/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 23:33:44,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 23:33:44,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 23:33:44,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-18 23:33:44,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:33:44,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:33:44,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:33:45,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:33:45,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:33:45,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:33:45,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:33:45,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:33:45,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:33:45,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:33:45,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:33:45,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:33:45,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 23:33:45,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 23:33:45,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 23:33:45,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 23:33:45,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 23:33:45,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:33:45,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:33:45,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:33:45,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:33:45,056 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:33:45,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:33:45,056 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 23:33:45,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:33:45,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 23:33:45,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:33:45,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:33:45,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:33:45,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:33:45,058 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 23:33:45,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:33:45,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:33:45,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:33:45,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:33:45,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:33:45,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:33:45,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:33:45,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:33:45,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:33:45,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:33:45,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:33:45,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:33:45,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:33:45,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:33:45,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:33:45,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-18 23:33:45,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:33:45,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:33:45,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:33:45,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:33:45,386 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:33:45,387 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-08-18 23:33:45,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0dde1ecf7/8ab20cf5d6d945d99f64cf432526a45d/FLAGa8c29e589 [2020-08-18 23:33:46,030 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:33:46,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-08-18 23:33:46,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0dde1ecf7/8ab20cf5d6d945d99f64cf432526a45d/FLAGa8c29e589 [2020-08-18 23:33:46,329 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0dde1ecf7/8ab20cf5d6d945d99f64cf432526a45d [2020-08-18 23:33:46,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:33:46,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:33:46,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:33:46,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:33:46,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:33:46,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:33:46" (1/1) ... [2020-08-18 23:33:46,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54de61ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:46, skipping insertion in model container [2020-08-18 23:33:46,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:33:46" (1/1) ... [2020-08-18 23:33:46,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:33:46,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:33:47,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:33:47,037 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 23:33:47,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:33:47,181 INFO L208 MainTranslator]: Completed translation [2020-08-18 23:33:47,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47 WrapperNode [2020-08-18 23:33:47,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:33:47,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 23:33:47,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 23:33:47,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 23:33:47,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47" (1/1) ... [2020-08-18 23:33:47,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47" (1/1) ... [2020-08-18 23:33:47,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47" (1/1) ... [2020-08-18 23:33:47,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47" (1/1) ... [2020-08-18 23:33:47,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47" (1/1) ... [2020-08-18 23:33:47,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47" (1/1) ... [2020-08-18 23:33:47,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47" (1/1) ... [2020-08-18 23:33:47,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 23:33:47,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 23:33:47,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 23:33:47,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 23:33:47,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:33:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 23:33:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 23:33:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 23:33:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 23:33:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 23:33:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 23:33:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 23:33:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 23:33:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 23:33:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 23:33:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 23:33:48,630 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 23:33:48,630 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 23:33:48,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:33:48 BoogieIcfgContainer [2020-08-18 23:33:48,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 23:33:48,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 23:33:48,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 23:33:48,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 23:33:48,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:33:46" (1/3) ... [2020-08-18 23:33:48,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146ebc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:33:48, skipping insertion in model container [2020-08-18 23:33:48,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:33:47" (2/3) ... [2020-08-18 23:33:48,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146ebc30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:33:48, skipping insertion in model container [2020-08-18 23:33:48,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:33:48" (3/3) ... [2020-08-18 23:33:48,646 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-08-18 23:33:48,656 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 23:33:48,664 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 23:33:48,679 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 23:33:48,707 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 23:33:48,707 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 23:33:48,707 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 23:33:48,707 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 23:33:48,707 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 23:33:48,708 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 23:33:48,708 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 23:33:48,708 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 23:33:48,733 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-18 23:33:48,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-08-18 23:33:48,745 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:33:48,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:33:48,747 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:33:48,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:33:48,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1414431897, now seen corresponding path program 1 times [2020-08-18 23:33:48,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:33:48,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263535596] [2020-08-18 23:33:48,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:33:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:49,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:33:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:49,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:33:49,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263535596] [2020-08-18 23:33:49,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:33:49,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 23:33:49,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738436946] [2020-08-18 23:33:49,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 23:33:49,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:33:49,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 23:33:49,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 23:33:49,422 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-18 23:33:50,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:33:50,996 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-08-18 23:33:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 23:33:51,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-08-18 23:33:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:33:51,029 INFO L225 Difference]: With dead ends: 557 [2020-08-18 23:33:51,029 INFO L226 Difference]: Without dead ends: 286 [2020-08-18 23:33:51,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 23:33:51,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-08-18 23:33:51,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-08-18 23:33:51,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-18 23:33:51,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-08-18 23:33:51,119 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 109 [2020-08-18 23:33:51,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:33:51,120 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-08-18 23:33:51,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 23:33:51,121 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-08-18 23:33:51,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-08-18 23:33:51,125 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:33:51,125 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:33:51,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 23:33:51,126 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:33:51,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:33:51,126 INFO L82 PathProgramCache]: Analyzing trace with hash -609512656, now seen corresponding path program 1 times [2020-08-18 23:33:51,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:33:51,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836208927] [2020-08-18 23:33:51,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:33:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:51,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:33:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:51,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:33:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:51,325 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:33:51,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836208927] [2020-08-18 23:33:51,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:33:51,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 23:33:51,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930500126] [2020-08-18 23:33:51,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 23:33:51,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:33:51,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 23:33:51,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:33:51,331 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-08-18 23:33:52,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:33:52,766 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-08-18 23:33:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 23:33:52,767 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-08-18 23:33:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:33:52,772 INFO L225 Difference]: With dead ends: 713 [2020-08-18 23:33:52,772 INFO L226 Difference]: Without dead ends: 439 [2020-08-18 23:33:52,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-18 23:33:52,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-08-18 23:33:52,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-08-18 23:33:52,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-08-18 23:33:52,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-08-18 23:33:52,813 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 119 [2020-08-18 23:33:52,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:33:52,814 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-08-18 23:33:52,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 23:33:52,814 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-08-18 23:33:52,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-08-18 23:33:52,818 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:33:52,818 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:33:52,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 23:33:52,819 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:33:52,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:33:52,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1252784430, now seen corresponding path program 1 times [2020-08-18 23:33:52,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:33:52,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694366133] [2020-08-18 23:33:52,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:33:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:53,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:33:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:53,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:33:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:53,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:33:53,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694366133] [2020-08-18 23:33:53,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:33:53,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 23:33:53,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885136558] [2020-08-18 23:33:53,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 23:33:53,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:33:53,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 23:33:53,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 23:33:53,188 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 6 states. [2020-08-18 23:33:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:33:54,417 INFO L93 Difference]: Finished difference Result 945 states and 1358 transitions. [2020-08-18 23:33:54,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 23:33:54,419 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2020-08-18 23:33:54,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:33:54,424 INFO L225 Difference]: With dead ends: 945 [2020-08-18 23:33:54,424 INFO L226 Difference]: Without dead ends: 427 [2020-08-18 23:33:54,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:33:54,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-18 23:33:54,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-08-18 23:33:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-18 23:33:54,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 552 transitions. [2020-08-18 23:33:54,454 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 552 transitions. Word has length 120 [2020-08-18 23:33:54,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:33:54,455 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 552 transitions. [2020-08-18 23:33:54,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 23:33:54,455 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 552 transitions. [2020-08-18 23:33:54,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-08-18 23:33:54,458 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:33:54,458 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:33:54,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 23:33:54,459 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:33:54,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:33:54,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1134301708, now seen corresponding path program 1 times [2020-08-18 23:33:54,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:33:54,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552883566] [2020-08-18 23:33:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:33:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:54,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:33:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:54,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:33:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:33:54,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552883566] [2020-08-18 23:33:54,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:33:54,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 23:33:54,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869106343] [2020-08-18 23:33:54,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 23:33:54,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:33:54,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 23:33:54,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-18 23:33:54,860 INFO L87 Difference]: Start difference. First operand 419 states and 552 transitions. Second operand 7 states. [2020-08-18 23:33:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:33:55,949 INFO L93 Difference]: Finished difference Result 924 states and 1249 transitions. [2020-08-18 23:33:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 23:33:55,950 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-08-18 23:33:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:33:55,958 INFO L225 Difference]: With dead ends: 924 [2020-08-18 23:33:55,958 INFO L226 Difference]: Without dead ends: 427 [2020-08-18 23:33:55,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-18 23:33:55,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-18 23:33:56,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-08-18 23:33:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-18 23:33:56,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 549 transitions. [2020-08-18 23:33:56,019 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 549 transitions. Word has length 121 [2020-08-18 23:33:56,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:33:56,019 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 549 transitions. [2020-08-18 23:33:56,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 23:33:56,019 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 549 transitions. [2020-08-18 23:33:56,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-08-18 23:33:56,031 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:33:56,032 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:33:56,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 23:33:56,032 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:33:56,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:33:56,036 INFO L82 PathProgramCache]: Analyzing trace with hash 107820154, now seen corresponding path program 1 times [2020-08-18 23:33:56,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:33:56,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112923120] [2020-08-18 23:33:56,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:33:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:56,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:33:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:56,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:33:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:33:56,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112923120] [2020-08-18 23:33:56,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:33:56,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 23:33:56,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8846664] [2020-08-18 23:33:56,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 23:33:56,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:33:56,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 23:33:56,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 23:33:56,310 INFO L87 Difference]: Start difference. First operand 419 states and 549 transitions. Second operand 6 states. [2020-08-18 23:33:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:33:57,845 INFO L93 Difference]: Finished difference Result 1666 states and 2256 transitions. [2020-08-18 23:33:57,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 23:33:57,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2020-08-18 23:33:57,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:33:57,854 INFO L225 Difference]: With dead ends: 1666 [2020-08-18 23:33:57,854 INFO L226 Difference]: Without dead ends: 1253 [2020-08-18 23:33:57,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:33:57,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-08-18 23:33:57,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1245. [2020-08-18 23:33:57,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-08-18 23:33:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1558 transitions. [2020-08-18 23:33:57,910 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1558 transitions. Word has length 126 [2020-08-18 23:33:57,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:33:57,911 INFO L479 AbstractCegarLoop]: Abstraction has 1245 states and 1558 transitions. [2020-08-18 23:33:57,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 23:33:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1558 transitions. [2020-08-18 23:33:57,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-08-18 23:33:57,917 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:33:57,917 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:33:57,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 23:33:57,917 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:33:57,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:33:57,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1185649201, now seen corresponding path program 1 times [2020-08-18 23:33:57,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:33:57,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456373741] [2020-08-18 23:33:57,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:33:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:58,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:33:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:58,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:33:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:58,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 23:33:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 23:33:58,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456373741] [2020-08-18 23:33:58,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:33:58,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 23:33:58,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715337849] [2020-08-18 23:33:58,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 23:33:58,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:33:58,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 23:33:58,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 23:33:58,094 INFO L87 Difference]: Start difference. First operand 1245 states and 1558 transitions. Second operand 7 states. [2020-08-18 23:33:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:33:59,375 INFO L93 Difference]: Finished difference Result 3211 states and 4144 transitions. [2020-08-18 23:33:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 23:33:59,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-08-18 23:33:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:33:59,400 INFO L225 Difference]: With dead ends: 3211 [2020-08-18 23:33:59,400 INFO L226 Difference]: Without dead ends: 1972 [2020-08-18 23:33:59,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 23:33:59,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2020-08-18 23:33:59,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1680. [2020-08-18 23:33:59,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-08-18 23:33:59,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2085 transitions. [2020-08-18 23:33:59,526 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2085 transitions. Word has length 142 [2020-08-18 23:33:59,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:33:59,527 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2085 transitions. [2020-08-18 23:33:59,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 23:33:59,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2085 transitions. [2020-08-18 23:33:59,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-18 23:33:59,533 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:33:59,534 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:33:59,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 23:33:59,534 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:33:59,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:33:59,535 INFO L82 PathProgramCache]: Analyzing trace with hash 720782619, now seen corresponding path program 1 times [2020-08-18 23:33:59,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:33:59,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880448569] [2020-08-18 23:33:59,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:33:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:59,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:33:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:59,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:33:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:59,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 23:33:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:33:59,907 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 23:33:59,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880448569] [2020-08-18 23:33:59,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:33:59,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 23:33:59,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607548719] [2020-08-18 23:33:59,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 23:33:59,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:33:59,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 23:33:59,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 23:33:59,912 INFO L87 Difference]: Start difference. First operand 1680 states and 2085 transitions. Second operand 7 states. [2020-08-18 23:34:01,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:34:01,183 INFO L93 Difference]: Finished difference Result 3930 states and 4892 transitions. [2020-08-18 23:34:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 23:34:01,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2020-08-18 23:34:01,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:34:01,197 INFO L225 Difference]: With dead ends: 3930 [2020-08-18 23:34:01,197 INFO L226 Difference]: Without dead ends: 2256 [2020-08-18 23:34:01,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-18 23:34:01,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2020-08-18 23:34:01,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2246. [2020-08-18 23:34:01,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-08-18 23:34:01,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2719 transitions. [2020-08-18 23:34:01,279 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2719 transitions. Word has length 149 [2020-08-18 23:34:01,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:34:01,279 INFO L479 AbstractCegarLoop]: Abstraction has 2246 states and 2719 transitions. [2020-08-18 23:34:01,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 23:34:01,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2719 transitions. [2020-08-18 23:34:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-18 23:34:01,288 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:34:01,288 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:34:01,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 23:34:01,289 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:34:01,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:34:01,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1844712986, now seen corresponding path program 1 times [2020-08-18 23:34:01,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:34:01,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572726830] [2020-08-18 23:34:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:34:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:01,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:34:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:01,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:34:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:01,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 23:34:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:01,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 23:34:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 92 proven. 14 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-08-18 23:34:01,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572726830] [2020-08-18 23:34:01,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:34:01,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 23:34:01,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835252512] [2020-08-18 23:34:01,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 23:34:01,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:34:01,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 23:34:01,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 23:34:01,563 INFO L87 Difference]: Start difference. First operand 2246 states and 2719 transitions. Second operand 7 states. [2020-08-18 23:34:02,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:34:02,826 INFO L93 Difference]: Finished difference Result 5203 states and 6434 transitions. [2020-08-18 23:34:02,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 23:34:02,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-08-18 23:34:02,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:34:02,847 INFO L225 Difference]: With dead ends: 5203 [2020-08-18 23:34:02,848 INFO L226 Difference]: Without dead ends: 3098 [2020-08-18 23:34:02,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 23:34:02,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2020-08-18 23:34:02,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 2669. [2020-08-18 23:34:02,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2020-08-18 23:34:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3178 transitions. [2020-08-18 23:34:02,956 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3178 transitions. Word has length 194 [2020-08-18 23:34:02,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:34:02,956 INFO L479 AbstractCegarLoop]: Abstraction has 2669 states and 3178 transitions. [2020-08-18 23:34:02,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 23:34:02,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3178 transitions. [2020-08-18 23:34:02,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-08-18 23:34:02,965 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:34:02,965 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:34:02,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 23:34:02,966 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:34:02,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:34:02,966 INFO L82 PathProgramCache]: Analyzing trace with hash -204380159, now seen corresponding path program 1 times [2020-08-18 23:34:02,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:34:02,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236509712] [2020-08-18 23:34:02,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:34:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:03,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:34:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:03,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:34:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:03,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 23:34:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:03,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-18 23:34:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:03,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 23:34:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 120 proven. 42 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-18 23:34:03,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236509712] [2020-08-18 23:34:03,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:34:03,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 23:34:03,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190195037] [2020-08-18 23:34:03,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 23:34:03,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:34:03,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 23:34:03,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-08-18 23:34:03,336 INFO L87 Difference]: Start difference. First operand 2669 states and 3178 transitions. Second operand 11 states. [2020-08-18 23:34:05,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:34:05,556 INFO L93 Difference]: Finished difference Result 5912 states and 7150 transitions. [2020-08-18 23:34:05,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-18 23:34:05,557 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-08-18 23:34:05,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:34:05,574 INFO L225 Difference]: With dead ends: 5912 [2020-08-18 23:34:05,574 INFO L226 Difference]: Without dead ends: 3384 [2020-08-18 23:34:05,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2020-08-18 23:34:05,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2020-08-18 23:34:05,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3370. [2020-08-18 23:34:05,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3370 states. [2020-08-18 23:34:05,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 3925 transitions. [2020-08-18 23:34:05,681 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 3925 transitions. Word has length 211 [2020-08-18 23:34:05,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:34:05,682 INFO L479 AbstractCegarLoop]: Abstraction has 3370 states and 3925 transitions. [2020-08-18 23:34:05,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 23:34:05,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 3925 transitions. [2020-08-18 23:34:05,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-08-18 23:34:05,692 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:34:05,693 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:34:05,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 23:34:05,693 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:34:05,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:34:05,694 INFO L82 PathProgramCache]: Analyzing trace with hash 87228715, now seen corresponding path program 1 times [2020-08-18 23:34:05,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:34:05,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901461777] [2020-08-18 23:34:05,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:34:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:05,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:34:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:05,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:34:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:05,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 23:34:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:05,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 23:34:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:06,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-18 23:34:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 175 proven. 27 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-08-18 23:34:06,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901461777] [2020-08-18 23:34:06,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:34:06,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 23:34:06,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360840500] [2020-08-18 23:34:06,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 23:34:06,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:34:06,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 23:34:06,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 23:34:06,136 INFO L87 Difference]: Start difference. First operand 3370 states and 3925 transitions. Second operand 10 states. [2020-08-18 23:34:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:34:08,736 INFO L93 Difference]: Finished difference Result 7006 states and 8205 transitions. [2020-08-18 23:34:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 23:34:08,737 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 267 [2020-08-18 23:34:08,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:34:08,754 INFO L225 Difference]: With dead ends: 7006 [2020-08-18 23:34:08,755 INFO L226 Difference]: Without dead ends: 3779 [2020-08-18 23:34:08,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-08-18 23:34:08,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2020-08-18 23:34:08,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 3779. [2020-08-18 23:34:08,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3779 states. [2020-08-18 23:34:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 4342 transitions. [2020-08-18 23:34:08,867 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 4342 transitions. Word has length 267 [2020-08-18 23:34:08,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:34:08,871 INFO L479 AbstractCegarLoop]: Abstraction has 3779 states and 4342 transitions. [2020-08-18 23:34:08,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 23:34:08,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 4342 transitions. [2020-08-18 23:34:08,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-08-18 23:34:08,883 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:34:08,883 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:34:08,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 23:34:08,884 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:34:08,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:34:08,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1941606106, now seen corresponding path program 1 times [2020-08-18 23:34:08,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:34:08,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262686338] [2020-08-18 23:34:08,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:34:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:09,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:34:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:09,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:34:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:09,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 23:34:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:09,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 23:34:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:09,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-18 23:34:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:09,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-18 23:34:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:34:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-08-18 23:34:09,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262686338] [2020-08-18 23:34:09,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:34:09,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 23:34:09,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782459345] [2020-08-18 23:34:09,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 23:34:09,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:34:09,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 23:34:09,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 23:34:09,290 INFO L87 Difference]: Start difference. First operand 3779 states and 4342 transitions. Second operand 5 states. [2020-08-18 23:34:10,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:34:10,629 INFO L93 Difference]: Finished difference Result 7550 states and 8714 transitions. [2020-08-18 23:34:10,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 23:34:10,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-08-18 23:34:10,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:34:10,631 INFO L225 Difference]: With dead ends: 7550 [2020-08-18 23:34:10,631 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 23:34:10,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 23:34:10,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 23:34:10,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 23:34:10,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 23:34:10,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 23:34:10,647 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2020-08-18 23:34:10,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:34:10,647 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 23:34:10,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 23:34:10,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 23:34:10,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 23:34:10,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 23:34:10,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 23:34:11,164 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 133 [2020-08-18 23:34:11,320 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 133 [2020-08-18 23:34:12,269 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 62 [2020-08-18 23:34:12,699 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 47 [2020-08-18 23:34:13,066 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 47 [2020-08-18 23:34:13,071 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 23:34:13,072 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-18 23:34:13,072 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 23:34:13,072 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-18 23:34:13,073 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-18 23:34:13,073 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,073 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,073 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,073 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,073 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,073 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,074 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-18 23:34:13,074 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-18 23:34:13,074 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-18 23:34:13,074 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-18 23:34:13,074 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-18 23:34:13,074 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-18 23:34:13,075 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-18 23:34:13,075 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-18 23:34:13,075 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-18 23:34:13,075 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-18 23:34:13,075 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,075 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,075 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,075 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,076 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,076 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,076 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-18 23:34:13,076 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-18 23:34:13,076 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-18 23:34:13,076 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-18 23:34:13,076 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-18 23:34:13,076 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-18 23:34:13,077 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-18 23:34:13,077 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-18 23:34:13,077 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-18 23:34:13,077 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-18 23:34:13,077 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-18 23:34:13,077 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 485) no Hoare annotation was computed. [2020-08-18 23:34:13,077 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-18 23:34:13,078 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-18 23:34:13,078 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-18 23:34:13,078 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-18 23:34:13,078 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,078 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,078 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,078 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,078 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,078 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-18 23:34:13,079 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-18 23:34:13,079 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-18 23:34:13,079 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-18 23:34:13,079 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-18 23:34:13,079 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-18 23:34:13,079 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-18 23:34:13,079 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-18 23:34:13,079 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-18 23:34:13,080 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,080 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,080 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,080 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,080 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,080 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-18 23:34:13,080 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-18 23:34:13,080 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-18 23:34:13,080 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-18 23:34:13,081 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-18 23:34:13,081 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-18 23:34:13,081 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-18 23:34:13,081 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-18 23:34:13,081 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-18 23:34:13,081 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-18 23:34:13,081 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-18 23:34:13,081 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-18 23:34:13,081 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-18 23:34:13,082 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,082 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,082 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,082 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,082 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,082 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-18 23:34:13,082 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-18 23:34:13,083 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-18 23:34:13,083 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-18 23:34:13,083 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-18 23:34:13,083 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-18 23:34:13,083 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-18 23:34:13,083 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-18 23:34:13,083 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-18 23:34:13,083 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,084 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,084 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,084 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,084 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,084 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,084 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-18 23:34:13,084 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,084 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-18 23:34:13,085 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-18 23:34:13,085 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-18 23:34:13,085 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-18 23:34:13,085 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-18 23:34:13,085 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-18 23:34:13,085 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-18 23:34:13,085 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-18 23:34:13,085 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-18 23:34:13,086 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-18 23:34:13,086 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-18 23:34:13,086 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-18 23:34:13,086 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-18 23:34:13,086 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,086 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,086 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,086 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,086 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,087 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-18 23:34:13,087 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-18 23:34:13,087 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-18 23:34:13,087 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-18 23:34:13,087 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-18 23:34:13,087 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-18 23:34:13,087 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-18 23:34:13,087 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-18 23:34:13,088 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,088 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,088 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,088 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,088 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,088 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-18 23:34:13,088 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-18 23:34:13,088 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-18 23:34:13,089 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-18 23:34:13,089 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-18 23:34:13,089 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-18 23:34:13,089 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-18 23:34:13,089 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-18 23:34:13,089 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-18 23:34:13,089 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-18 23:34:13,090 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse11 (= |old(~a21~0)| 1))) (let ((.cse5 (= ~a21~0 1)) (.cse7 (= ~a16~0 4)) (.cse8 (not .cse11)) (.cse9 (not (= 4 |old(~a16~0)|))) (.cse2 (not (<= |old(~a16~0)| 5))) (.cse12 (not (<= 5 |old(~a16~0)|))) (.cse0 (and .cse4 .cse3 (= ~a21~0 |old(~a21~0)|) .cse6 (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) (.cse1 (not (= ~a12~0 8))) (.cse10 (= |old(~a7~0)| 1))) (and (or (not (<= |old(~a7~0)| 0)) .cse0 .cse1) (or (= |old(~a20~0)| 1) .cse2 .cse0 .cse1) (or (and .cse3 .cse4 .cse5 .cse6 (= ~a8~0 15) .cse7) (not (= 15 |old(~a8~0)|)) .cse8 .cse1 .cse9 .cse10) (or .cse0 .cse11 .cse1) (or (not (= |old(~a8~0)| 13)) (not (= |old(~a17~0)| 1)) (not .cse10) (and .cse3 .cse4 .cse5 .cse6 (= ~a8~0 13) .cse7) .cse8 .cse1 .cse9) (or .cse12 .cse2 .cse0 .cse1) (or .cse12 .cse0 .cse1 .cse10)))) [2020-08-18 23:34:13,090 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-18 23:34:13,090 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,090 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,090 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-18 23:34:13,091 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-18 23:34:13,092 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,093 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-18 23:34:13,093 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-18 23:34:13,093 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-18 23:34:13,093 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-18 23:34:13,093 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-18 23:34:13,093 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-18 23:34:13,093 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-18 23:34:13,093 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-18 23:34:13,093 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,094 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-18 23:34:13,095 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-18 23:34:13,096 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-18 23:34:13,096 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 23:34:13,096 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (<= ~a7~0 0) (= ~a20~0 1) (= 5 ~a16~0) (= ~a17~0 1)) [2020-08-18 23:34:13,096 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 23:34:13,096 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 23:34:13,096 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8))) [2020-08-18 23:34:13,096 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-18 23:34:13,096 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= ~a7~0 1))) (let ((.cse0 (<= ~a16~0 5)) (.cse3 (= ~a16~0 4)) (.cse1 (<= 5 ~a16~0)) (.cse4 (not .cse2))) (or (and .cse0 .cse1) (and .cse0 (not (= ~a20~0 1))) (not (= |old(~a17~0)| 1)) (and .cse2 (= ~a8~0 13) .cse3 (= ~a17~0 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a8~0 15) .cse3 .cse4) (not (= |old(~a20~0)| 1)) (not (= ~a21~0 1)) (<= ~a7~0 0) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8)) (and .cse1 .cse4)))) [2020-08-18 23:34:13,096 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-18 23:34:13,097 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-18 23:34:13,097 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a7~0 1))) (let ((.cse0 (<= ~a16~0 5)) (.cse3 (= ~a16~0 4)) (.cse1 (<= 5 ~a16~0)) (.cse4 (not .cse2))) (or (and .cse0 .cse1) (and .cse0 (not (= ~a20~0 1))) (not (= |old(~a17~0)| 1)) (and .cse2 (= ~a8~0 13) .cse3 (= ~a17~0 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a8~0 15) .cse3 .cse4) (not (= |old(~a20~0)| 1)) (not (= ~a21~0 1)) (<= ~a7~0 0) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8)) (and .cse1 .cse4)))) [2020-08-18 23:34:13,097 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-18 23:34:13,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 11:34:13 BoogieIcfgContainer [2020-08-18 23:34:13,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 23:34:13,122 INFO L168 Benchmark]: Toolchain (without parser) took 26782.40 ms. Allocated memory was 148.4 MB in the beginning and 565.7 MB in the end (delta: 417.3 MB). Free memory was 102.4 MB in the beginning and 349.8 MB in the end (delta: -247.4 MB). Peak memory consumption was 388.3 MB. Max. memory is 7.1 GB. [2020-08-18 23:34:13,122 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 23:34:13,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.47 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 102.2 MB in the beginning and 169.5 MB in the end (delta: -67.3 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-08-18 23:34:13,124 INFO L168 Benchmark]: Boogie Preprocessor took 146.51 ms. Allocated memory is still 205.5 MB. Free memory was 169.5 MB in the beginning and 164.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-08-18 23:34:13,125 INFO L168 Benchmark]: RCFGBuilder took 1307.53 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 164.7 MB in the beginning and 174.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. [2020-08-18 23:34:13,126 INFO L168 Benchmark]: TraceAbstraction took 24481.58 ms. Allocated memory was 236.5 MB in the beginning and 565.7 MB in the end (delta: 329.3 MB). Free memory was 173.0 MB in the beginning and 349.8 MB in the end (delta: -176.8 MB). Peak memory consumption was 370.9 MB. Max. memory is 7.1 GB. [2020-08-18 23:34:13,129 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 841.47 ms. Allocated memory was 148.4 MB in the beginning and 205.5 MB in the end (delta: 57.1 MB). Free memory was 102.2 MB in the beginning and 169.5 MB in the end (delta: -67.3 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.51 ms. Allocated memory is still 205.5 MB. Free memory was 169.5 MB in the beginning and 164.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1307.53 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 164.7 MB in the beginning and 174.4 MB in the end (delta: -9.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24481.58 ms. Allocated memory was 236.5 MB in the beginning and 565.7 MB in the end (delta: 329.3 MB). Free memory was 173.0 MB in the beginning and 349.8 MB in the end (delta: -176.8 MB). Peak memory consumption was 370.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 485]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((a16 <= 5 && 5 <= a16) || (a16 <= 5 && !(a20 == 1))) || !(\old(a17) == 1)) || (((a7 == 1 && a8 == 13) && a16 == 4) && a17 == 1)) || !(\old(a7) <= 0)) || ((a8 == 15 && a16 == 4) && !(a7 == 1))) || !(\old(a20) == 1)) || !(a21 == 1)) || a7 <= 0) || !(5 == \old(a16))) || !(a12 == 8)) || (5 <= a16 && !(a7 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.9s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 300 SDtfs, 5821 SDslu, 393 SDs, 0 SdLazy, 8868 SolverSat, 1432 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3779occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 793 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 151 PreInvPairs, 211 NumberOfFragments, 498 HoareAnnotationTreeSize, 151 FomulaSimplifications, 93427 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9529 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1838 NumberOfCodeBlocks, 1838 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1827 ConstructedInterpolants, 0 QuantifiedInterpolants, 1331029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 1004/1099 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...