, skipping insertion in model container [2020-07-20 22:04:33,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:04:33" (3/3) ... [2020-07-20 22:04:33,675 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-07-20 22:04:33,686 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:04:33,694 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:04:33,709 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:04:33,736 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:04:33,737 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:04:33,737 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:04:33,737 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:04:33,737 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:04:33,738 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:04:33,738 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:04:33,738 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:04:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 22:04:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-20 22:04:33,780 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:33,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:33,782 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:33,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:33,789 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2020-07-20 22:04:33,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:33,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256160405] [2020-07-20 22:04:33,802 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 [2020-07-20 22:04:34,047 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:34,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:34,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:04:34,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:34,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:34,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:34,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256160405] [2020-07-20 22:04:34,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:34,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:34,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568732161] [2020-07-20 22:04:34,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:34,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:34,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:34,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:34,298 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 22:04:35,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:35,352 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 22:04:35,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:35,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-20 22:04:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:35,373 INFO L225 Difference]: With dead ends: 615 [2020-07-20 22:04:35,374 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 22:04:35,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 22:04:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 22:04:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 22:04:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 22:04:35,468 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 142 [2020-07-20 22:04:35,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:35,470 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 22:04:35,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:35,470 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 22:04:35,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 22:04:35,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:35,489 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:35,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:35,704 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:35,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2119639181, now seen corresponding path program 1 times [2020-07-20 22:04:35,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:35,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037520569] [2020-07-20 22:04:35,706 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 [2020-07-20 22:04:35,881 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:35,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:35,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:35,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:35,943 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:35,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:35,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037520569] [2020-07-20 22:04:35,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:35,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:35,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201842207] [2020-07-20 22:04:35,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:35,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:35,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:35,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:35,947 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-20 22:04:36,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:36,584 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-20 22:04:36,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:36,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-07-20 22:04:36,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:36,591 INFO L225 Difference]: With dead ends: 919 [2020-07-20 22:04:36,591 INFO L226 Difference]: Without dead ends: 608 [2020-07-20 22:04:36,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:36,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-20 22:04:36,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-20 22:04:36,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-20 22:04:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-20 22:04:36,623 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 157 [2020-07-20 22:04:36,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:36,624 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-20 22:04:36,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:36,625 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-20 22:04:36,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 22:04:36,628 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:36,628 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:36,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:36,842 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:36,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:36,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1005880998, now seen corresponding path program 1 times [2020-07-20 22:04:36,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:36,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404815474] [2020-07-20 22:04:36,845 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 [2020-07-20 22:04:36,963 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:36,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:36,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:36,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:37,017 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:37,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:37,018 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404815474] [2020-07-20 22:04:37,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:37,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:37,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169413532] [2020-07-20 22:04:37,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:37,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:37,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:37,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:37,021 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-20 22:04:37,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:37,764 INFO L93 Difference]: Finished difference Result 1359 states and 1917 transitions. [2020-07-20 22:04:37,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:37,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-07-20 22:04:37,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:37,770 INFO L225 Difference]: With dead ends: 1359 [2020-07-20 22:04:37,770 INFO L226 Difference]: Without dead ends: 903 [2020-07-20 22:04:37,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:37,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-07-20 22:04:37,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 902. [2020-07-20 22:04:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2020-07-20 22:04:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1159 transitions. [2020-07-20 22:04:37,841 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1159 transitions. Word has length 164 [2020-07-20 22:04:37,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:37,842 INFO L479 AbstractCegarLoop]: Abstraction has 902 states and 1159 transitions. [2020-07-20 22:04:37,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:37,842 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1159 transitions. [2020-07-20 22:04:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-20 22:04:37,847 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:37,847 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:38,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:38,062 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:38,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:38,063 INFO L82 PathProgramCache]: Analyzing trace with hash -315093218, now seen corresponding path program 1 times [2020-07-20 22:04:38,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:38,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917177050] [2020-07-20 22:04:38,064 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 [2020-07-20 22:04:38,180 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:38,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:38,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:38,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:38,239 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:38,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:38,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917177050] [2020-07-20 22:04:38,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:38,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:38,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185462343] [2020-07-20 22:04:38,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:38,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:38,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:38,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:38,243 INFO L87 Difference]: Start difference. First operand 902 states and 1159 transitions. Second operand 3 states. [2020-07-20 22:04:38,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:38,900 INFO L93 Difference]: Finished difference Result 2236 states and 2978 transitions. [2020-07-20 22:04:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:38,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-07-20 22:04:38,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:38,912 INFO L225 Difference]: With dead ends: 2236 [2020-07-20 22:04:38,912 INFO L226 Difference]: Without dead ends: 1340 [2020-07-20 22:04:38,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:38,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2020-07-20 22:04:38,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1194. [2020-07-20 22:04:38,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-07-20 22:04:38,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1490 transitions. [2020-07-20 22:04:38,983 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1490 transitions. Word has length 168 [2020-07-20 22:04:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:38,985 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1490 transitions. [2020-07-20 22:04:38,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1490 transitions. [2020-07-20 22:04:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-20 22:04:38,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:38,994 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:39,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:39,209 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:39,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:39,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1336045319, now seen corresponding path program 1 times [2020-07-20 22:04:39,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:39,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069204363] [2020-07-20 22:04:39,211 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 [2020-07-20 22:04:39,320 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:39,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:39,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:39,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:39,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:39,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069204363] [2020-07-20 22:04:39,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:39,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:04:39,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927055178] [2020-07-20 22:04:39,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:04:39,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:39,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:04:39,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:04:39,488 INFO L87 Difference]: Start difference. First operand 1194 states and 1490 transitions. Second operand 7 states. [2020-07-20 22:04:41,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:41,243 INFO L93 Difference]: Finished difference Result 3570 states and 4728 transitions. [2020-07-20 22:04:41,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:04:41,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-07-20 22:04:41,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:41,260 INFO L225 Difference]: With dead ends: 3570 [2020-07-20 22:04:41,261 INFO L226 Difference]: Without dead ends: 2382 [2020-07-20 22:04:41,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:41,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2020-07-20 22:04:41,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2236. [2020-07-20 22:04:41,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2236 states. [2020-07-20 22:04:41,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2800 transitions. [2020-07-20 22:04:41,353 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2800 transitions. Word has length 181 [2020-07-20 22:04:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:41,354 INFO L479 AbstractCegarLoop]: Abstraction has 2236 states and 2800 transitions. [2020-07-20 22:04:41,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:04:41,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2800 transitions. [2020-07-20 22:04:41,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-20 22:04:41,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:41,368 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:41,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:41,584 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:41,584 INFO L82 PathProgramCache]: Analyzing trace with hash 441214513, now seen corresponding path program 1 times [2020-07-20 22:04:41,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:41,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865201990] [2020-07-20 22:04:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-20 22:04:41,723 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:41,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:41,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:41,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:41,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:41,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865201990] [2020-07-20 22:04:41,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:41,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:04:41,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863249929] [2020-07-20 22:04:41,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:04:41,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:41,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:04:41,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:04:41,927 INFO L87 Difference]: Start difference. First operand 2236 states and 2800 transitions. Second operand 7 states. [2020-07-20 22:04:42,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:42,993 INFO L93 Difference]: Finished difference Result 5225 states and 6791 transitions. [2020-07-20 22:04:42,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:04:42,995 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-07-20 22:04:42,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:43,012 INFO L225 Difference]: With dead ends: 5225 [2020-07-20 22:04:43,012 INFO L226 Difference]: Without dead ends: 2999 [2020-07-20 22:04:43,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:43,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2020-07-20 22:04:43,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2270. [2020-07-20 22:04:43,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2020-07-20 22:04:43,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2867 transitions. [2020-07-20 22:04:43,096 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2867 transitions. Word has length 193 [2020-07-20 22:04:43,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:43,097 INFO L479 AbstractCegarLoop]: Abstraction has 2270 states and 2867 transitions. [2020-07-20 22:04:43,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:04:43,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2867 transitions. [2020-07-20 22:04:43,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-20 22:04:43,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:43,107 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:43,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:43,321 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:43,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:43,322 INFO L82 PathProgramCache]: Analyzing trace with hash 2102913996, now seen corresponding path program 1 times [2020-07-20 22:04:43,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:43,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633558413] [2020-07-20 22:04:43,323 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 [2020-07-20 22:04:43,459 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:43,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:43,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:43,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-20 22:04:43,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:43,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633558413] [2020-07-20 22:04:43,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:43,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:43,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15092018] [2020-07-20 22:04:43,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:43,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:43,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:43,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:43,538 INFO L87 Difference]: Start difference. First operand 2270 states and 2867 transitions. Second operand 3 states. [2020-07-20 22:04:44,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:44,137 INFO L93 Difference]: Finished difference Result 4100 states and 5144 transitions. [2020-07-20 22:04:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:44,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-07-20 22:04:44,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:44,150 INFO L225 Difference]: With dead ends: 4100 [2020-07-20 22:04:44,150 INFO L226 Difference]: Without dead ends: 2270 [2020-07-20 22:04:44,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:44,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2020-07-20 22:04:44,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2124. [2020-07-20 22:04:44,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2124 states. [2020-07-20 22:04:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2561 transitions. [2020-07-20 22:04:44,231 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2561 transitions. Word has length 201 [2020-07-20 22:04:44,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:44,231 INFO L479 AbstractCegarLoop]: Abstraction has 2124 states and 2561 transitions. [2020-07-20 22:04:44,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2561 transitions. [2020-07-20 22:04:44,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-20 22:04:44,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:44,241 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:44,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:44,456 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:44,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:44,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1557426684, now seen corresponding path program 1 times [2020-07-20 22:04:44,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:44,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352845174] [2020-07-20 22:04:44,457 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 [2020-07-20 22:04:44,602 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:44,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:44,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:04:44,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:44,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:04:44,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352845174] [2020-07-20 22:04:44,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:44,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:04:44,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68388522] [2020-07-20 22:04:44,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:04:44,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:44,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:04:44,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:44,814 INFO L87 Difference]: Start difference. First operand 2124 states and 2561 transitions. Second operand 6 states. [2020-07-20 22:04:45,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:45,600 INFO L93 Difference]: Finished difference Result 4272 states and 5278 transitions. [2020-07-20 22:04:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:04:45,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-07-20 22:04:45,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:45,613 INFO L225 Difference]: With dead ends: 4272 [2020-07-20 22:04:45,613 INFO L226 Difference]: Without dead ends: 2158 [2020-07-20 22:04:45,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:45,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2020-07-20 22:04:45,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2128. [2020-07-20 22:04:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2020-07-20 22:04:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2455 transitions. [2020-07-20 22:04:45,682 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2455 transitions. Word has length 221 [2020-07-20 22:04:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:45,683 INFO L479 AbstractCegarLoop]: Abstraction has 2128 states and 2455 transitions. [2020-07-20 22:04:45,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:04:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2455 transitions. [2020-07-20 22:04:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-20 22:04:45,691 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:45,692 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:45,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:45,905 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:45,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:45,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1374694561, now seen corresponding path program 1 times [2020-07-20 22:04:45,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:45,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591184755] [2020-07-20 22:04:45,907 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 [2020-07-20 22:04:46,060 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:46,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:46,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:04:46,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-20 22:04:46,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:46,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591184755] [2020-07-20 22:04:46,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:46,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:04:46,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149242718] [2020-07-20 22:04:46,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:04:46,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:46,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:04:46,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:04:46,131 INFO L87 Difference]: Start difference. First operand 2128 states and 2455 transitions. Second operand 5 states. [2020-07-20 22:04:46,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:46,682 INFO L93 Difference]: Finished difference Result 4117 states and 4884 transitions. [2020-07-20 22:04:46,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:04:46,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-07-20 22:04:46,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:46,697 INFO L225 Difference]: With dead ends: 4117 [2020-07-20 22:04:46,697 INFO L226 Difference]: Without dead ends: 1999 [2020-07-20 22:04:46,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:46,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2020-07-20 22:04:46,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1961. [2020-07-20 22:04:46,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1961 states. [2020-07-20 22:04:46,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2198 transitions. [2020-07-20 22:04:46,768 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2198 transitions. Word has length 235 [2020-07-20 22:04:46,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:46,769 INFO L479 AbstractCegarLoop]: Abstraction has 1961 states and 2198 transitions. [2020-07-20 22:04:46,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:04:46,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2198 transitions. [2020-07-20 22:04:46,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-07-20 22:04:46,777 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:46,779 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:46,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:46,995 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:46,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:46,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1537639004, now seen corresponding path program 1 times [2020-07-20 22:04:46,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:46,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34660063] [2020-07-20 22:04:46,997 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 [2020-07-20 22:04:47,156 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:47,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:47,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:47,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-20 22:04:47,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 101 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 22:04:47,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34660063] [2020-07-20 22:04:47,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:47,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:04:47,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463196909] [2020-07-20 22:04:47,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:04:47,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:47,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:04:47,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:47,299 INFO L87 Difference]: Start difference. First operand 1961 states and 2198 transitions. Second operand 6 states. [2020-07-20 22:04:48,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:48,158 INFO L93 Difference]: Finished difference Result 3484 states and 3879 transitions. [2020-07-20 22:04:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:04:48,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 243 [2020-07-20 22:04:48,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:48,167 INFO L225 Difference]: With dead ends: 3484 [2020-07-20 22:04:48,168 INFO L226 Difference]: Without dead ends: 1807 [2020-07-20 22:04:48,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 482 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:48,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-20 22:04:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1803. [2020-07-20 22:04:48,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2020-07-20 22:04:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 1954 transitions. [2020-07-20 22:04:48,210 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 1954 transitions. Word has length 243 [2020-07-20 22:04:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:48,213 INFO L479 AbstractCegarLoop]: Abstraction has 1803 states and 1954 transitions. [2020-07-20 22:04:48,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:04:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 1954 transitions. [2020-07-20 22:04:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-20 22:04:48,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:48,221 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:48,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:48,435 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:48,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:48,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1660093140, now seen corresponding path program 1 times [2020-07-20 22:04:48,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:48,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987006045] [2020-07-20 22:04:48,437 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 [2020-07-20 22:04:48,569 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:48,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:48,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:48,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:48,643 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 22:04:48,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 22:04:48,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987006045] [2020-07-20 22:04:48,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:48,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:04:48,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035428357] [2020-07-20 22:04:48,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:04:48,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:48,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:04:48,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:48,759 INFO L87 Difference]: Start difference. First operand 1803 states and 1954 transitions. Second operand 6 states. [2020-07-20 22:04:49,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:49,662 INFO L93 Difference]: Finished difference Result 4188 states and 4550 transitions. [2020-07-20 22:04:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:04:49,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 247 [2020-07-20 22:04:49,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:49,670 INFO L225 Difference]: With dead ends: 4188 [2020-07-20 22:04:49,671 INFO L226 Difference]: Without dead ends: 1807 [2020-07-20 22:04:49,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:49,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-20 22:04:49,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1363. [2020-07-20 22:04:49,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2020-07-20 22:04:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1441 transitions. [2020-07-20 22:04:49,714 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1441 transitions. Word has length 247 [2020-07-20 22:04:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:49,715 INFO L479 AbstractCegarLoop]: Abstraction has 1363 states and 1441 transitions. [2020-07-20 22:04:49,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:04:49,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1441 transitions. [2020-07-20 22:04:49,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-20 22:04:49,722 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:49,722 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:49,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:49,938 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:49,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:49,939 INFO L82 PathProgramCache]: Analyzing trace with hash 246093775, now seen corresponding path program 1 times [2020-07-20 22:04:49,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:49,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786445964] [2020-07-20 22:04:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:50,083 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:50,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:50,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:04:50,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:50,150 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-20 22:04:50,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:04:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-20 22:04:50,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786445964] [2020-07-20 22:04:50,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:04:50,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:04:50,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256529616] [2020-07-20 22:04:50,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:04:50,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:50,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:04:50,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:04:50,256 INFO L87 Difference]: Start difference. First operand 1363 states and 1441 transitions. Second operand 6 states. [2020-07-20 22:04:51,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:51,163 INFO L93 Difference]: Finished difference Result 2737 states and 2911 transitions. [2020-07-20 22:04:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:04:51,164 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 282 [2020-07-20 22:04:51,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:51,169 INFO L225 Difference]: With dead ends: 2737 [2020-07-20 22:04:51,169 INFO L226 Difference]: Without dead ends: 1380 [2020-07-20 22:04:51,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:04:51,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-07-20 22:04:51,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1367. [2020-07-20 22:04:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-20 22:04:51,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1429 transitions. [2020-07-20 22:04:51,200 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1429 transitions. Word has length 282 [2020-07-20 22:04:51,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:51,200 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1429 transitions. [2020-07-20 22:04:51,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:04:51,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1429 transitions. [2020-07-20 22:04:51,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-07-20 22:04:51,207 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:51,208 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:04:51,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:51,421 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:51,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:51,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1557581639, now seen corresponding path program 1 times [2020-07-20 22:04:51,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:51,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909054880] [2020-07-20 22:04:51,422 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:51,582 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:51,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:51,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:04:51,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:04:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-07-20 22:04:51,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:04:51,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909054880] [2020-07-20 22:04:51,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:04:51,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:04:51,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276515031] [2020-07-20 22:04:51,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:04:51,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:04:51,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:04:51,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:51,680 INFO L87 Difference]: Start difference. First operand 1367 states and 1429 transitions. Second operand 3 states. [2020-07-20 22:04:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:04:52,279 INFO L93 Difference]: Finished difference Result 3302 states and 3466 transitions. [2020-07-20 22:04:52,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:04:52,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2020-07-20 22:04:52,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:04:52,281 INFO L225 Difference]: With dead ends: 3302 [2020-07-20 22:04:52,281 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:04:52,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:04:52,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:04:52,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:04:52,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:04:52,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:04:52,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2020-07-20 22:04:52,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:04:52,288 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:04:52,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:04:52,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:04:52,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:04:52,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:52,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:04:54,004 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2020-07-20 22:04:54,339 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2020-07-20 22:04:54,691 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2020-07-20 22:04:54,696 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:04:54,696 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-20 22:04:54,697 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:04:54,697 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,697 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,697 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,697 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,698 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,698 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 22:04:54,698 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 22:04:54,698 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 22:04:54,698 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 22:04:54,698 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 22:04:54,699 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 22:04:54,699 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 22:04:54,699 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 22:04:54,699 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 22:04:54,699 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 22:04:54,699 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:04:54,700 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:04:54,700 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 22:04:54,700 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,700 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,700 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,700 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,700 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 22:04:54,700 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,700 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 22:04:54,701 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 22:04:54,701 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 22:04:54,701 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 22:04:54,701 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 22:04:54,701 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 22:04:54,701 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 22:04:54,701 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:04:54,701 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:04:54,702 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 22:04:54,702 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 22:04:54,702 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 22:04:54,702 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:04:54,702 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:04:54,702 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 22:04:54,702 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,702 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,702 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,703 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,703 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,703 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2020-07-20 22:04:54,703 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:04:54,703 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 22:04:54,703 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:04:54,703 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 22:04:54,704 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 22:04:54,704 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 22:04:54,704 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 22:04:54,704 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 22:04:54,704 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 22:04:54,704 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 22:04:54,704 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 22:04:54,704 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,704 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 22:04:54,705 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 22:04:54,706 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 22:04:54,706 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 22:04:54,706 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 22:04:54,706 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 22:04:54,706 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 22:04:54,706 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,706 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,706 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,706 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 22:04:54,707 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,708 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:04:54,709 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,709 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:04:54,709 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:04:54,709 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:04:54,709 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,709 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,709 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 22:04:54,709 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 22:04:54,709 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,710 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 22:04:54,711 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 22:04:54,712 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 22:04:54,713 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 22:04:54,713 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 22:04:54,713 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 22:04:54,713 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 22:04:54,713 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 22:04:54,713 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,713 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,713 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,713 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a17~0 |old(~a17~0)|)) (.cse17 (<= ~a28~0 9)) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0))) (let ((.cse3 (and .cse8 .cse17 .cse11 .cse12)) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse14 (not (<= |old(~a28~0)| 8))) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse9 (= 1 ~a11~0)) (.cse13 (not (= 1 |old(~a11~0)|))) (.cse6 (not (<= |old(~a28~0)| 10))) (.cse16 (<= ~a17~0 8)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (<= 10 |old(~a28~0)|))) (.cse19 (<= 8 ~a17~0)) (.cse20 (not (<= 8 |old(~a17~0)|))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse4 (not (= 1 |old(~a19~0)|))) (.cse15 (<= ~a28~0 |old(~a28~0)|)) (.cse18 (not (<= |old(~a28~0)| 7))) (.cse5 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse3) (or .cse4 .cse6 .cse2 .cse7 (and .cse8 .cse9 .cse10 .cse11 .cse12) .cse13) (or .cse14 (and .cse15 .cse16 .cse11 .cse12) .cse1 .cse5) (or .cse4 (not (<= 9 |old(~a28~0)|)) .cse9 .cse0 .cse5 .cse13) (or .cse4 .cse14 (<= ~a28~0 8) .cse5) (or .cse6 .cse1 .cse7 .cse5 (and .cse8 .cse10 .cse11 .cse12)) (or .cse4 (not (<= 11 |old(~a28~0)|)) .cse5 (and .cse8 .cse15 .cse11 .cse12)) (or (and .cse9 .cse16 .cse17 .cse11 .cse12) .cse0 .cse1 .cse5 .cse13) (or .cse4 .cse9 .cse18 .cse5 .cse13) (or .cse4 .cse6 (and .cse16 .cse19 .cse10 .cse11 .cse12) .cse20 .cse7 .cse5) (or .cse18 .cse19 .cse20 .cse1 .cse5) (or .cse4 .cse15 .cse18 .cse5)))) [2020-07-20 22:04:54,713 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 22:04:54,714 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 22:04:54,715 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 22:04:54,716 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 22:04:54,716 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 22:04:54,716 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 22:04:54,716 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 22:04:54,716 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 22:04:54,716 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:04:54,716 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:04:54,716 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 22:04:54,717 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:04:54,718 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 22:04:54,719 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:04:54,719 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 22:04:54,719 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:04:54,719 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:04:54,719 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 22:04:54,719 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 22:04:54,719 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:04:54,719 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-20 22:04:54,719 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:04:54,720 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:04:54,720 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0))) [2020-07-20 22:04:54,720 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (= 1 ~a11~0)) (.cse3 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse2 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 10 ~a28~0) .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= 11 ~a28~0)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a28~0 8) .cse4) (not (<= |old(~a17~0)| 8)))) [2020-07-20 22:04:54,720 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:04:54,720 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:04:54,720 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse5 (= 1 ~a11~0)) (.cse3 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse2 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 10 ~a28~0) .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= 11 ~a28~0)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a28~0 8) .cse4) (not (<= |old(~a17~0)| 8)))) [2020-07-20 22:04:54,720 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 22:04:54,721 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 22:04:54,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:04:54 BoogieIcfgContainer [2020-07-20 22:04:54,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:04:54,744 INFO L168 Benchmark]: Toolchain (without parser) took 23210.71 ms. Allocated memory was 137.9 MB in the beginning and 556.3 MB in the end (delta: 418.4 MB). Free memory was 99.4 MB in the beginning and 159.9 MB in the end (delta: -60.5 MB). Peak memory consumption was 357.8 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:54,745 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 22:04:54,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.43 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 99.0 MB in the beginning and 171.9 MB in the end (delta: -73.0 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:54,746 INFO L168 Benchmark]: Boogie Preprocessor took 124.00 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 167.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:54,747 INFO L168 Benchmark]: RCFGBuilder took 1260.17 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.0 MB in the beginning and 182.6 MB in the end (delta: -15.6 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:54,748 INFO L168 Benchmark]: TraceAbstraction took 21074.36 ms. Allocated memory was 238.0 MB in the beginning and 556.3 MB in the end (delta: 318.2 MB). Free memory was 182.6 MB in the beginning and 159.9 MB in the end (delta: 22.7 MB). Peak memory consumption was 340.9 MB. Max. memory is 7.1 GB. [2020-07-20 22:04:54,751 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 745.43 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 99.0 MB in the beginning and 171.9 MB in the end (delta: -73.0 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.00 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 167.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1260.17 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.0 MB in the beginning and 182.6 MB in the end (delta: -15.6 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21074.36 ms. Allocated memory was 238.0 MB in the beginning and 556.3 MB in the end (delta: 318.2 MB). Free memory was 182.6 MB in the beginning and 159.9 MB in the end (delta: 22.7 MB). Peak memory consumption was 340.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(a19)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || ((a28 <= 9 && a17 <= 7) && a19 <= 0)) || (((1 == a11 && a17 <= 8) && a28 <= 9) && a19 <= 0)) || ((1 == a19 && 1 == a11) && a17 <= 7)) || !(\old(a28) <= 7)) || (((a17 <= 8 && a28 <= 10) && 10 <= a28) && a19 <= 0)) || !(8 <= \old(a17))) || ((1 == a19 && a17 <= 8) && 11 <= a28)) || ((1 == a19 && a17 <= 8) && a28 <= 9)) || ((a17 <= 8 && a28 <= 8) && a19 <= 0)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.7s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1322 SDtfs, 3496 SDslu, 600 SDs, 0 SdLazy, 7871 SolverSat, 1263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4123 GetRequests, 4063 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2270occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 1843 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 139 PreInvPairs, 175 NumberOfFragments, 604 HoareAnnotationTreeSize, 139 FomulaSimplifications, 4120 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3062 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2739 NumberOfCodeBlocks, 2739 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 4087 ConstructedInterpolants, 0 QuantifiedInterpolants, 1709871 SizeOfPredicates, 17 NumberOfNonLiveVariables, 6024 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 1826/1904 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...