/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 16:34:00,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 16:34:00,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 16:34:00,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-21 16:34:00,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 16:34:00,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 16:34:00,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 16:34:00,888 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 [2020-08-21 16:34:00,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 16:34:00,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 16:34:00,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 16:34:00,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 16:34:00,932 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 16:34:00,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 16:34:00,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 16:34:00,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 16:34:00,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 16:34:00,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 16:34:00,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 16:34:00,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 16:34:00,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 16:34:00,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 16:34:00,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 16:34:00,936 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 16:34:00,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 16:34:00,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 16:34:00,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 16:34:00,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 16:34:00,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 16:34:00,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 16:34:00,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 16:34:00,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 16:34:00,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 16:34:00,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 16:34:00,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 16:34:00,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 16:34:00,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 16:34:00,939 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-08-21 16:34:01,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 16:34:01,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 16:34:01,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 16:34:01,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 16:34:01,291 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 16:34:01,292 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-21 16:34:01,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6d5ce414/296e1602e1634461a74380e70ff33a2e/FLAGff9e5ec4f [2020-08-21 16:34:01,939 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 16:34:01,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-21 16:34:01,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6d5ce414/296e1602e1634461a74380e70ff33a2e/FLAGff9e5ec4f [2020-08-21 16:34:02,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6d5ce414/296e1602e1634461a74380e70ff33a2e [2020-08-21 16:34:02,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 16:34:02,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 16:34:02,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 16:34:02,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 16:34:02,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 16:34:02,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:34:02" (1/1) ... [2020-08-21 16:34:02,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b0574d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02, skipping insertion in model container [2020-08-21 16:34:02,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:34:02" (1/1) ... [2020-08-21 16:34:02,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 16:34:02,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 16:34:02,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 16:34:02,752 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 16:34:02,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 16:34:02,998 INFO L208 MainTranslator]: Completed translation [2020-08-21 16:34:02,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02 WrapperNode [2020-08-21 16:34:02,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 16:34:03,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 16:34:03,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 16:34:03,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 16:34:03,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02" (1/1) ... [2020-08-21 16:34:03,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02" (1/1) ... [2020-08-21 16:34:03,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02" (1/1) ... [2020-08-21 16:34:03,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02" (1/1) ... [2020-08-21 16:34:03,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02" (1/1) ... [2020-08-21 16:34:03,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02" (1/1) ... [2020-08-21 16:34:03,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02" (1/1) ... [2020-08-21 16:34:03,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 16:34:03,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 16:34:03,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 16:34:03,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 16:34:03,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02" (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 [2020-08-21 16:34:03,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 16:34:03,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 16:34:03,228 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 16:34:03,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 16:34:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 16:34:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 16:34:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 16:34:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 16:34:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 16:34:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 16:34:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 16:34:04,375 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 16:34:04,375 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 16:34:04,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:34:04 BoogieIcfgContainer [2020-08-21 16:34:04,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 16:34:04,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 16:34:04,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 16:34:04,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 16:34:04,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 04:34:02" (1/3) ... [2020-08-21 16:34:04,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8db59f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:34:04, skipping insertion in model container [2020-08-21 16:34:04,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:34:02" (2/3) ... [2020-08-21 16:34:04,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a8db59f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:34:04, skipping insertion in model container [2020-08-21 16:34:04,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:34:04" (3/3) ... [2020-08-21 16:34:04,399 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-08-21 16:34:04,410 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 16:34:04,422 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 16:34:04,437 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 16:34:04,476 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 16:34:04,478 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 16:34:04,478 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 16:34:04,479 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 16:34:04,479 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 16:34:04,479 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 16:34:04,479 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 16:34:04,479 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 16:34:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-21 16:34:04,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-08-21 16:34:04,516 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:04,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:04,518 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:04,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:04,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2020-08-21 16:34:04,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:04,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133315221] [2020-08-21 16:34:04,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:05,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 16:34:05,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133315221] [2020-08-21 16:34:05,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 16:34:05,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 16:34:05,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346921208] [2020-08-21 16:34:05,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 16:34:05,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:05,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 16:34:05,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 16:34:05,168 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-21 16:34:07,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:07,189 INFO L93 Difference]: Finished difference Result 723 states and 1255 transitions. [2020-08-21 16:34:07,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 16:34:07,205 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-08-21 16:34:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:07,223 INFO L225 Difference]: With dead ends: 723 [2020-08-21 16:34:07,223 INFO L226 Difference]: Without dead ends: 423 [2020-08-21 16:34:07,232 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 [2020-08-21 16:34:07,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-21 16:34:07,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-21 16:34:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-21 16:34:07,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 584 transitions. [2020-08-21 16:34:07,347 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 584 transitions. Word has length 122 [2020-08-21 16:34:07,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:07,349 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 584 transitions. [2020-08-21 16:34:07,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 16:34:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 584 transitions. [2020-08-21 16:34:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-21 16:34:07,366 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:07,366 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:07,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 16:34:07,366 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:07,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:07,367 INFO L82 PathProgramCache]: Analyzing trace with hash -259733235, now seen corresponding path program 1 times [2020-08-21 16:34:07,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:07,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266997652] [2020-08-21 16:34:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:07,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:07,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:07,595 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 16:34:07,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266997652] [2020-08-21 16:34:07,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 16:34:07,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 16:34:07,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416104109] [2020-08-21 16:34:07,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 16:34:07,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:07,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 16:34:07,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 16:34:07,600 INFO L87 Difference]: Start difference. First operand 417 states and 584 transitions. Second operand 8 states. [2020-08-21 16:34:08,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:08,956 INFO L93 Difference]: Finished difference Result 1269 states and 1843 transitions. [2020-08-21 16:34:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 16:34:08,959 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-08-21 16:34:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:08,967 INFO L225 Difference]: With dead ends: 1269 [2020-08-21 16:34:08,968 INFO L226 Difference]: Without dead ends: 858 [2020-08-21 16:34:08,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:34:08,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-08-21 16:34:09,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 834. [2020-08-21 16:34:09,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-08-21 16:34:09,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1168 transitions. [2020-08-21 16:34:09,036 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1168 transitions. Word has length 132 [2020-08-21 16:34:09,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:09,037 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1168 transitions. [2020-08-21 16:34:09,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 16:34:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1168 transitions. [2020-08-21 16:34:09,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-08-21 16:34:09,042 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:09,043 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:09,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 16:34:09,043 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:09,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:09,044 INFO L82 PathProgramCache]: Analyzing trace with hash 2082377679, now seen corresponding path program 1 times [2020-08-21 16:34:09,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:09,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430652940] [2020-08-21 16:34:09,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:09,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:09,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 16:34:09,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430652940] [2020-08-21 16:34:09,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:09,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 16:34:09,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141782833] [2020-08-21 16:34:09,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 16:34:09,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:09,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 16:34:09,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 16:34:09,444 INFO L87 Difference]: Start difference. First operand 834 states and 1168 transitions. Second operand 6 states. [2020-08-21 16:34:10,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:10,687 INFO L93 Difference]: Finished difference Result 1769 states and 2519 transitions. [2020-08-21 16:34:10,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 16:34:10,689 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-08-21 16:34:10,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:10,697 INFO L225 Difference]: With dead ends: 1769 [2020-08-21 16:34:10,698 INFO L226 Difference]: Without dead ends: 840 [2020-08-21 16:34:10,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 16:34:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2020-08-21 16:34:10,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 832. [2020-08-21 16:34:10,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-08-21 16:34:10,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1059 transitions. [2020-08-21 16:34:10,755 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1059 transitions. Word has length 133 [2020-08-21 16:34:10,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:10,755 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1059 transitions. [2020-08-21 16:34:10,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 16:34:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1059 transitions. [2020-08-21 16:34:10,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-08-21 16:34:10,760 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:10,760 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:10,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 16:34:10,760 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:10,761 INFO L82 PathProgramCache]: Analyzing trace with hash 394249543, now seen corresponding path program 1 times [2020-08-21 16:34:10,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:10,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896274551] [2020-08-21 16:34:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:10,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:10,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 16:34:10,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896274551] [2020-08-21 16:34:10,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:10,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 16:34:10,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016135344] [2020-08-21 16:34:10,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 16:34:10,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:10,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 16:34:10,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 16:34:10,947 INFO L87 Difference]: Start difference. First operand 832 states and 1059 transitions. Second operand 5 states. [2020-08-21 16:34:11,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:11,912 INFO L93 Difference]: Finished difference Result 2079 states and 2683 transitions. [2020-08-21 16:34:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 16:34:11,913 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-08-21 16:34:11,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:11,925 INFO L225 Difference]: With dead ends: 2079 [2020-08-21 16:34:11,925 INFO L226 Difference]: Without dead ends: 1253 [2020-08-21 16:34:11,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 16:34:11,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-08-21 16:34:11,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1243. [2020-08-21 16:34:11,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1243 states. [2020-08-21 16:34:11,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1550 transitions. [2020-08-21 16:34:11,993 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1550 transitions. Word has length 137 [2020-08-21 16:34:11,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:11,994 INFO L479 AbstractCegarLoop]: Abstraction has 1243 states and 1550 transitions. [2020-08-21 16:34:11,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 16:34:11,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1550 transitions. [2020-08-21 16:34:11,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-08-21 16:34:11,999 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:12,000 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:12,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 16:34:12,001 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:12,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:12,001 INFO L82 PathProgramCache]: Analyzing trace with hash 706222219, now seen corresponding path program 1 times [2020-08-21 16:34:12,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:12,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009699025] [2020-08-21 16:34:12,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:12,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:12,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:12,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-21 16:34:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:12,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 16:34:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-08-21 16:34:12,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009699025] [2020-08-21 16:34:12,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:12,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 16:34:12,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082974048] [2020-08-21 16:34:12,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 16:34:12,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:12,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 16:34:12,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 16:34:12,267 INFO L87 Difference]: Start difference. First operand 1243 states and 1550 transitions. Second operand 7 states. [2020-08-21 16:34:12,414 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-08-21 16:34:13,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:13,713 INFO L93 Difference]: Finished difference Result 3360 states and 4273 transitions. [2020-08-21 16:34:13,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 16:34:13,714 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-08-21 16:34:13,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:13,732 INFO L225 Difference]: With dead ends: 3360 [2020-08-21 16:34:13,733 INFO L226 Difference]: Without dead ends: 2123 [2020-08-21 16:34:13,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:34:13,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2020-08-21 16:34:13,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 1962. [2020-08-21 16:34:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-08-21 16:34:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2370 transitions. [2020-08-21 16:34:13,823 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2370 transitions. Word has length 181 [2020-08-21 16:34:13,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:13,824 INFO L479 AbstractCegarLoop]: Abstraction has 1962 states and 2370 transitions. [2020-08-21 16:34:13,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 16:34:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2370 transitions. [2020-08-21 16:34:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-08-21 16:34:13,832 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:13,833 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:13,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 16:34:13,834 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:13,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:13,835 INFO L82 PathProgramCache]: Analyzing trace with hash 853819156, now seen corresponding path program 1 times [2020-08-21 16:34:13,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:13,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717746011] [2020-08-21 16:34:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:13,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:14,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:14,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 16:34:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:14,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 16:34:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:14,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-21 16:34:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 75 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-08-21 16:34:14,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717746011] [2020-08-21 16:34:14,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:14,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 16:34:14,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298231852] [2020-08-21 16:34:14,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 16:34:14,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:14,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 16:34:14,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 16:34:14,110 INFO L87 Difference]: Start difference. First operand 1962 states and 2370 transitions. Second operand 7 states. [2020-08-21 16:34:15,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:15,382 INFO L93 Difference]: Finished difference Result 5487 states and 6885 transitions. [2020-08-21 16:34:15,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 16:34:15,383 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-08-21 16:34:15,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:15,400 INFO L225 Difference]: With dead ends: 5487 [2020-08-21 16:34:15,400 INFO L226 Difference]: Without dead ends: 3531 [2020-08-21 16:34:15,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:34:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2020-08-21 16:34:15,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3360. [2020-08-21 16:34:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3360 states. [2020-08-21 16:34:15,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4099 transitions. [2020-08-21 16:34:15,502 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4099 transitions. Word has length 196 [2020-08-21 16:34:15,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:15,503 INFO L479 AbstractCegarLoop]: Abstraction has 3360 states and 4099 transitions. [2020-08-21 16:34:15,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 16:34:15,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4099 transitions. [2020-08-21 16:34:15,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-21 16:34:15,515 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:15,516 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:15,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 16:34:15,516 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:15,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:15,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1458466897, now seen corresponding path program 1 times [2020-08-21 16:34:15,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:15,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645619239] [2020-08-21 16:34:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:15,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:15,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 16:34:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:15,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-21 16:34:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 80 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-08-21 16:34:15,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645619239] [2020-08-21 16:34:15,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:15,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 16:34:15,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650184288] [2020-08-21 16:34:15,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 16:34:15,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:15,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 16:34:15,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 16:34:15,707 INFO L87 Difference]: Start difference. First operand 3360 states and 4099 transitions. Second operand 7 states. [2020-08-21 16:34:17,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:17,083 INFO L93 Difference]: Finished difference Result 7002 states and 8519 transitions. [2020-08-21 16:34:17,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 16:34:17,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-08-21 16:34:17,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:17,113 INFO L225 Difference]: With dead ends: 7002 [2020-08-21 16:34:17,113 INFO L226 Difference]: Without dead ends: 3648 [2020-08-21 16:34:17,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:34:17,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2020-08-21 16:34:17,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3646. [2020-08-21 16:34:17,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3646 states. [2020-08-21 16:34:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 4303 transitions. [2020-08-21 16:34:17,218 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 4303 transitions. Word has length 195 [2020-08-21 16:34:17,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:17,220 INFO L479 AbstractCegarLoop]: Abstraction has 3646 states and 4303 transitions. [2020-08-21 16:34:17,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 16:34:17,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 4303 transitions. [2020-08-21 16:34:17,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-08-21 16:34:17,233 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:17,233 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:17,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 16:34:17,234 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:17,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:17,235 INFO L82 PathProgramCache]: Analyzing trace with hash 426210850, now seen corresponding path program 1 times [2020-08-21 16:34:17,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:17,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034492115] [2020-08-21 16:34:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:17,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:17,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:17,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-21 16:34:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:17,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 16:34:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:17,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-21 16:34:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:17,492 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 122 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-08-21 16:34:17,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034492115] [2020-08-21 16:34:17,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:17,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 16:34:17,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286137801] [2020-08-21 16:34:17,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 16:34:17,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:17,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 16:34:17,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 16:34:17,495 INFO L87 Difference]: Start difference. First operand 3646 states and 4303 transitions. Second operand 7 states. [2020-08-21 16:34:18,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:18,883 INFO L93 Difference]: Finished difference Result 7167 states and 8462 transitions. [2020-08-21 16:34:18,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 16:34:18,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-08-21 16:34:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:18,901 INFO L225 Difference]: With dead ends: 7167 [2020-08-21 16:34:18,901 INFO L226 Difference]: Without dead ends: 3662 [2020-08-21 16:34:18,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-21 16:34:18,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2020-08-21 16:34:18,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3656. [2020-08-21 16:34:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3656 states. [2020-08-21 16:34:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 4209 transitions. [2020-08-21 16:34:19,002 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 4209 transitions. Word has length 232 [2020-08-21 16:34:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:19,006 INFO L479 AbstractCegarLoop]: Abstraction has 3656 states and 4209 transitions. [2020-08-21 16:34:19,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 16:34:19,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 4209 transitions. [2020-08-21 16:34:19,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-08-21 16:34:19,019 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:19,019 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:19,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 16:34:19,020 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:19,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:19,020 INFO L82 PathProgramCache]: Analyzing trace with hash 604394622, now seen corresponding path program 1 times [2020-08-21 16:34:19,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:19,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196366925] [2020-08-21 16:34:19,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:19,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:19,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:19,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 16:34:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:19,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 16:34:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:19,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-21 16:34:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:19,370 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 147 proven. 39 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-08-21 16:34:19,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196366925] [2020-08-21 16:34:19,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:19,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 16:34:19,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719153737] [2020-08-21 16:34:19,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 16:34:19,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:19,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 16:34:19,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 16:34:19,378 INFO L87 Difference]: Start difference. First operand 3656 states and 4209 transitions. Second operand 9 states. [2020-08-21 16:34:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:23,507 INFO L93 Difference]: Finished difference Result 11217 states and 13877 transitions. [2020-08-21 16:34:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-21 16:34:23,507 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2020-08-21 16:34:23,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:23,545 INFO L225 Difference]: With dead ends: 11217 [2020-08-21 16:34:23,546 INFO L226 Difference]: Without dead ends: 7702 [2020-08-21 16:34:23,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2020-08-21 16:34:23,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7702 states. [2020-08-21 16:34:23,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7702 to 7406. [2020-08-21 16:34:23,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7406 states. [2020-08-21 16:34:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 9126 transitions. [2020-08-21 16:34:23,863 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 9126 transitions. Word has length 246 [2020-08-21 16:34:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:23,863 INFO L479 AbstractCegarLoop]: Abstraction has 7406 states and 9126 transitions. [2020-08-21 16:34:23,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 16:34:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 9126 transitions. [2020-08-21 16:34:23,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-08-21 16:34:23,893 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:23,894 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 16:34:23,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 16:34:23,894 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:23,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:23,895 INFO L82 PathProgramCache]: Analyzing trace with hash -763457286, now seen corresponding path program 1 times [2020-08-21 16:34:23,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:23,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836140624] [2020-08-21 16:34:23,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:24,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:24,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:24,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 16:34:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:24,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 16:34:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:24,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-21 16:34:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 171 proven. 27 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-08-21 16:34:24,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836140624] [2020-08-21 16:34:24,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:24,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 16:34:24,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655604462] [2020-08-21 16:34:24,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 16:34:24,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:24,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 16:34:24,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-21 16:34:24,281 INFO L87 Difference]: Start difference. First operand 7406 states and 9126 transitions. Second operand 10 states. [2020-08-21 16:34:24,915 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-08-21 16:34:26,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:26,875 INFO L93 Difference]: Finished difference Result 14172 states and 17050 transitions. [2020-08-21 16:34:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 16:34:26,876 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 276 [2020-08-21 16:34:26,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:26,901 INFO L225 Difference]: With dead ends: 14172 [2020-08-21 16:34:26,902 INFO L226 Difference]: Without dead ends: 6907 [2020-08-21 16:34:26,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-08-21 16:34:26,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6907 states. [2020-08-21 16:34:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6907 to 6883. [2020-08-21 16:34:27,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6883 states. [2020-08-21 16:34:27,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6883 states to 6883 states and 7945 transitions. [2020-08-21 16:34:27,074 INFO L78 Accepts]: Start accepts. Automaton has 6883 states and 7945 transitions. Word has length 276 [2020-08-21 16:34:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:27,075 INFO L479 AbstractCegarLoop]: Abstraction has 6883 states and 7945 transitions. [2020-08-21 16:34:27,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 16:34:27,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6883 states and 7945 transitions. [2020-08-21 16:34:27,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-08-21 16:34:27,095 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:27,096 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 16:34:27,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 16:34:27,096 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:27,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:27,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2075847519, now seen corresponding path program 1 times [2020-08-21 16:34:27,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:27,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758001746] [2020-08-21 16:34:27,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:27,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:27,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:27,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 16:34:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:27,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 16:34:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:27,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 16:34:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:27,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-21 16:34:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:27,629 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 225 proven. 31 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-08-21 16:34:27,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758001746] [2020-08-21 16:34:27,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:27,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 16:34:27,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404057742] [2020-08-21 16:34:27,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 16:34:27,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:27,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 16:34:27,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 16:34:27,633 INFO L87 Difference]: Start difference. First operand 6883 states and 7945 transitions. Second operand 9 states. [2020-08-21 16:34:29,259 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-08-21 16:34:29,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:29,673 INFO L93 Difference]: Finished difference Result 13655 states and 15775 transitions. [2020-08-21 16:34:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 16:34:29,674 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 289 [2020-08-21 16:34:29,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:29,703 INFO L225 Difference]: With dead ends: 13655 [2020-08-21 16:34:29,703 INFO L226 Difference]: Without dead ends: 6913 [2020-08-21 16:34:29,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-08-21 16:34:29,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2020-08-21 16:34:29,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6885. [2020-08-21 16:34:29,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6885 states. [2020-08-21 16:34:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 7926 transitions. [2020-08-21 16:34:29,925 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 7926 transitions. Word has length 289 [2020-08-21 16:34:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:29,926 INFO L479 AbstractCegarLoop]: Abstraction has 6885 states and 7926 transitions. [2020-08-21 16:34:29,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 16:34:29,926 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 7926 transitions. [2020-08-21 16:34:29,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-08-21 16:34:29,955 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:29,956 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-08-21 16:34:29,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 16:34:29,956 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:29,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:29,957 INFO L82 PathProgramCache]: Analyzing trace with hash -394947665, now seen corresponding path program 1 times [2020-08-21 16:34:29,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:29,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341944968] [2020-08-21 16:34:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:30,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:30,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:30,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 16:34:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:30,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 16:34:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:30,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 16:34:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:30,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-21 16:34:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:30,323 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 262 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-08-21 16:34:30,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341944968] [2020-08-21 16:34:30,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:30,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 16:34:30,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615209873] [2020-08-21 16:34:30,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 16:34:30,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:30,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 16:34:30,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 16:34:30,326 INFO L87 Difference]: Start difference. First operand 6885 states and 7926 transitions. Second operand 8 states. [2020-08-21 16:34:31,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:31,500 INFO L93 Difference]: Finished difference Result 13538 states and 15450 transitions. [2020-08-21 16:34:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 16:34:31,501 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 308 [2020-08-21 16:34:31,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:31,522 INFO L225 Difference]: With dead ends: 13538 [2020-08-21 16:34:31,522 INFO L226 Difference]: Without dead ends: 6796 [2020-08-21 16:34:31,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:34:31,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6796 states. [2020-08-21 16:34:31,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6796 to 6053. [2020-08-21 16:34:31,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6053 states. [2020-08-21 16:34:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6053 states to 6053 states and 6739 transitions. [2020-08-21 16:34:31,720 INFO L78 Accepts]: Start accepts. Automaton has 6053 states and 6739 transitions. Word has length 308 [2020-08-21 16:34:31,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:31,721 INFO L479 AbstractCegarLoop]: Abstraction has 6053 states and 6739 transitions. [2020-08-21 16:34:31,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 16:34:31,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6053 states and 6739 transitions. [2020-08-21 16:34:31,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-08-21 16:34:31,741 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:31,741 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:31,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 16:34:31,742 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:31,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:31,742 INFO L82 PathProgramCache]: Analyzing trace with hash 874817583, now seen corresponding path program 1 times [2020-08-21 16:34:31,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:31,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000301753] [2020-08-21 16:34:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:31,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:31,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:31,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 16:34:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:31,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 16:34:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:31,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 16:34:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:32,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-21 16:34:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 198 proven. 5 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-08-21 16:34:32,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000301753] [2020-08-21 16:34:32,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:32,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 16:34:32,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53479063] [2020-08-21 16:34:32,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 16:34:32,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:32,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 16:34:32,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 16:34:32,119 INFO L87 Difference]: Start difference. First operand 6053 states and 6739 transitions. Second operand 5 states. [2020-08-21 16:34:33,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:33,029 INFO L93 Difference]: Finished difference Result 12515 states and 13928 transitions. [2020-08-21 16:34:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 16:34:33,029 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 313 [2020-08-21 16:34:33,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:33,043 INFO L225 Difference]: With dead ends: 12515 [2020-08-21 16:34:33,043 INFO L226 Difference]: Without dead ends: 5497 [2020-08-21 16:34:33,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 16:34:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2020-08-21 16:34:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 5344. [2020-08-21 16:34:33,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5344 states. [2020-08-21 16:34:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5826 transitions. [2020-08-21 16:34:33,165 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5826 transitions. Word has length 313 [2020-08-21 16:34:33,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:33,166 INFO L479 AbstractCegarLoop]: Abstraction has 5344 states and 5826 transitions. [2020-08-21 16:34:33,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 16:34:33,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5826 transitions. [2020-08-21 16:34:33,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-08-21 16:34:33,182 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:33,183 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-08-21 16:34:33,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 16:34:33,184 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:33,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:33,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1264462194, now seen corresponding path program 1 times [2020-08-21 16:34:33,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:33,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449995736] [2020-08-21 16:34:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:33,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:33,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:33,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 16:34:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:33,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 16:34:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:33,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 16:34:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:33,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-21 16:34:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:33,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-21 16:34:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 184 proven. 21 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2020-08-21 16:34:33,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449995736] [2020-08-21 16:34:33,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:33,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 16:34:33,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142452743] [2020-08-21 16:34:33,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 16:34:33,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:33,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 16:34:33,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 16:34:33,723 INFO L87 Difference]: Start difference. First operand 5344 states and 5826 transitions. Second operand 6 states. [2020-08-21 16:34:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:34,926 INFO L93 Difference]: Finished difference Result 5904 states and 6477 transitions. [2020-08-21 16:34:34,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 16:34:34,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 318 [2020-08-21 16:34:34,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:34,942 INFO L225 Difference]: With dead ends: 5904 [2020-08-21 16:34:34,942 INFO L226 Difference]: Without dead ends: 5902 [2020-08-21 16:34:34,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 16:34:34,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2020-08-21 16:34:35,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 5479. [2020-08-21 16:34:35,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-08-21 16:34:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 5996 transitions. [2020-08-21 16:34:35,046 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 5996 transitions. Word has length 318 [2020-08-21 16:34:35,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:35,047 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 5996 transitions. [2020-08-21 16:34:35,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 16:34:35,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 5996 transitions. [2020-08-21 16:34:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-08-21 16:34:35,064 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:35,065 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:35,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 16:34:35,065 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:35,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:35,066 INFO L82 PathProgramCache]: Analyzing trace with hash 41074506, now seen corresponding path program 1 times [2020-08-21 16:34:35,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:35,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199655397] [2020-08-21 16:34:35,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:35,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:35,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:35,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 16:34:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:35,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 16:34:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:35,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 16:34:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:35,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-21 16:34:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:35,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-21 16:34:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 357 proven. 25 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-08-21 16:34:35,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199655397] [2020-08-21 16:34:35,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:35,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-21 16:34:35,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922302761] [2020-08-21 16:34:35,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 16:34:35,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:35,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 16:34:35,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-21 16:34:35,760 INFO L87 Difference]: Start difference. First operand 5479 states and 5996 transitions. Second operand 12 states. [2020-08-21 16:34:36,148 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-08-21 16:34:36,657 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-08-21 16:34:37,951 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-08-21 16:34:38,498 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-08-21 16:34:39,257 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-08-21 16:34:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:39,820 INFO L93 Difference]: Finished difference Result 10259 states and 11214 transitions. [2020-08-21 16:34:39,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-21 16:34:39,821 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 338 [2020-08-21 16:34:39,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:39,833 INFO L225 Difference]: With dead ends: 10259 [2020-08-21 16:34:39,833 INFO L226 Difference]: Without dead ends: 4923 [2020-08-21 16:34:39,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2020-08-21 16:34:39,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2020-08-21 16:34:39,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4905. [2020-08-21 16:34:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4905 states. [2020-08-21 16:34:39,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4905 states to 4905 states and 5319 transitions. [2020-08-21 16:34:39,922 INFO L78 Accepts]: Start accepts. Automaton has 4905 states and 5319 transitions. Word has length 338 [2020-08-21 16:34:39,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:39,923 INFO L479 AbstractCegarLoop]: Abstraction has 4905 states and 5319 transitions. [2020-08-21 16:34:39,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 16:34:39,923 INFO L276 IsEmpty]: Start isEmpty. Operand 4905 states and 5319 transitions. [2020-08-21 16:34:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-08-21 16:34:39,936 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 16:34:39,936 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 16:34:39,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-21 16:34:39,936 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 16:34:39,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 16:34:39,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1269018866, now seen corresponding path program 1 times [2020-08-21 16:34:39,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 16:34:39,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720128173] [2020-08-21 16:34:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 16:34:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:40,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 16:34:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:40,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 16:34:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:40,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 16:34:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:40,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 16:34:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:40,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 16:34:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:40,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-21 16:34:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:40,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-21 16:34:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 16:34:40,415 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 224 proven. 24 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2020-08-21 16:34:40,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720128173] [2020-08-21 16:34:40,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 16:34:40,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 16:34:40,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166018750] [2020-08-21 16:34:40,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 16:34:40,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 16:34:40,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 16:34:40,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 16:34:40,417 INFO L87 Difference]: Start difference. First operand 4905 states and 5319 transitions. Second operand 7 states. [2020-08-21 16:34:41,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 16:34:41,596 INFO L93 Difference]: Finished difference Result 8974 states and 9763 transitions. [2020-08-21 16:34:41,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 16:34:41,597 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 358 [2020-08-21 16:34:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 16:34:41,598 INFO L225 Difference]: With dead ends: 8974 [2020-08-21 16:34:41,598 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 16:34:41,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-21 16:34:41,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 16:34:41,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 16:34:41,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 16:34:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 16:34:41,610 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 358 [2020-08-21 16:34:41,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 16:34:41,611 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 16:34:41,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 16:34:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 16:34:41,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 16:34:41,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-21 16:34:41,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 16:34:42,605 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 215 [2020-08-21 16:34:43,051 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 215 [2020-08-21 16:34:45,389 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 243 DAG size of output: 99 [2020-08-21 16:34:46,869 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 211 DAG size of output: 87 [2020-08-21 16:34:48,357 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 211 DAG size of output: 87 [2020-08-21 16:34:48,362 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 16:34:48,363 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-21 16:34:48,363 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 16:34:48,363 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-21 16:34:48,363 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-21 16:34:48,363 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,364 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,364 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,364 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,364 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,364 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,364 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-21 16:34:48,364 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-21 16:34:48,364 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-21 16:34:48,364 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,365 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2020-08-21 16:34:48,366 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-21 16:34:48,367 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-21 16:34:48,368 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-21 16:34:48,368 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-21 16:34:48,368 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-21 16:34:48,368 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-21 16:34:48,368 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-21 16:34:48,368 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,368 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,368 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,368 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,369 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,369 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-21 16:34:48,369 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-21 16:34:48,369 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-21 16:34:48,369 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-21 16:34:48,369 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-21 16:34:48,369 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-21 16:34:48,369 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,370 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,371 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-21 16:34:48,372 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,373 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,374 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,374 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,374 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,374 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-21 16:34:48,374 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-21 16:34:48,374 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-21 16:34:48,374 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-21 16:34:48,374 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-21 16:34:48,374 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-21 16:34:48,375 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-21 16:34:48,376 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-21 16:34:48,376 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-21 16:34:48,376 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-21 16:34:48,376 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-21 16:34:48,376 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-21 16:34:48,376 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-21 16:34:48,376 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-21 16:34:48,381 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse13 (= |old(~a20~0)| 1)) (.cse15 (= |old(~a7~0)| 1)) (.cse6 (= ~a16~0 |old(~a16~0)|)) (.cse28 (= ~a8~0 13)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a21~0 |old(~a21~0)|)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse7 (= ~a8~0 |old(~a8~0)|)) (.cse29 (= ~a16~0 4))) (let ((.cse18 (not (<= 14 |old(~a8~0)|))) (.cse22 (and .cse3 .cse2 .cse4 .cse5 .cse7 .cse29)) (.cse19 (not (<= |old(~a16~0)| 5))) (.cse23 (and .cse3 .cse2 .cse4 .cse5 .cse7 (= 5 ~a16~0))) (.cse24 (not (= 5 |old(~a16~0)|))) (.cse26 (and .cse3 .cse2 .cse4 .cse5 .cse6 .cse28)) (.cse8 (not (<= |old(~a17~0)| 0))) (.cse16 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= |old(~a7~0)| 0))) (.cse17 (not (<= 15 |old(~a8~0)|))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse25 (not (= 6 |old(~a16~0)|))) (.cse20 (and .cse3 .cse2 .cse4 .cse5 .cse6 .cse7)) (.cse10 (not (<= |old(~a20~0)| 0))) (.cse12 (not (= |old(~a8~0)| 13))) (.cse27 (not .cse15)) (.cse14 (and .cse3 .cse2 .cse4 .cse5 .cse28 .cse29)) (.cse21 (not .cse13)) (.cse9 (not (= ~a12~0 8))) (.cse11 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10 .cse11) (or .cse12 .cse13 .cse1 .cse14 .cse9 .cse11 .cse15) (or (and .cse3 .cse4 .cse5 .cse6 .cse7 (= ~a17~0 1)) .cse16 .cse13 .cse17 .cse1 .cse9 .cse11 .cse15) (or .cse18 .cse19 .cse1 .cse20 .cse8 .cse9 .cse10) (or .cse16 .cse0 .cse19 .cse1 .cse21 .cse22 .cse9 .cse11) (or .cse18 .cse1 .cse23 .cse8 .cse24 .cse9) (or .cse17 .cse1 .cse25 .cse21 .cse20 .cse8 .cse9 .cse15) (or .cse0 .cse17 .cse1 .cse25 .cse8 .cse20 .cse9 .cse10) (or .cse12 .cse16 .cse26 .cse19 .cse27 .cse21 .cse9) (or .cse12 .cse16 .cse0 .cse26 .cse1 .cse25 .cse21 .cse9) (or .cse12 .cse0 .cse1 .cse14 .cse21 .cse9 .cse11) (or .cse16 .cse13 .cse17 .cse1 .cse23 .cse24 .cse9 .cse15) (or .cse0 .cse1 .cse21 .cse8 .cse22 .cse9 .cse11) (or .cse12 .cse16 .cse26 .cse19 .cse9 .cse10) (or .cse16 .cse0 .cse19 .cse17 .cse1 .cse23 .cse21 .cse24 .cse9) (or .cse12 .cse26 .cse27 .cse25 .cse21 .cse8 .cse9) (or .cse16 .cse0 .cse17 .cse1 .cse25 .cse20 .cse9 .cse10) (or .cse12 .cse27 .cse14 .cse21 (= |old(~a21~0)| 1) .cse9 .cse11 (not (= 0 |old(~a17~0)|)))))) [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-21 16:34:48,387 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,388 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-21 16:34:48,389 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-21 16:34:48,390 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,394 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,394 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,394 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,394 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,394 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 16:34:48,394 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-21 16:34:48,394 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-21 16:34:48,395 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-21 16:34:48,395 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-21 16:34:48,395 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-21 16:34:48,395 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-21 16:34:48,395 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-21 16:34:48,395 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-21 16:34:48,395 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-21 16:34:48,395 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-21 16:34:48,395 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 16:34:48,396 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (<= ~a7~0 0) (= ~a20~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-21 16:34:48,396 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 16:34:48,396 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 16:34:48,396 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8))) [2020-08-21 16:34:48,396 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-21 16:34:48,397 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse12 (= ~a7~0 1))) (let ((.cse11 (= 5 ~a16~0)) (.cse6 (= ~a12~0 8)) (.cse0 (= ~a16~0 6)) (.cse7 (<= ~a7~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse14 (<= 14 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse13 (<= ~a16~0 5)) (.cse10 (= ~a17~0 1)) (.cse16 (<= ~a20~0 0)) (.cse8 (= ~a8~0 13)) (.cse9 (= ~a16~0 4)) (.cse4 (<= 1 ~a21~0)) (.cse3 (not .cse12)) (.cse15 (not .cse2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse4) (and .cse6 .cse7 .cse2 .cse9 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a8~0 |old(~a8~0)|) .cse11) (and .cse6 .cse1 .cse7 .cse2 .cse9 .cse4) (and .cse12 .cse13 .cse8 .cse2 .cse10) (and .cse14 .cse1 .cse4 .cse11) (and .cse3 .cse4 .cse11 .cse15 .cse5 .cse10) (and .cse12 .cse0 .cse1 .cse8 .cse2) (not (<= 1 |old(~a21~0)|)) (and .cse12 (= ~a20~0 |old(~a20~0)|) (not (= ~a21~0 1)) .cse8 .cse9 (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 .cse4 .cse10 .cse16 .cse5) (and .cse6 .cse1 .cse7 .cse9 .cse4 .cse16) (not .cse6) (not (<= |old(~a7~0)| 0)) (and .cse9 .cse3 .cse4 .cse15 .cse10 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse8 .cse7 .cse2 .cse4 .cse10) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse7 .cse4 .cse16 .cse5) (and .cse14 .cse13 .cse1 .cse4 .cse16) (and .cse13 .cse8 .cse10 .cse16) (and .cse8 .cse9 .cse4 .cse3 .cse15)))) [2020-08-21 16:34:48,397 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-21 16:34:48,397 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-21 16:34:48,397 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse12 (= ~a7~0 1))) (let ((.cse11 (= 5 ~a16~0)) (.cse6 (= ~a12~0 8)) (.cse0 (= ~a16~0 6)) (.cse7 (<= ~a7~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse14 (<= 14 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse13 (<= ~a16~0 5)) (.cse10 (= ~a17~0 1)) (.cse16 (<= ~a20~0 0)) (.cse8 (= ~a8~0 13)) (.cse9 (= ~a16~0 4)) (.cse4 (<= 1 ~a21~0)) (.cse3 (not .cse12)) (.cse15 (not .cse2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse4) (and .cse6 .cse7 .cse2 .cse9 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a8~0 |old(~a8~0)|) .cse11) (and .cse6 .cse1 .cse7 .cse2 .cse9 .cse4) (and .cse12 .cse13 .cse8 .cse2 .cse10) (and .cse14 .cse1 .cse4 .cse11) (and .cse3 .cse4 .cse11 .cse15 .cse5 .cse10) (and .cse12 .cse0 .cse1 .cse8 .cse2) (not (<= 1 |old(~a21~0)|)) (and .cse12 (= ~a20~0 |old(~a20~0)|) (not (= ~a21~0 1)) .cse8 .cse9 (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 .cse4 .cse10 .cse16 .cse5) (and .cse6 .cse1 .cse7 .cse9 .cse4 .cse16) (not .cse6) (not (<= |old(~a7~0)| 0)) (and .cse9 .cse3 .cse4 .cse15 .cse10 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse8 .cse7 .cse2 .cse4 .cse10) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse7 .cse4 .cse16 .cse5) (and .cse14 .cse13 .cse1 .cse4 .cse16) (and .cse13 .cse8 .cse10 .cse16) (and .cse8 .cse9 .cse4 .cse3 .cse15)))) [2020-08-21 16:34:48,397 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-21 16:34:48,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 04:34:48 BoogieIcfgContainer [2020-08-21 16:34:48,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 16:34:48,444 INFO L168 Benchmark]: Toolchain (without parser) took 46266.16 ms. Allocated memory was 148.4 MB in the beginning and 875.0 MB in the end (delta: 726.7 MB). Free memory was 102.4 MB in the beginning and 669.4 MB in the end (delta: -567.0 MB). Peak memory consumption was 698.8 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:48,444 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 16:34:48,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.33 ms. Allocated memory was 148.4 MB in the beginning and 206.6 MB in the end (delta: 58.2 MB). Free memory was 102.2 MB in the beginning and 173.1 MB in the end (delta: -70.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:48,446 INFO L168 Benchmark]: Boogie Preprocessor took 130.50 ms. Allocated memory is still 206.6 MB. Free memory was 173.1 MB in the beginning and 167.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:48,447 INFO L168 Benchmark]: RCFGBuilder took 1253.89 ms. Allocated memory was 206.6 MB in the beginning and 236.5 MB in the end (delta: 29.9 MB). Free memory was 167.7 MB in the beginning and 176.1 MB in the end (delta: -8.4 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:48,447 INFO L168 Benchmark]: TraceAbstraction took 44052.47 ms. Allocated memory was 236.5 MB in the beginning and 875.0 MB in the end (delta: 638.6 MB). Free memory was 176.1 MB in the beginning and 669.4 MB in the end (delta: -493.4 MB). Peak memory consumption was 684.3 MB. Max. memory is 7.1 GB. [2020-08-21 16:34:48,450 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 820.33 ms. Allocated memory was 148.4 MB in the beginning and 206.6 MB in the end (delta: 58.2 MB). Free memory was 102.2 MB in the beginning and 173.1 MB in the end (delta: -70.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.50 ms. Allocated memory is still 206.6 MB. Free memory was 173.1 MB in the beginning and 167.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1253.89 ms. Allocated memory was 206.6 MB in the beginning and 236.5 MB in the end (delta: 29.9 MB). Free memory was 167.7 MB in the beginning and 176.1 MB in the end (delta: -8.4 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44052.47 ms. Allocated memory was 236.5 MB in the beginning and 875.0 MB in the end (delta: 638.6 MB). Free memory was 176.1 MB in the beginning and 669.4 MB in the end (delta: -493.4 MB). Peak memory consumption was 684.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a16 == 6 && a17 <= 0) && a20 == 1) && !(a7 == 1)) && 1 <= a21) && 15 <= a8) || (((((a12 == 8 && a7 <= 0) && a8 == 13) && a20 == 1) && a16 == 4) && 1 <= a21)) || (((((a12 == 8 && a7 <= 0) && a20 == 1) && a16 == 4) && 1 <= a21) && a17 == 1)) || !(\old(a20) == 1)) || ((((a7 == \old(a7) && a17 == \old(a17)) && a21 == \old(a21)) && a8 == \old(a8)) && 5 == a16)) || (((((a12 == 8 && a17 <= 0) && a7 <= 0) && a20 == 1) && a16 == 4) && 1 <= a21)) || ((((a7 == 1 && a16 <= 5) && a8 == 13) && a20 == 1) && a17 == 1)) || (((14 <= a8 && a17 <= 0) && 1 <= a21) && 5 == a16)) || (((((!(a7 == 1) && 1 <= a21) && 5 == a16) && !(a20 == 1)) && 15 <= a8) && a17 == 1)) || ((((a7 == 1 && a16 == 6) && a17 <= 0) && a8 == 13) && a20 == 1)) || !(1 <= \old(a21))) || (((((a7 == 1 && a20 == \old(a20)) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 0)) || !(5 == \old(a16))) || (((((a16 == 6 && a7 <= 0) && 1 <= a21) && a17 == 1) && a20 <= 0) && 15 <= a8)) || (((((a12 == 8 && a17 <= 0) && a7 <= 0) && a16 == 4) && 1 <= a21) && a20 <= 0)) || !(a12 == 8)) || !(\old(a7) <= 0)) || (((((a16 == 4 && !(a7 == 1)) && 1 <= a21) && !(a20 == 1)) && a17 == 1) && 15 <= a8)) || !(\old(a17) == 1)) || (((((a16 == 6 && a8 == 13) && a7 <= 0) && a20 == 1) && 1 <= a21) && a17 == 1)) || !(15 <= \old(a8))) || (((((a16 == 6 && a17 <= 0) && a7 <= 0) && 1 <= a21) && a20 <= 0) && 15 <= a8)) || ((((14 <= a8 && a16 <= 5) && a17 <= 0) && 1 <= a21) && a20 <= 0)) || (((a16 <= 5 && a8 == 13) && a17 == 1) && a20 <= 0)) || ((((a8 == 13 && a16 == 4) && 1 <= a21) && !(a7 == 1)) && !(a20 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 37.1s, OverallIterations: 16, TraceHistogramMax: 7, AutomataDifference: 28.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 487 SDtfs, 10981 SDslu, 677 SDs, 0 SdLazy, 15843 SolverSat, 2374 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 410 GetRequests, 228 SyntacticMatches, 4 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7406occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 2073 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 450 PreInvPairs, 528 NumberOfFragments, 1650 HoareAnnotationTreeSize, 450 FomulaSimplifications, 157403 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 33192 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 3774 NumberOfCodeBlocks, 3774 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3758 ConstructedInterpolants, 0 QuantifiedInterpolants, 2788865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 3698/3974 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...