/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:23:17,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:23:17,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:23:17,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:23:17,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:23:17,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:23:17,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:23:17,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:23:17,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:23:17,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:23:17,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:23:17,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:23:17,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:23:17,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:23:17,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:23:17,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:23:17,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:23:17,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:23:17,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:23:17,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:23:17,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:23:17,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:23:17,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:23:17,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:23:17,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 13:23:17,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:23:17,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:23:17,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:23:17,633 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 13:23:17,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:23:17,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:23:17,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:23:17,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:23:17,656 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:23:17,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:23:17,657 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:23:17,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:23:17,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:23:17,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:23:17,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:23:17,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:23:17,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:23:17,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:23:17,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:23:17,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:23:17,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:23:17,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:23:17,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:23:17,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:23:17,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:23:17,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:23:17,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:23:17,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:23:17,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:23:17,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:23:17,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:23:17,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:23:17,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:23:17,661 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 -> false [2020-08-21 13:23:17,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:23:17,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:23:17,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:23:17,971 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:23:17,972 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:23:17,973 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-08-21 13:23:18,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19b90aab1/053589219ece4521a56b840da2cac9e9/FLAG28a3d9367 [2020-08-21 13:23:18,669 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:23:18,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-08-21 13:23:18,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19b90aab1/053589219ece4521a56b840da2cac9e9/FLAG28a3d9367 [2020-08-21 13:23:18,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19b90aab1/053589219ece4521a56b840da2cac9e9 [2020-08-21 13:23:18,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:23:18,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:23:18,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:23:18,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:23:18,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:23:18,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:23:18" (1/1) ... [2020-08-21 13:23:18,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:18, skipping insertion in model container [2020-08-21 13:23:18,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:23:18" (1/1) ... [2020-08-21 13:23:18,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:23:19,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:23:19,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:23:19,546 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:23:19,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:23:19,695 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:23:19,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19 WrapperNode [2020-08-21 13:23:19,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:23:19,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:23:19,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:23:19,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:23:19,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19" (1/1) ... [2020-08-21 13:23:19,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19" (1/1) ... [2020-08-21 13:23:19,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19" (1/1) ... [2020-08-21 13:23:19,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19" (1/1) ... [2020-08-21 13:23:19,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19" (1/1) ... [2020-08-21 13:23:19,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19" (1/1) ... [2020-08-21 13:23:19,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19" (1/1) ... [2020-08-21 13:23:19,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:23:19,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:23:19,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:23:19,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:23:19,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19" (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 13:23:19,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:23:19,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:23:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 13:23:19,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:23:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 13:23:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:23:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:23:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 13:23:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:23:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:23:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:23:21,318 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:23:21,319 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 13:23:21,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:23:21 BoogieIcfgContainer [2020-08-21 13:23:21,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:23:21,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:23:21,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:23:21,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:23:21,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:23:18" (1/3) ... [2020-08-21 13:23:21,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf245b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:23:21, skipping insertion in model container [2020-08-21 13:23:21,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:23:19" (2/3) ... [2020-08-21 13:23:21,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf245b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:23:21, skipping insertion in model container [2020-08-21 13:23:21,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:23:21" (3/3) ... [2020-08-21 13:23:21,340 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label40.c [2020-08-21 13:23:21,350 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:23:21,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:23:21,375 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:23:21,407 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:23:21,407 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:23:21,407 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:23:21,407 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:23:21,408 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:23:21,408 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:23:21,408 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:23:21,408 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:23:21,430 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-21 13:23:21,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-08-21 13:23:21,439 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:21,440 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] [2020-08-21 13:23:21,440 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:21,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:21,445 INFO L82 PathProgramCache]: Analyzing trace with hash -576444522, now seen corresponding path program 1 times [2020-08-21 13:23:21,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:21,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677051633] [2020-08-21 13:23:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:21,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:21,785 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 13:23:21,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677051633] [2020-08-21 13:23:21,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:23:21,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 13:23:21,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421962470] [2020-08-21 13:23:21,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 13:23:21,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:21,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 13:23:21,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:23:21,814 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-08-21 13:23:24,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:24,075 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-08-21 13:23:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 13:23:24,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-08-21 13:23:24,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:24,099 INFO L225 Difference]: With dead ends: 730 [2020-08-21 13:23:24,099 INFO L226 Difference]: Without dead ends: 447 [2020-08-21 13:23:24,107 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 13:23:24,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-21 13:23:24,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-08-21 13:23:24,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-21 13:23:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-08-21 13:23:24,201 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 55 [2020-08-21 13:23:24,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:24,202 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-08-21 13:23:24,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 13:23:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-08-21 13:23:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-21 13:23:24,209 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:24,209 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:23:24,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:23:24,210 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:24,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:24,211 INFO L82 PathProgramCache]: Analyzing trace with hash -913027315, now seen corresponding path program 1 times [2020-08-21 13:23:24,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:24,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278707464] [2020-08-21 13:23:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:24,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:24,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:24,507 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:23:24,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278707464] [2020-08-21 13:23:24,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:23:24,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 13:23:24,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360239465] [2020-08-21 13:23:24,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:23:24,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:24,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:23:24,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:23:24,512 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-08-21 13:23:26,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:26,102 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-08-21 13:23:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 13:23:26,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2020-08-21 13:23:26,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:26,109 INFO L225 Difference]: With dead ends: 1041 [2020-08-21 13:23:26,109 INFO L226 Difference]: Without dead ends: 606 [2020-08-21 13:23:26,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:23:26,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-08-21 13:23:26,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-08-21 13:23:26,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-08-21 13:23:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-08-21 13:23:26,154 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 128 [2020-08-21 13:23:26,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:26,155 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-08-21 13:23:26,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:23:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-08-21 13:23:26,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-08-21 13:23:26,160 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:26,160 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:23:26,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:23:26,161 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:26,161 INFO L82 PathProgramCache]: Analyzing trace with hash 952189433, now seen corresponding path program 1 times [2020-08-21 13:23:26,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:26,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428791260] [2020-08-21 13:23:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:26,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:26,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:26,508 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 31 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:23:26,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428791260] [2020-08-21 13:23:26,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:26,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 13:23:26,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019164244] [2020-08-21 13:23:26,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:23:26,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:26,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:23:26,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:23:26,519 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 8 states. [2020-08-21 13:23:28,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:28,368 INFO L93 Difference]: Finished difference Result 1823 states and 2680 transitions. [2020-08-21 13:23:28,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 13:23:28,370 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 134 [2020-08-21 13:23:28,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:28,389 INFO L225 Difference]: With dead ends: 1823 [2020-08-21 13:23:28,389 INFO L226 Difference]: Without dead ends: 1210 [2020-08-21 13:23:28,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:23:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-08-21 13:23:28,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1035. [2020-08-21 13:23:28,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-08-21 13:23:28,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1482 transitions. [2020-08-21 13:23:28,508 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1482 transitions. Word has length 134 [2020-08-21 13:23:28,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:28,509 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1482 transitions. [2020-08-21 13:23:28,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:23:28,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1482 transitions. [2020-08-21 13:23:28,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-08-21 13:23:28,515 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:28,515 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:23:28,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:23:28,516 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:28,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:28,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1800499558, now seen corresponding path program 1 times [2020-08-21 13:23:28,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:28,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825654795] [2020-08-21 13:23:28,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:28,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:28,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:28,764 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:23:28,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825654795] [2020-08-21 13:23:28,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:23:28,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 13:23:28,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475811812] [2020-08-21 13:23:28,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 13:23:28,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:28,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 13:23:28,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 13:23:28,770 INFO L87 Difference]: Start difference. First operand 1035 states and 1482 transitions. Second operand 7 states. [2020-08-21 13:23:30,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:30,179 INFO L93 Difference]: Finished difference Result 2666 states and 3891 transitions. [2020-08-21 13:23:30,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 13:23:30,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-08-21 13:23:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:30,194 INFO L225 Difference]: With dead ends: 2666 [2020-08-21 13:23:30,194 INFO L226 Difference]: Without dead ends: 1637 [2020-08-21 13:23:30,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-21 13:23:30,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2020-08-21 13:23:30,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1484. [2020-08-21 13:23:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1484 states. [2020-08-21 13:23:30,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 2105 transitions. [2020-08-21 13:23:30,270 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 2105 transitions. Word has length 145 [2020-08-21 13:23:30,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:30,271 INFO L479 AbstractCegarLoop]: Abstraction has 1484 states and 2105 transitions. [2020-08-21 13:23:30,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 13:23:30,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 2105 transitions. [2020-08-21 13:23:30,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-21 13:23:30,277 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:30,278 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:23:30,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:23:30,278 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:30,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:30,279 INFO L82 PathProgramCache]: Analyzing trace with hash -296475546, now seen corresponding path program 1 times [2020-08-21 13:23:30,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:30,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345965716] [2020-08-21 13:23:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:30,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:30,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:23:30,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345965716] [2020-08-21 13:23:30,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:23:30,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 13:23:30,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218991199] [2020-08-21 13:23:30,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:23:30,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:30,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:23:30,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:23:30,572 INFO L87 Difference]: Start difference. First operand 1484 states and 2105 transitions. Second operand 8 states. [2020-08-21 13:23:32,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:32,649 INFO L93 Difference]: Finished difference Result 4289 states and 6334 transitions. [2020-08-21 13:23:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 13:23:32,654 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 167 [2020-08-21 13:23:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:32,671 INFO L225 Difference]: With dead ends: 4289 [2020-08-21 13:23:32,672 INFO L226 Difference]: Without dead ends: 2954 [2020-08-21 13:23:32,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-08-21 13:23:32,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2020-08-21 13:23:32,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2658. [2020-08-21 13:23:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2658 states. [2020-08-21 13:23:32,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 3652 transitions. [2020-08-21 13:23:32,802 INFO L78 Accepts]: Start accepts. Automaton has 2658 states and 3652 transitions. Word has length 167 [2020-08-21 13:23:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:32,802 INFO L479 AbstractCegarLoop]: Abstraction has 2658 states and 3652 transitions. [2020-08-21 13:23:32,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:23:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand 2658 states and 3652 transitions. [2020-08-21 13:23:32,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-21 13:23:32,806 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:32,807 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:23:32,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:23:32,808 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:32,808 INFO L82 PathProgramCache]: Analyzing trace with hash 528848677, now seen corresponding path program 1 times [2020-08-21 13:23:32,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:32,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [851725765] [2020-08-21 13:23:32,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:32,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:32,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:23:33,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [851725765] [2020-08-21 13:23:33,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:23:33,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 13:23:33,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630614768] [2020-08-21 13:23:33,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 13:23:33,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:33,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 13:23:33,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 13:23:33,040 INFO L87 Difference]: Start difference. First operand 2658 states and 3652 transitions. Second operand 7 states. [2020-08-21 13:23:34,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:34,440 INFO L93 Difference]: Finished difference Result 5471 states and 7542 transitions. [2020-08-21 13:23:34,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 13:23:34,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-08-21 13:23:34,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:34,471 INFO L225 Difference]: With dead ends: 5471 [2020-08-21 13:23:34,471 INFO L226 Difference]: Without dead ends: 2819 [2020-08-21 13:23:34,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-21 13:23:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2020-08-21 13:23:34,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2803. [2020-08-21 13:23:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2803 states. [2020-08-21 13:23:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3806 transitions. [2020-08-21 13:23:34,573 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3806 transitions. Word has length 172 [2020-08-21 13:23:34,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:34,574 INFO L479 AbstractCegarLoop]: Abstraction has 2803 states and 3806 transitions. [2020-08-21 13:23:34,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 13:23:34,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3806 transitions. [2020-08-21 13:23:34,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-08-21 13:23:34,579 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:34,579 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 13:23:34,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 13:23:34,580 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:34,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:34,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1554258013, now seen corresponding path program 1 times [2020-08-21 13:23:34,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:34,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209256191] [2020-08-21 13:23:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:34,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:34,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:34,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 13:23:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 160 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 13:23:34,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209256191] [2020-08-21 13:23:34,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:34,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 13:23:34,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563205521] [2020-08-21 13:23:34,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 13:23:34,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:34,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 13:23:34,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-21 13:23:34,865 INFO L87 Difference]: Start difference. First operand 2803 states and 3806 transitions. Second operand 10 states. [2020-08-21 13:23:39,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:39,053 INFO L93 Difference]: Finished difference Result 6484 states and 8887 transitions. [2020-08-21 13:23:39,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-21 13:23:39,054 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2020-08-21 13:23:39,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:39,073 INFO L225 Difference]: With dead ends: 6484 [2020-08-21 13:23:39,073 INFO L226 Difference]: Without dead ends: 3830 [2020-08-21 13:23:39,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2020-08-21 13:23:39,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2020-08-21 13:23:39,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 2672. [2020-08-21 13:23:39,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2672 states. [2020-08-21 13:23:39,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 3350 transitions. [2020-08-21 13:23:39,180 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 3350 transitions. Word has length 204 [2020-08-21 13:23:39,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:39,181 INFO L479 AbstractCegarLoop]: Abstraction has 2672 states and 3350 transitions. [2020-08-21 13:23:39,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 13:23:39,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 3350 transitions. [2020-08-21 13:23:39,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-08-21 13:23:39,186 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:39,186 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 13:23:39,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 13:23:39,187 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:39,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:39,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1123243390, now seen corresponding path program 1 times [2020-08-21 13:23:39,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:39,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445564689] [2020-08-21 13:23:39,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:39,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:39,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:39,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 13:23:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-08-21 13:23:39,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445564689] [2020-08-21 13:23:39,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:39,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 13:23:39,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147241974] [2020-08-21 13:23:39,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 13:23:39,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:39,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 13:23:39,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:23:39,405 INFO L87 Difference]: Start difference. First operand 2672 states and 3350 transitions. Second operand 5 states. [2020-08-21 13:23:40,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:40,699 INFO L93 Difference]: Finished difference Result 6067 states and 7726 transitions. [2020-08-21 13:23:40,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 13:23:40,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-08-21 13:23:40,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:40,724 INFO L225 Difference]: With dead ends: 6067 [2020-08-21 13:23:40,724 INFO L226 Difference]: Without dead ends: 3544 [2020-08-21 13:23:40,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 13:23:40,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2020-08-21 13:23:40,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3111. [2020-08-21 13:23:40,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3111 states. [2020-08-21 13:23:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 3989 transitions. [2020-08-21 13:23:40,828 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 3989 transitions. Word has length 237 [2020-08-21 13:23:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:40,829 INFO L479 AbstractCegarLoop]: Abstraction has 3111 states and 3989 transitions. [2020-08-21 13:23:40,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 13:23:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 3989 transitions. [2020-08-21 13:23:40,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-08-21 13:23:40,839 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:40,839 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 13:23:40,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 13:23:40,840 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:40,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:40,841 INFO L82 PathProgramCache]: Analyzing trace with hash 253048858, now seen corresponding path program 1 times [2020-08-21 13:23:40,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:40,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241429626] [2020-08-21 13:23:40,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:40,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:41,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:41,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 13:23:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:41,562 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 177 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 13:23:41,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241429626] [2020-08-21 13:23:41,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:41,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 13:23:41,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067819684] [2020-08-21 13:23:41,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 13:23:41,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:41,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 13:23:41,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-08-21 13:23:41,572 INFO L87 Difference]: Start difference. First operand 3111 states and 3989 transitions. Second operand 11 states. [2020-08-21 13:23:44,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:44,893 INFO L93 Difference]: Finished difference Result 6240 states and 8085 transitions. [2020-08-21 13:23:44,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 13:23:44,895 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 287 [2020-08-21 13:23:44,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:44,909 INFO L225 Difference]: With dead ends: 6240 [2020-08-21 13:23:44,909 INFO L226 Difference]: Without dead ends: 3278 [2020-08-21 13:23:44,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2020-08-21 13:23:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2020-08-21 13:23:44,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3256. [2020-08-21 13:23:44,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3256 states. [2020-08-21 13:23:45,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 4141 transitions. [2020-08-21 13:23:45,002 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 4141 transitions. Word has length 287 [2020-08-21 13:23:45,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:45,002 INFO L479 AbstractCegarLoop]: Abstraction has 3256 states and 4141 transitions. [2020-08-21 13:23:45,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 13:23:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 4141 transitions. [2020-08-21 13:23:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-08-21 13:23:45,012 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:45,015 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 13:23:45,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 13:23:45,016 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:45,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:45,016 INFO L82 PathProgramCache]: Analyzing trace with hash 273888777, now seen corresponding path program 1 times [2020-08-21 13:23:45,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:45,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588158146] [2020-08-21 13:23:45,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:45,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:45,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:45,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-21 13:23:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:45,385 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-08-21 13:23:45,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588158146] [2020-08-21 13:23:45,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:45,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 13:23:45,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492944077] [2020-08-21 13:23:45,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 13:23:45,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:45,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 13:23:45,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:23:45,388 INFO L87 Difference]: Start difference. First operand 3256 states and 4141 transitions. Second operand 5 states. [2020-08-21 13:23:46,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:46,645 INFO L93 Difference]: Finished difference Result 6653 states and 8488 transitions. [2020-08-21 13:23:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 13:23:46,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 306 [2020-08-21 13:23:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:46,647 INFO L225 Difference]: With dead ends: 6653 [2020-08-21 13:23:46,647 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 13:23:46,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 13:23:46,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 13:23:46,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 13:23:46,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 13:23:46,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 13:23:46,660 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2020-08-21 13:23:46,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:46,661 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 13:23:46,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 13:23:46,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 13:23:46,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 13:23:46,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 13:23:46,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 13:23:47,094 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 134 [2020-08-21 13:23:47,225 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 134 [2020-08-21 13:23:47,946 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 39 [2020-08-21 13:23:48,545 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 54 [2020-08-21 13:23:49,114 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 54 [2020-08-21 13:23:49,119 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:23:49,120 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-08-21 13:23:49,120 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:23:49,120 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-21 13:23:49,120 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,120 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,120 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,121 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,121 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,121 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,121 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-21 13:23:49,121 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-21 13:23:49,121 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-21 13:23:49,121 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-21 13:23:49,122 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-21 13:23:49,122 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-21 13:23:49,122 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-21 13:23:49,122 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-21 13:23:49,122 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-21 13:23:49,122 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-21 13:23:49,123 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-21 13:23:49,123 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,123 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,123 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,123 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,123 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,123 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-21 13:23:49,123 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-21 13:23:49,124 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-21 13:23:49,125 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-21 13:23:49,125 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2020-08-21 13:23:49,125 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-21 13:23:49,125 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,125 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,125 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,125 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,125 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,126 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-21 13:23:49,126 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-21 13:23:49,126 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-21 13:23:49,126 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-21 13:23:49,126 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-21 13:23:49,126 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-21 13:23:49,126 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-21 13:23:49,126 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-21 13:23:49,127 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-21 13:23:49,127 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-21 13:23:49,127 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,127 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,127 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,127 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,127 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,127 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-21 13:23:49,128 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-21 13:23:49,128 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-21 13:23:49,128 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-21 13:23:49,128 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-21 13:23:49,128 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-21 13:23:49,128 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-21 13:23:49,128 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-21 13:23:49,129 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-21 13:23:49,129 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-21 13:23:49,129 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-21 13:23:49,129 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-21 13:23:49,129 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-21 13:23:49,129 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,129 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,129 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-21 13:23:49,130 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-21 13:23:49,131 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,132 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-21 13:23:49,133 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,134 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-21 13:23:49,135 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-21 13:23:49,136 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a19~0)| 9))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse2 (= 2 |old(~a10~0)|))) (and (or .cse0 (not (<= 2 |old(~a10~0)|)) .cse1) (or .cse0 .cse1 (= 8 |old(~a19~0)|)) (or .cse0 (not (= 14 ~a4~0)) .cse2 (not (<= 41 |old(~a1~0)|)) (not (= ~a12~0 0))) (or (not (<= 9 |old(~a19~0)|)) .cse0 .cse2))) [2020-08-21 13:23:49,136 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-21 13:23:49,136 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-21 13:23:49,136 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-21 13:23:49,136 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,136 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-21 13:23:49,137 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,138 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-21 13:23:49,139 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-21 13:23:49,140 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-21 13:23:49,141 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-21 13:23:49,141 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-21 13:23:49,141 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-21 13:23:49,141 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-21 13:23:49,141 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-21 13:23:49,141 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-21 13:23:49,141 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-21 13:23:49,142 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:23:49,142 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= ~a4~0 14) (<= 23 ~a1~0) (<= 9 ~a19~0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-08-21 13:23:49,142 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 13:23:49,142 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:23:49,142 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-08-21 13:23:49,142 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-21 13:23:49,143 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (= ~a19~0 8)) (.cse2 (<= ~a19~0 9)) (.cse0 (= 0 |old(~a10~0)|))) (or (and (<= 9 ~a19~0) (not (= ~a10~0 2)) .cse0) (and .cse1 (= ~a10~0 1) (<= 331505 ~a1~0)) (and (not .cse1) .cse2 .cse0) (and (<= 41 ~a1~0) .cse2 .cse0) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and .cse2 (<= 2 ~a10~0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-08-21 13:23:49,143 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-21 13:23:49,143 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-21 13:23:49,143 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (= ~a19~0 8)) (.cse2 (<= ~a19~0 9)) (.cse0 (= 0 |old(~a10~0)|))) (or (and (<= 9 ~a19~0) (not (= ~a10~0 2)) .cse0) (and .cse1 (= ~a10~0 1) (<= 331505 ~a1~0)) (and (not .cse1) .cse2 .cse0) (and (<= 41 ~a1~0) .cse2 .cse0) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (and .cse2 (<= 2 ~a10~0) .cse0) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-08-21 13:23:49,143 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-21 13:23:49,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:23:49 BoogieIcfgContainer [2020-08-21 13:23:49,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:23:49,174 INFO L168 Benchmark]: Toolchain (without parser) took 30240.05 ms. Allocated memory was 140.0 MB in the beginning and 584.1 MB in the end (delta: 444.1 MB). Free memory was 101.3 MB in the beginning and 389.5 MB in the end (delta: -288.2 MB). Peak memory consumption was 420.8 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:49,175 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-21 13:23:49,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.47 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 170.2 MB in the end (delta: -69.2 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:49,178 INFO L168 Benchmark]: Boogie Preprocessor took 158.70 ms. Allocated memory is still 204.5 MB. Free memory was 170.2 MB in the beginning and 166.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:49,179 INFO L168 Benchmark]: RCFGBuilder took 1473.18 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 180.0 MB in the end (delta: -13.9 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:49,180 INFO L168 Benchmark]: TraceAbstraction took 27840.01 ms. Allocated memory was 237.5 MB in the beginning and 584.1 MB in the end (delta: 346.6 MB). Free memory was 180.0 MB in the beginning and 389.5 MB in the end (delta: -209.5 MB). Peak memory consumption was 402.0 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:49,185 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.47 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.1 MB in the beginning and 170.2 MB in the end (delta: -69.2 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.70 ms. Allocated memory is still 204.5 MB. Free memory was 170.2 MB in the beginning and 166.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1473.18 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.0 MB in the beginning and 180.0 MB in the end (delta: -13.9 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27840.01 ms. Allocated memory was 237.5 MB in the beginning and 584.1 MB in the end (delta: 346.6 MB). Free memory was 180.0 MB in the beginning and 389.5 MB in the end (delta: -209.5 MB). Peak memory consumption was 402.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((((((9 <= a19 && !(a10 == 2)) && 0 == \old(a10)) || ((a19 == 8 && a10 == 1) && 331505 <= a1)) || ((!(a19 == 8) && a19 <= 9) && 0 == \old(a10))) || ((41 <= a1 && a19 <= 9) && 0 == \old(a10))) || !(a12 == 0)) || !(23 <= \old(a1))) || ((a19 <= 9 && 2 <= a10) && 0 == \old(a10))) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (((23 <= a1 && a1 <= 23) && a19 == \old(a19)) && a10 == \old(a10))) || !(\old(a1) <= 23)) || !(14 == a4)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.2s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 296 SDtfs, 5329 SDslu, 456 SDs, 0 SdLazy, 13197 SolverSat, 1786 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3256occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 2273 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 150 PreInvPairs, 202 NumberOfFragments, 369 HoareAnnotationTreeSize, 150 FomulaSimplifications, 45424 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9819 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1835 NumberOfCodeBlocks, 1835 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1825 ConstructedInterpolants, 0 QuantifiedInterpolants, 1234508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 937/996 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...