/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:22:03,202 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 20:22:03,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 20:22:03,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 20:22:03,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 20:22:03,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 20:22:03,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 20:22:03,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 20:22:03,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 20:22:03,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 20:22:03,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 20:22:03,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 20:22:03,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 20:22:03,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 20:22:03,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 20:22:03,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:22:03,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:22:03,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:22:03,262 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 20:22:03,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:22:03,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:22:03,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:22:03,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:22:03,293 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:22:03,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:22:03,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:22:03,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:22:03,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:22:03,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:22:03,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:22:03,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:22:03,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:22:03,299 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:22:03,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:22:03,300 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:22:03,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:22:03,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:22:03,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:22:03,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:22:03,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:22:03,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:22:03,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:22:03,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:22:03,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:22:03,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:22:03,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:22:03,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:22:03,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:22:03,304 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; [2020-08-18 20:22:03,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:22:03,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:22:03,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:22:03,616 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:22:03,617 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:22:03,618 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-08-18 20:22:03,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e4940edf/63f01ee5489d456f815ce3f262b98235/FLAG0960d3c89 [2020-08-18 20:22:04,264 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:22:04,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-08-18 20:22:04,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e4940edf/63f01ee5489d456f815ce3f262b98235/FLAG0960d3c89 [2020-08-18 20:22:04,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e4940edf/63f01ee5489d456f815ce3f262b98235 [2020-08-18 20:22:04,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:22:04,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:22:04,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:22:04,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:22:04,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:22:04,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:22:04" (1/1) ... [2020-08-18 20:22:04,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:04, skipping insertion in model container [2020-08-18 20:22:04,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:22:04" (1/1) ... [2020-08-18 20:22:04,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:22:04,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:22:05,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:22:05,257 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:22:05,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:22:05,382 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:22:05,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05 WrapperNode [2020-08-18 20:22:05,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:22:05,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:22:05,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:22:05,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:22:05,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05" (1/1) ... [2020-08-18 20:22:05,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05" (1/1) ... [2020-08-18 20:22:05,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05" (1/1) ... [2020-08-18 20:22:05,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05" (1/1) ... [2020-08-18 20:22:05,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05" (1/1) ... [2020-08-18 20:22:05,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05" (1/1) ... [2020-08-18 20:22:05,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05" (1/1) ... [2020-08-18 20:22:05,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:22:05,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:22:05,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:22:05,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:22:05,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 20:22:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:22:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:22:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 20:22:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:22:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 20:22:05,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:22:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 20:22:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 20:22:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:22:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:22:05,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:22:06,764 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:22:06,764 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 20:22:06,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:22:06 BoogieIcfgContainer [2020-08-18 20:22:06,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:22:06,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:22:06,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:22:06,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:22:06,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:22:04" (1/3) ... [2020-08-18 20:22:06,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341adf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:22:06, skipping insertion in model container [2020-08-18 20:22:06,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:22:05" (2/3) ... [2020-08-18 20:22:06,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341adf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:22:06, skipping insertion in model container [2020-08-18 20:22:06,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:22:06" (3/3) ... [2020-08-18 20:22:06,787 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label13.c [2020-08-18 20:22:06,798 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:22:06,809 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:22:06,823 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:22:06,858 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:22:06,859 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:22:06,859 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:22:06,860 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:22:06,860 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:22:06,860 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:22:06,860 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:22:06,860 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:22:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-18 20:22:06,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-18 20:22:06,903 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:06,904 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] [2020-08-18 20:22:06,904 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:06,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:06,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1614181646, now seen corresponding path program 1 times [2020-08-18 20:22:06,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:06,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889771490] [2020-08-18 20:22:06,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:07,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:22:07,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889771490] [2020-08-18 20:22:07,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:22:07,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 20:22:07,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630095085] [2020-08-18 20:22:07,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 20:22:07,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:07,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 20:22:07,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 20:22:07,480 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-08-18 20:22:09,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:09,873 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-08-18 20:22:09,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 20:22:09,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-08-18 20:22:09,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:09,918 INFO L225 Difference]: With dead ends: 730 [2020-08-18 20:22:09,919 INFO L226 Difference]: Without dead ends: 447 [2020-08-18 20:22:09,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:22:09,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-18 20:22:10,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-08-18 20:22:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-18 20:22:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-08-18 20:22:10,086 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 61 [2020-08-18 20:22:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:10,087 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-08-18 20:22:10,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 20:22:10,088 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-08-18 20:22:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-08-18 20:22:10,107 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:10,108 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 20:22:10,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:22:10,108 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:10,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:10,109 INFO L82 PathProgramCache]: Analyzing trace with hash 562524769, now seen corresponding path program 1 times [2020-08-18 20:22:10,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:10,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782839384] [2020-08-18 20:22:10,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:10,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:10,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:22:10,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782839384] [2020-08-18 20:22:10,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:22:10,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 20:22:10,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924390274] [2020-08-18 20:22:10,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:22:10,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:10,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:22:10,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:22:10,645 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 7 states. [2020-08-18 20:22:12,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:12,047 INFO L93 Difference]: Finished difference Result 1033 states and 1590 transitions. [2020-08-18 20:22:12,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 20:22:12,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 180 [2020-08-18 20:22:12,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:12,053 INFO L225 Difference]: With dead ends: 1033 [2020-08-18 20:22:12,053 INFO L226 Difference]: Without dead ends: 598 [2020-08-18 20:22:12,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-18 20:22:12,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-08-18 20:22:12,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 590. [2020-08-18 20:22:12,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-08-18 20:22:12,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 865 transitions. [2020-08-18 20:22:12,088 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 865 transitions. Word has length 180 [2020-08-18 20:22:12,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:12,089 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 865 transitions. [2020-08-18 20:22:12,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:22:12,090 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 865 transitions. [2020-08-18 20:22:12,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-08-18 20:22:12,092 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:12,093 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:22:12,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 20:22:12,093 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:12,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:12,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1013955258, now seen corresponding path program 1 times [2020-08-18 20:22:12,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:12,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113230398] [2020-08-18 20:22:12,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:12,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:12,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:12,371 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:22:12,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113230398] [2020-08-18 20:22:12,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:22:12,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 20:22:12,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679316232] [2020-08-18 20:22:12,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 20:22:12,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:12,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 20:22:12,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 20:22:12,374 INFO L87 Difference]: Start difference. First operand 590 states and 865 transitions. Second operand 8 states. [2020-08-18 20:22:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:13,900 INFO L93 Difference]: Finished difference Result 1343 states and 2016 transitions. [2020-08-18 20:22:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 20:22:13,909 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-08-18 20:22:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:13,916 INFO L225 Difference]: With dead ends: 1343 [2020-08-18 20:22:13,917 INFO L226 Difference]: Without dead ends: 759 [2020-08-18 20:22:13,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-18 20:22:13,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-08-18 20:22:13,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 741. [2020-08-18 20:22:13,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-08-18 20:22:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1015 transitions. [2020-08-18 20:22:13,952 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1015 transitions. Word has length 187 [2020-08-18 20:22:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:13,953 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 1015 transitions. [2020-08-18 20:22:13,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 20:22:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1015 transitions. [2020-08-18 20:22:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-08-18 20:22:13,958 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:13,958 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-18 20:22:13,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 20:22:13,959 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:13,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:13,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1373393371, now seen corresponding path program 1 times [2020-08-18 20:22:13,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:13,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505368060] [2020-08-18 20:22:13,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:14,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:14,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:14,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 20:22:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 20:22:14,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505368060] [2020-08-18 20:22:14,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:22:14,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 20:22:14,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452849971] [2020-08-18 20:22:14,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 20:22:14,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:14,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 20:22:14,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:22:14,599 INFO L87 Difference]: Start difference. First operand 741 states and 1015 transitions. Second operand 12 states. [2020-08-18 20:22:18,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:18,298 INFO L93 Difference]: Finished difference Result 2158 states and 3394 transitions. [2020-08-18 20:22:18,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-18 20:22:18,299 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 250 [2020-08-18 20:22:18,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:18,318 INFO L225 Difference]: With dead ends: 2158 [2020-08-18 20:22:18,318 INFO L226 Difference]: Without dead ends: 1566 [2020-08-18 20:22:18,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2020-08-18 20:22:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2020-08-18 20:22:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1053. [2020-08-18 20:22:18,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-08-18 20:22:18,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1412 transitions. [2020-08-18 20:22:18,409 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1412 transitions. Word has length 250 [2020-08-18 20:22:18,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:18,411 INFO L479 AbstractCegarLoop]: Abstraction has 1053 states and 1412 transitions. [2020-08-18 20:22:18,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 20:22:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1412 transitions. [2020-08-18 20:22:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 20:22:18,419 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:18,419 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:22:18,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 20:22:18,420 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:18,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:18,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1982775645, now seen corresponding path program 1 times [2020-08-18 20:22:18,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:18,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401705003] [2020-08-18 20:22:18,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:18,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:18,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 20:22:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:18,750 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 108 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-18 20:22:18,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401705003] [2020-08-18 20:22:18,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:22:18,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 20:22:18,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616040083] [2020-08-18 20:22:18,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 20:22:18,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:18,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 20:22:18,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 20:22:18,753 INFO L87 Difference]: Start difference. First operand 1053 states and 1412 transitions. Second operand 8 states. [2020-08-18 20:22:20,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:20,786 INFO L93 Difference]: Finished difference Result 2857 states and 4053 transitions. [2020-08-18 20:22:20,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 20:22:20,787 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2020-08-18 20:22:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:20,801 INFO L225 Difference]: With dead ends: 2857 [2020-08-18 20:22:20,801 INFO L226 Difference]: Without dead ends: 1953 [2020-08-18 20:22:20,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-18 20:22:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2020-08-18 20:22:20,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1941. [2020-08-18 20:22:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1941 states. [2020-08-18 20:22:20,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 2513 transitions. [2020-08-18 20:22:20,907 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 2513 transitions. Word has length 254 [2020-08-18 20:22:20,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:20,908 INFO L479 AbstractCegarLoop]: Abstraction has 1941 states and 2513 transitions. [2020-08-18 20:22:20,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 20:22:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 2513 transitions. [2020-08-18 20:22:20,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-08-18 20:22:20,915 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:20,916 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:22:20,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 20:22:20,917 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:20,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:20,918 INFO L82 PathProgramCache]: Analyzing trace with hash 584536702, now seen corresponding path program 1 times [2020-08-18 20:22:20,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:20,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970506931] [2020-08-18 20:22:20,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:21,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:21,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:21,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 20:22:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 112 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 20:22:21,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970506931] [2020-08-18 20:22:21,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:22:21,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 20:22:21,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985770152] [2020-08-18 20:22:21,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 20:22:21,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:21,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 20:22:21,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 20:22:21,364 INFO L87 Difference]: Start difference. First operand 1941 states and 2513 transitions. Second operand 10 states. [2020-08-18 20:22:24,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:24,641 INFO L93 Difference]: Finished difference Result 4928 states and 6582 transitions. [2020-08-18 20:22:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-18 20:22:24,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 259 [2020-08-18 20:22:24,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:24,662 INFO L225 Difference]: With dead ends: 4928 [2020-08-18 20:22:24,662 INFO L226 Difference]: Without dead ends: 3109 [2020-08-18 20:22:24,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-08-18 20:22:24,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-08-18 20:22:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2382. [2020-08-18 20:22:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2382 states. [2020-08-18 20:22:24,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3153 transitions. [2020-08-18 20:22:24,775 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3153 transitions. Word has length 259 [2020-08-18 20:22:24,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:24,775 INFO L479 AbstractCegarLoop]: Abstraction has 2382 states and 3153 transitions. [2020-08-18 20:22:24,775 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 20:22:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3153 transitions. [2020-08-18 20:22:24,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-08-18 20:22:24,784 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:24,784 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:22:24,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 20:22:24,785 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:24,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:24,785 INFO L82 PathProgramCache]: Analyzing trace with hash 356382198, now seen corresponding path program 1 times [2020-08-18 20:22:24,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:24,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689630141] [2020-08-18 20:22:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:24,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:24,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:25,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 20:22:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 220 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 20:22:25,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689630141] [2020-08-18 20:22:25,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:22:25,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 20:22:25,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159215732] [2020-08-18 20:22:25,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 20:22:25,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:25,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 20:22:25,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-18 20:22:25,384 INFO L87 Difference]: Start difference. First operand 2382 states and 3153 transitions. Second operand 9 states. [2020-08-18 20:22:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:28,040 INFO L93 Difference]: Finished difference Result 5070 states and 6800 transitions. [2020-08-18 20:22:28,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 20:22:28,044 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 295 [2020-08-18 20:22:28,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:28,060 INFO L225 Difference]: With dead ends: 5070 [2020-08-18 20:22:28,061 INFO L226 Difference]: Without dead ends: 2837 [2020-08-18 20:22:28,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2020-08-18 20:22:28,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2020-08-18 20:22:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 2831. [2020-08-18 20:22:28,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2831 states. [2020-08-18 20:22:28,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 3700 transitions. [2020-08-18 20:22:28,206 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 3700 transitions. Word has length 295 [2020-08-18 20:22:28,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:28,207 INFO L479 AbstractCegarLoop]: Abstraction has 2831 states and 3700 transitions. [2020-08-18 20:22:28,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 20:22:28,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 3700 transitions. [2020-08-18 20:22:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-08-18 20:22:28,219 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:28,219 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:22:28,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 20:22:28,220 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:28,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1887083094, now seen corresponding path program 1 times [2020-08-18 20:22:28,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:28,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730128299] [2020-08-18 20:22:28,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:28,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:28,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:28,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 20:22:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:28,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-08-18 20:22:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 345 proven. 8 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-08-18 20:22:28,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730128299] [2020-08-18 20:22:28,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:22:28,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 20:22:28,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107261436] [2020-08-18 20:22:28,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 20:22:28,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:28,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 20:22:28,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 20:22:28,746 INFO L87 Difference]: Start difference. First operand 2831 states and 3700 transitions. Second operand 9 states. [2020-08-18 20:22:31,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:31,764 INFO L93 Difference]: Finished difference Result 6812 states and 8958 transitions. [2020-08-18 20:22:31,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 20:22:31,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 367 [2020-08-18 20:22:31,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:31,781 INFO L225 Difference]: With dead ends: 6812 [2020-08-18 20:22:31,782 INFO L226 Difference]: Without dead ends: 3240 [2020-08-18 20:22:31,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-08-18 20:22:31,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3240 states. [2020-08-18 20:22:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3240 to 2378. [2020-08-18 20:22:31,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2378 states. [2020-08-18 20:22:31,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 2771 transitions. [2020-08-18 20:22:31,865 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 2771 transitions. Word has length 367 [2020-08-18 20:22:31,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:31,866 INFO L479 AbstractCegarLoop]: Abstraction has 2378 states and 2771 transitions. [2020-08-18 20:22:31,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 20:22:31,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 2771 transitions. [2020-08-18 20:22:31,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-08-18 20:22:31,876 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:31,877 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:22:31,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 20:22:31,877 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:31,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:31,878 INFO L82 PathProgramCache]: Analyzing trace with hash -467387859, now seen corresponding path program 1 times [2020-08-18 20:22:31,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:31,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163329933] [2020-08-18 20:22:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:32,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:32,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-18 20:22:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:32,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-18 20:22:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:32,644 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 237 proven. 187 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-18 20:22:32,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163329933] [2020-08-18 20:22:32,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:22:32,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 20:22:32,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516621875] [2020-08-18 20:22:32,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 20:22:32,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:32,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 20:22:32,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-18 20:22:32,647 INFO L87 Difference]: Start difference. First operand 2378 states and 2771 transitions. Second operand 11 states. [2020-08-18 20:22:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:36,480 INFO L93 Difference]: Finished difference Result 5211 states and 6202 transitions. [2020-08-18 20:22:36,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-18 20:22:36,481 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 372 [2020-08-18 20:22:36,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:36,494 INFO L225 Difference]: With dead ends: 5211 [2020-08-18 20:22:36,494 INFO L226 Difference]: Without dead ends: 3129 [2020-08-18 20:22:36,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2020-08-18 20:22:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2020-08-18 20:22:36,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 3117. [2020-08-18 20:22:36,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3117 states. [2020-08-18 20:22:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 3563 transitions. [2020-08-18 20:22:36,608 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 3563 transitions. Word has length 372 [2020-08-18 20:22:36,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:36,609 INFO L479 AbstractCegarLoop]: Abstraction has 3117 states and 3563 transitions. [2020-08-18 20:22:36,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 20:22:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 3563 transitions. [2020-08-18 20:22:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-08-18 20:22:36,621 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:36,621 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 20:22:36,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 20:22:36,622 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:36,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:36,622 INFO L82 PathProgramCache]: Analyzing trace with hash -115602834, now seen corresponding path program 1 times [2020-08-18 20:22:36,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:36,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990206376] [2020-08-18 20:22:36,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:36,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:36,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:36,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 20:22:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:37,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-18 20:22:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 167 proven. 188 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-08-18 20:22:37,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990206376] [2020-08-18 20:22:37,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:22:37,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 20:22:37,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582523614] [2020-08-18 20:22:37,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-18 20:22:37,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:37,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-18 20:22:37,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-08-18 20:22:37,687 INFO L87 Difference]: Start difference. First operand 3117 states and 3563 transitions. Second operand 14 states. [2020-08-18 20:22:43,153 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-08-18 20:22:43,600 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-08-18 20:22:44,207 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-08-18 20:22:45,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:45,060 INFO L93 Difference]: Finished difference Result 6550 states and 7619 transitions. [2020-08-18 20:22:45,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-08-18 20:22:45,061 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 383 [2020-08-18 20:22:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:45,076 INFO L225 Difference]: With dead ends: 6550 [2020-08-18 20:22:45,076 INFO L226 Difference]: Without dead ends: 3731 [2020-08-18 20:22:45,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=575, Invalid=2395, Unknown=0, NotChecked=0, Total=2970 [2020-08-18 20:22:45,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2020-08-18 20:22:45,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3709. [2020-08-18 20:22:45,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3709 states. [2020-08-18 20:22:45,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 4242 transitions. [2020-08-18 20:22:45,169 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 4242 transitions. Word has length 383 [2020-08-18 20:22:45,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:45,170 INFO L479 AbstractCegarLoop]: Abstraction has 3709 states and 4242 transitions. [2020-08-18 20:22:45,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-18 20:22:45,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 4242 transitions. [2020-08-18 20:22:45,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-08-18 20:22:45,183 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:22:45,183 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:22:45,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 20:22:45,184 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:22:45,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:22:45,184 INFO L82 PathProgramCache]: Analyzing trace with hash -145294626, now seen corresponding path program 1 times [2020-08-18 20:22:45,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:22:45,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543600458] [2020-08-18 20:22:45,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:22:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:45,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:22:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:45,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 20:22:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:45,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-18 20:22:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:45,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-08-18 20:22:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:22:45,532 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 165 proven. 3 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-08-18 20:22:45,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543600458] [2020-08-18 20:22:45,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:22:45,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 20:22:45,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998097833] [2020-08-18 20:22:45,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 20:22:45,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:22:45,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 20:22:45,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 20:22:45,534 INFO L87 Difference]: Start difference. First operand 3709 states and 4242 transitions. Second operand 5 states. [2020-08-18 20:22:46,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:22:46,706 INFO L93 Difference]: Finished difference Result 7267 states and 8379 transitions. [2020-08-18 20:22:46,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 20:22:46,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 391 [2020-08-18 20:22:46,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:22:46,715 INFO L225 Difference]: With dead ends: 7267 [2020-08-18 20:22:46,715 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 20:22:46,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 20:22:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 20:22:46,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 20:22:46,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 20:22:46,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 20:22:46,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 391 [2020-08-18 20:22:46,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:22:46,731 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 20:22:46,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 20:22:46,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 20:22:46,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 20:22:46,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 20:22:46,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 20:22:47,508 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 193 [2020-08-18 20:22:47,724 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 193 [2020-08-18 20:22:47,888 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-08-18 20:22:48,902 WARN L193 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 45 [2020-08-18 20:22:49,712 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 58 [2020-08-18 20:22:50,461 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 58 [2020-08-18 20:22:50,465 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 20:22:50,465 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-08-18 20:22:50,465 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 20:22:50,466 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-18 20:22:50,466 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,466 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,466 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,466 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,467 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,467 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,467 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-18 20:22:50,467 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-18 20:22:50,467 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,468 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-18 20:22:50,469 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-18 20:22:50,470 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-18 20:22:50,470 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-18 20:22:50,470 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2020-08-18 20:22:50,470 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-18 20:22:50,470 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,470 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,470 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,471 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,471 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,471 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-18 20:22:50,471 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-18 20:22:50,471 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-18 20:22:50,471 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-18 20:22:50,471 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-18 20:22:50,471 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-18 20:22:50,471 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-18 20:22:50,472 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-18 20:22:50,473 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-18 20:22:50,473 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-18 20:22:50,473 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-18 20:22:50,473 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-18 20:22:50,473 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-18 20:22:50,473 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-18 20:22:50,473 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-18 20:22:50,473 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-18 20:22:50,473 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-18 20:22:50,474 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-18 20:22:50,474 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-18 20:22:50,474 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,474 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,474 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,474 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,474 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,474 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-18 20:22:50,475 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-18 20:22:50,475 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-18 20:22:50,475 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-18 20:22:50,475 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-18 20:22:50,475 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-18 20:22:50,475 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-18 20:22:50,475 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-18 20:22:50,475 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-18 20:22:50,475 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-18 20:22:50,476 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,477 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,478 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,478 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,478 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-18 20:22:50,478 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,478 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,478 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-18 20:22:50,478 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-18 20:22:50,478 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-18 20:22:50,479 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-18 20:22:50,479 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-18 20:22:50,479 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-18 20:22:50,479 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-18 20:22:50,479 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-18 20:22:50,479 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-18 20:22:50,479 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-18 20:22:50,479 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-18 20:22:50,479 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-18 20:22:50,480 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-18 20:22:50,481 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-18 20:22:50,481 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-18 20:22:50,481 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-18 20:22:50,481 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-18 20:22:50,481 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-18 20:22:50,481 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-18 20:22:50,481 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-18 20:22:50,481 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-18 20:22:50,482 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse4 (= 3 |old(~a10~0)|)) (.cse1 (not (<= |old(~a19~0)| 9))) (.cse2 (not (= 14 ~a4~0))) (.cse3 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 .cse2 (not (<= |old(~a1~0)| 33)) .cse3) (or .cse0 (not (= 9 |old(~a19~0)|)) .cse2 .cse3) (or (not (<= 10 |old(~a19~0)|)) .cse0 .cse4 (= 4 |old(~a10~0)|) .cse2 .cse3) (or (= 6 |old(~a19~0)|) .cse0 .cse4 .cse1 .cse2 .cse3))) [2020-08-18 20:22:50,482 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-18 20:22:50,482 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-18 20:22:50,482 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-18 20:22:50,482 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,482 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,482 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,482 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,483 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,483 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,483 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-18 20:22:50,483 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-18 20:22:50,483 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-18 20:22:50,483 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-18 20:22:50,483 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-18 20:22:50,483 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-18 20:22:50,483 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-18 20:22:50,484 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-18 20:22:50,484 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-18 20:22:50,484 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-18 20:22:50,484 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-18 20:22:50,484 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-18 20:22:50,484 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-18 20:22:50,484 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,484 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,484 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,485 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,485 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,485 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,485 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-18 20:22:50,485 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-18 20:22:50,485 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-18 20:22:50,485 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-18 20:22:50,485 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-18 20:22:50,485 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-18 20:22:50,486 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-18 20:22:50,486 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-18 20:22:50,486 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-18 20:22:50,486 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-18 20:22:50,486 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-18 20:22:50,486 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-18 20:22:50,486 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,486 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,486 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-18 20:22:50,487 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-18 20:22:50,488 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-18 20:22:50,488 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-18 20:22:50,488 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-18 20:22:50,488 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-18 20:22:50,488 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 20:22:50,488 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= 14 ~a4~0) (<= 9 ~a19~0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-08-18 20:22:50,488 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 20:22:50,488 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 20:22:50,488 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-08-18 20:22:50,488 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-18 20:22:50,489 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (not (= ~a10~0 3))) (.cse3 (not (= ~a19~0 9))) (.cse1 (<= ~a1~0 23)) (.cse0 (<= ~a19~0 9)) (.cse4 (= 0 |old(~a10~0)|))) (or (and (<= 23 ~a1~0) .cse0 .cse1 (= ~a10~0 |old(~a10~0)|)) (and .cse2 .cse3 (not (= ~a19~0 6)) .cse0) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (= ~a19~0 |old(~a19~0)|) .cse4) (and (not (= ~a10~0 4)) .cse2 (<= 10 ~a19~0) .cse4) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse2 .cse3 .cse0 .cse1) (and (<= ~a1~0 33) .cse0 .cse4))) [2020-08-18 20:22:50,489 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-18 20:22:50,489 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-18 20:22:50,489 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse2 (not (= ~a10~0 3))) (.cse3 (not (= ~a19~0 9))) (.cse1 (<= ~a1~0 23)) (.cse0 (<= ~a19~0 9)) (.cse4 (= 0 |old(~a10~0)|))) (or (and (<= 23 ~a1~0) .cse0 .cse1 (= ~a10~0 |old(~a10~0)|)) (and .cse2 .cse3 (not (= ~a19~0 6)) .cse0) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (= ~a19~0 |old(~a19~0)|) .cse4) (and (not (= ~a10~0 4)) .cse2 (<= 10 ~a19~0) .cse4) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse2 .cse3 .cse0 .cse1) (and (<= ~a1~0 33) .cse0 .cse4))) [2020-08-18 20:22:50,489 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-18 20:22:50,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 08:22:50 BoogieIcfgContainer [2020-08-18 20:22:50,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 20:22:50,524 INFO L168 Benchmark]: Toolchain (without parser) took 45951.97 ms. Allocated memory was 146.8 MB in the beginning and 654.3 MB in the end (delta: 507.5 MB). Free memory was 101.0 MB in the beginning and 456.0 MB in the end (delta: -355.0 MB). Peak memory consumption was 525.7 MB. Max. memory is 7.1 GB. [2020-08-18 20:22:50,524 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 20:22:50,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.48 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 168.2 MB in the end (delta: -67.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-08-18 20:22:50,529 INFO L168 Benchmark]: Boogie Preprocessor took 120.63 ms. Allocated memory is still 203.9 MB. Free memory was 168.2 MB in the beginning and 163.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-08-18 20:22:50,530 INFO L168 Benchmark]: RCFGBuilder took 1270.58 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 163.3 MB in the beginning and 177.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-08-18 20:22:50,533 INFO L168 Benchmark]: TraceAbstraction took 43743.61 ms. Allocated memory was 237.0 MB in the beginning and 654.3 MB in the end (delta: 417.3 MB). Free memory was 177.8 MB in the beginning and 456.0 MB in the end (delta: -278.2 MB). Peak memory consumption was 512.3 MB. Max. memory is 7.1 GB. [2020-08-18 20:22:50,539 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 810.48 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 168.2 MB in the end (delta: -67.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.63 ms. Allocated memory is still 203.9 MB. Free memory was 168.2 MB in the beginning and 163.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1270.58 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 163.3 MB in the beginning and 177.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43743.61 ms. Allocated memory was 237.0 MB in the beginning and 654.3 MB in the end (delta: 417.3 MB). Free memory was 177.8 MB in the beginning and 456.0 MB in the end (delta: -278.2 MB). Peak memory consumption was 512.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((((((((23 <= a1 && a19 <= 9) && a1 <= 23) && a10 == \old(a10)) || (((!(a10 == 3) && !(a19 == 9)) && !(a19 == 6)) && a19 <= 9)) || !(a12 == 0)) || !(23 <= \old(a1))) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (a19 == \old(a19) && 0 == \old(a10))) || (((!(a10 == 4) && !(a10 == 3)) && 10 <= a19) && 0 == \old(a10))) || !(\old(a1) <= 23)) || !(14 == a4)) || !(\old(a19) <= 9)) || (((!(a10 == 3) && !(a19 == 9)) && a19 <= 9) && a1 <= 23)) || ((a1 <= 33 && a19 <= 9) && 0 == \old(a10)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.8s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 32.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 9573 SDslu, 666 SDs, 0 SdLazy, 18405 SolverSat, 3313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3709occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 2186 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 159 PreInvPairs, 227 NumberOfFragments, 418 HoareAnnotationTreeSize, 159 FomulaSimplifications, 55716 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16111 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 2999 NumberOfCodeBlocks, 2999 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2988 ConstructedInterpolants, 0 QuantifiedInterpolants, 3043214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 2053/2586 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...