/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 00:38:01,997 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-22 00:38:02,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 00:38:02,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 00:38:02,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 00:38:02,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 00:38:02,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 00:38:02,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 00:38:02,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 00:38:02,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 00:38:02,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 00:38:02,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 00:38:02,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 00:38:02,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 00:38:02,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 00:38:02,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 00:38:02,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 00:38:02,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 00:38:02,057 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 [2020-08-22 00:38:02,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 00:38:02,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 00:38:02,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 00:38:02,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 00:38:02,080 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 00:38:02,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 00:38:02,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 00:38:02,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 00:38:02,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 00:38:02,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 00:38:02,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 00:38:02,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 00:38:02,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 00:38:02,082 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 00:38:02,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 00:38:02,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 00:38:02,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 00:38:02,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 00:38:02,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 00:38:02,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 00:38:02,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 00:38:02,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 00:38:02,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 00:38:02,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 00:38:02,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 00:38:02,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 00:38:02,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 00:38:02,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 00:38:02,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 00:38:02,085 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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-08-22 00:38:02,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 00:38:02,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 00:38:02,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 00:38:02,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 00:38:02,419 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 00:38:02,420 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-22 00:38:02,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92ebc73ef/5e429d27b9984feebb1fae804daf1fd4/FLAG35bba313b [2020-08-22 00:38:03,026 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 00:38:03,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-22 00:38:03,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92ebc73ef/5e429d27b9984feebb1fae804daf1fd4/FLAG35bba313b [2020-08-22 00:38:03,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92ebc73ef/5e429d27b9984feebb1fae804daf1fd4 [2020-08-22 00:38:03,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 00:38:03,333 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 00:38:03,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 00:38:03,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 00:38:03,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 00:38:03,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 12:38:03" (1/1) ... [2020-08-22 00:38:03,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d3ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:03, skipping insertion in model container [2020-08-22 00:38:03,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 12:38:03" (1/1) ... [2020-08-22 00:38:03,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 00:38:03,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 00:38:04,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 00:38:04,020 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 00:38:04,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 00:38:04,181 INFO L208 MainTranslator]: Completed translation [2020-08-22 00:38:04,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04 WrapperNode [2020-08-22 00:38:04,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 00:38:04,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 00:38:04,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 00:38:04,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 00:38:04,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04" (1/1) ... [2020-08-22 00:38:04,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04" (1/1) ... [2020-08-22 00:38:04,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04" (1/1) ... [2020-08-22 00:38:04,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04" (1/1) ... [2020-08-22 00:38:04,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04" (1/1) ... [2020-08-22 00:38:04,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04" (1/1) ... [2020-08-22 00:38:04,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04" (1/1) ... [2020-08-22 00:38:04,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 00:38:04,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 00:38:04,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 00:38:04,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 00:38:04,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04" (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 [2020-08-22 00:38:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 00:38:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 00:38:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 00:38:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 00:38:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 00:38:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 00:38:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 00:38:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 00:38:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 00:38:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 00:38:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 00:38:05,669 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 00:38:05,669 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 00:38:05,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:38:05 BoogieIcfgContainer [2020-08-22 00:38:05,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 00:38:05,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 00:38:05,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 00:38:05,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 00:38:05,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 12:38:03" (1/3) ... [2020-08-22 00:38:05,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a317ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 12:38:05, skipping insertion in model container [2020-08-22 00:38:05,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:04" (2/3) ... [2020-08-22 00:38:05,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a317ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 12:38:05, skipping insertion in model container [2020-08-22 00:38:05,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:38:05" (3/3) ... [2020-08-22 00:38:05,683 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-08-22 00:38:05,694 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 00:38:05,703 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 00:38:05,717 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 00:38:05,743 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 00:38:05,743 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 00:38:05,743 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 00:38:05,743 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 00:38:05,744 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 00:38:05,744 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 00:38:05,744 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 00:38:05,744 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 00:38:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-22 00:38:05,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-08-22 00:38:05,779 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:05,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:05,781 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:05,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:05,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2020-08-22 00:38:05,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:05,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611380336] [2020-08-22 00:38:05,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:06,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 00:38:06,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611380336] [2020-08-22 00:38:06,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:38:06,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 00:38:06,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969056913] [2020-08-22 00:38:06,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 00:38:06,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:06,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 00:38:06,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 00:38:06,503 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-22 00:38:08,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:08,488 INFO L93 Difference]: Finished difference Result 723 states and 1255 transitions. [2020-08-22 00:38:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 00:38:08,490 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-08-22 00:38:08,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:08,507 INFO L225 Difference]: With dead ends: 723 [2020-08-22 00:38:08,507 INFO L226 Difference]: Without dead ends: 423 [2020-08-22 00:38:08,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:38:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-22 00:38:08,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-22 00:38:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-22 00:38:08,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 584 transitions. [2020-08-22 00:38:08,601 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 584 transitions. Word has length 122 [2020-08-22 00:38:08,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:08,602 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 584 transitions. [2020-08-22 00:38:08,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 00:38:08,603 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 584 transitions. [2020-08-22 00:38:08,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-22 00:38:08,608 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:08,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:08,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 00:38:08,609 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:08,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:08,610 INFO L82 PathProgramCache]: Analyzing trace with hash -259733235, now seen corresponding path program 1 times [2020-08-22 00:38:08,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:08,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547057803] [2020-08-22 00:38:08,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:08,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:08,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 00:38:08,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547057803] [2020-08-22 00:38:08,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:38:08,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 00:38:08,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091751397] [2020-08-22 00:38:08,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 00:38:08,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:08,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 00:38:08,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 00:38:08,869 INFO L87 Difference]: Start difference. First operand 417 states and 584 transitions. Second operand 8 states. [2020-08-22 00:38:10,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:10,120 INFO L93 Difference]: Finished difference Result 1269 states and 1843 transitions. [2020-08-22 00:38:10,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 00:38:10,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-08-22 00:38:10,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:10,128 INFO L225 Difference]: With dead ends: 1269 [2020-08-22 00:38:10,128 INFO L226 Difference]: Without dead ends: 858 [2020-08-22 00:38:10,130 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 [2020-08-22 00:38:10,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-08-22 00:38:10,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 834. [2020-08-22 00:38:10,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-08-22 00:38:10,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1168 transitions. [2020-08-22 00:38:10,194 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1168 transitions. Word has length 132 [2020-08-22 00:38:10,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:10,194 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1168 transitions. [2020-08-22 00:38:10,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 00:38:10,195 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1168 transitions. [2020-08-22 00:38:10,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-08-22 00:38:10,200 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:10,200 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:10,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 00:38:10,201 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:10,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:10,201 INFO L82 PathProgramCache]: Analyzing trace with hash 2082377679, now seen corresponding path program 1 times [2020-08-22 00:38:10,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:10,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677043579] [2020-08-22 00:38:10,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:10,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:10,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 00:38:10,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677043579] [2020-08-22 00:38:10,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:10,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 00:38:10,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858846134] [2020-08-22 00:38:10,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 00:38:10,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:10,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 00:38:10,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 00:38:10,679 INFO L87 Difference]: Start difference. First operand 834 states and 1168 transitions. Second operand 6 states. [2020-08-22 00:38:11,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:11,796 INFO L93 Difference]: Finished difference Result 1769 states and 2519 transitions. [2020-08-22 00:38:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 00:38:11,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-08-22 00:38:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:11,803 INFO L225 Difference]: With dead ends: 1769 [2020-08-22 00:38:11,803 INFO L226 Difference]: Without dead ends: 840 [2020-08-22 00:38:11,805 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 [2020-08-22 00:38:11,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2020-08-22 00:38:11,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 832. [2020-08-22 00:38:11,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-08-22 00:38:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1059 transitions. [2020-08-22 00:38:11,839 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1059 transitions. Word has length 133 [2020-08-22 00:38:11,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:11,839 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1059 transitions. [2020-08-22 00:38:11,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 00:38:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1059 transitions. [2020-08-22 00:38:11,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-08-22 00:38:11,843 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:11,843 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:11,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 00:38:11,844 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:11,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:11,844 INFO L82 PathProgramCache]: Analyzing trace with hash 394249543, now seen corresponding path program 1 times [2020-08-22 00:38:11,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:11,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347125551] [2020-08-22 00:38:11,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:12,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:12,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 00:38:12,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347125551] [2020-08-22 00:38:12,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:12,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 00:38:12,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106471857] [2020-08-22 00:38:12,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 00:38:12,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:12,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 00:38:12,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 00:38:12,115 INFO L87 Difference]: Start difference. First operand 832 states and 1059 transitions. Second operand 5 states. [2020-08-22 00:38:13,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:13,016 INFO L93 Difference]: Finished difference Result 2079 states and 2683 transitions. [2020-08-22 00:38:13,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 00:38:13,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-08-22 00:38:13,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:13,023 INFO L225 Difference]: With dead ends: 2079 [2020-08-22 00:38:13,023 INFO L226 Difference]: Without dead ends: 1253 [2020-08-22 00:38:13,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 00:38:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-08-22 00:38:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1243. [2020-08-22 00:38:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1243 states. [2020-08-22 00:38:13,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1550 transitions. [2020-08-22 00:38:13,065 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1550 transitions. Word has length 137 [2020-08-22 00:38:13,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:13,065 INFO L479 AbstractCegarLoop]: Abstraction has 1243 states and 1550 transitions. [2020-08-22 00:38:13,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 00:38:13,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1550 transitions. [2020-08-22 00:38:13,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-08-22 00:38:13,070 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:13,070 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:13,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 00:38:13,070 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:13,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:13,071 INFO L82 PathProgramCache]: Analyzing trace with hash 706222219, now seen corresponding path program 1 times [2020-08-22 00:38:13,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:13,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092201354] [2020-08-22 00:38:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:13,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:13,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:13,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 00:38:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:13,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 00:38:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-08-22 00:38:13,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092201354] [2020-08-22 00:38:13,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:13,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 00:38:13,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448465493] [2020-08-22 00:38:13,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:38:13,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:13,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:38:13,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:38:13,328 INFO L87 Difference]: Start difference. First operand 1243 states and 1550 transitions. Second operand 7 states. [2020-08-22 00:38:14,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:14,356 INFO L93 Difference]: Finished difference Result 3360 states and 4273 transitions. [2020-08-22 00:38:14,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 00:38:14,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-08-22 00:38:14,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:14,370 INFO L225 Difference]: With dead ends: 3360 [2020-08-22 00:38:14,371 INFO L226 Difference]: Without dead ends: 2123 [2020-08-22 00:38:14,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:38:14,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2020-08-22 00:38:14,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 1962. [2020-08-22 00:38:14,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-08-22 00:38:14,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2370 transitions. [2020-08-22 00:38:14,457 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2370 transitions. Word has length 181 [2020-08-22 00:38:14,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:14,458 INFO L479 AbstractCegarLoop]: Abstraction has 1962 states and 2370 transitions. [2020-08-22 00:38:14,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:38:14,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2370 transitions. [2020-08-22 00:38:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-08-22 00:38:14,466 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:14,467 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:14,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 00:38:14,468 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:14,468 INFO L82 PathProgramCache]: Analyzing trace with hash 853819156, now seen corresponding path program 1 times [2020-08-22 00:38:14,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:14,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1011995715] [2020-08-22 00:38:14,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:14,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:14,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:38:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:14,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 00:38:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:14,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-22 00:38:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 75 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-08-22 00:38:14,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1011995715] [2020-08-22 00:38:14,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:14,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 00:38:14,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880772668] [2020-08-22 00:38:14,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:38:14,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:14,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:38:14,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:38:14,751 INFO L87 Difference]: Start difference. First operand 1962 states and 2370 transitions. Second operand 7 states. [2020-08-22 00:38:16,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:16,136 INFO L93 Difference]: Finished difference Result 5487 states and 6885 transitions. [2020-08-22 00:38:16,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 00:38:16,137 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-08-22 00:38:16,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:16,157 INFO L225 Difference]: With dead ends: 5487 [2020-08-22 00:38:16,158 INFO L226 Difference]: Without dead ends: 3531 [2020-08-22 00:38:16,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:38:16,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2020-08-22 00:38:16,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3360. [2020-08-22 00:38:16,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3360 states. [2020-08-22 00:38:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4099 transitions. [2020-08-22 00:38:16,274 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4099 transitions. Word has length 196 [2020-08-22 00:38:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:16,276 INFO L479 AbstractCegarLoop]: Abstraction has 3360 states and 4099 transitions. [2020-08-22 00:38:16,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:38:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4099 transitions. [2020-08-22 00:38:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-22 00:38:16,289 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:16,289 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:16,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 00:38:16,290 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:16,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:16,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1458466897, now seen corresponding path program 1 times [2020-08-22 00:38:16,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:16,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825747612] [2020-08-22 00:38:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:16,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:16,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:16,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 00:38:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:16,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 00:38:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:16,555 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 80 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-08-22 00:38:16,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825747612] [2020-08-22 00:38:16,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:16,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 00:38:16,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161405199] [2020-08-22 00:38:16,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:38:16,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:16,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:38:16,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:38:16,560 INFO L87 Difference]: Start difference. First operand 3360 states and 4099 transitions. Second operand 7 states. [2020-08-22 00:38:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:17,866 INFO L93 Difference]: Finished difference Result 7002 states and 8519 transitions. [2020-08-22 00:38:17,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 00:38:17,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-08-22 00:38:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:17,888 INFO L225 Difference]: With dead ends: 7002 [2020-08-22 00:38:17,888 INFO L226 Difference]: Without dead ends: 3648 [2020-08-22 00:38:17,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:38:17,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2020-08-22 00:38:18,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3646. [2020-08-22 00:38:18,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3646 states. [2020-08-22 00:38:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 4303 transitions. [2020-08-22 00:38:18,091 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 4303 transitions. Word has length 195 [2020-08-22 00:38:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:18,091 INFO L479 AbstractCegarLoop]: Abstraction has 3646 states and 4303 transitions. [2020-08-22 00:38:18,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:38:18,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 4303 transitions. [2020-08-22 00:38:18,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-08-22 00:38:18,105 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:18,106 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:18,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 00:38:18,106 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:18,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:18,107 INFO L82 PathProgramCache]: Analyzing trace with hash 426210850, now seen corresponding path program 1 times [2020-08-22 00:38:18,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:18,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836998873] [2020-08-22 00:38:18,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:18,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:18,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:18,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 00:38:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:18,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 00:38:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:18,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-22 00:38:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 122 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-08-22 00:38:18,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836998873] [2020-08-22 00:38:18,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:18,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 00:38:18,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771395448] [2020-08-22 00:38:18,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:38:18,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:18,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:38:18,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:38:18,325 INFO L87 Difference]: Start difference. First operand 3646 states and 4303 transitions. Second operand 7 states. [2020-08-22 00:38:19,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:19,592 INFO L93 Difference]: Finished difference Result 7167 states and 8462 transitions. [2020-08-22 00:38:19,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 00:38:19,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-08-22 00:38:19,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:19,609 INFO L225 Difference]: With dead ends: 7167 [2020-08-22 00:38:19,609 INFO L226 Difference]: Without dead ends: 3662 [2020-08-22 00:38:19,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-22 00:38:19,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2020-08-22 00:38:19,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3656. [2020-08-22 00:38:19,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3656 states. [2020-08-22 00:38:19,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 4209 transitions. [2020-08-22 00:38:19,719 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 4209 transitions. Word has length 232 [2020-08-22 00:38:19,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:19,723 INFO L479 AbstractCegarLoop]: Abstraction has 3656 states and 4209 transitions. [2020-08-22 00:38:19,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:38:19,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 4209 transitions. [2020-08-22 00:38:19,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-08-22 00:38:19,735 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:19,735 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:19,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 00:38:19,736 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:19,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:19,736 INFO L82 PathProgramCache]: Analyzing trace with hash 604394622, now seen corresponding path program 1 times [2020-08-22 00:38:19,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:19,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207266962] [2020-08-22 00:38:19,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:19,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:19,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:19,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 00:38:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:19,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 00:38:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:19,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-22 00:38:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:20,057 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 147 proven. 39 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-08-22 00:38:20,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207266962] [2020-08-22 00:38:20,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:20,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 00:38:20,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916685407] [2020-08-22 00:38:20,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 00:38:20,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:20,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 00:38:20,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 00:38:20,060 INFO L87 Difference]: Start difference. First operand 3656 states and 4209 transitions. Second operand 9 states. [2020-08-22 00:38:23,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:23,968 INFO L93 Difference]: Finished difference Result 11217 states and 13877 transitions. [2020-08-22 00:38:23,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 00:38:23,969 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2020-08-22 00:38:23,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:24,007 INFO L225 Difference]: With dead ends: 11217 [2020-08-22 00:38:24,007 INFO L226 Difference]: Without dead ends: 7702 [2020-08-22 00:38:24,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2020-08-22 00:38:24,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7702 states. [2020-08-22 00:38:24,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7702 to 7406. [2020-08-22 00:38:24,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7406 states. [2020-08-22 00:38:24,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 9126 transitions. [2020-08-22 00:38:24,284 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 9126 transitions. Word has length 246 [2020-08-22 00:38:24,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:24,284 INFO L479 AbstractCegarLoop]: Abstraction has 7406 states and 9126 transitions. [2020-08-22 00:38:24,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 00:38:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 9126 transitions. [2020-08-22 00:38:24,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-08-22 00:38:24,319 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:24,320 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:24,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 00:38:24,320 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:24,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:24,321 INFO L82 PathProgramCache]: Analyzing trace with hash -763457286, now seen corresponding path program 1 times [2020-08-22 00:38:24,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:24,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584698257] [2020-08-22 00:38:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:24,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:24,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:24,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 00:38:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:24,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 00:38:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:24,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 00:38:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 171 proven. 27 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-08-22 00:38:24,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584698257] [2020-08-22 00:38:24,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:24,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 00:38:24,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228543534] [2020-08-22 00:38:24,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 00:38:24,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:24,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 00:38:24,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-22 00:38:24,725 INFO L87 Difference]: Start difference. First operand 7406 states and 9126 transitions. Second operand 10 states. [2020-08-22 00:38:25,342 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-08-22 00:38:27,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:27,236 INFO L93 Difference]: Finished difference Result 14172 states and 17050 transitions. [2020-08-22 00:38:27,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 00:38:27,237 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 276 [2020-08-22 00:38:27,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:27,263 INFO L225 Difference]: With dead ends: 14172 [2020-08-22 00:38:27,264 INFO L226 Difference]: Without dead ends: 6907 [2020-08-22 00:38:27,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-08-22 00:38:27,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6907 states. [2020-08-22 00:38:27,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6907 to 6883. [2020-08-22 00:38:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6883 states. [2020-08-22 00:38:27,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6883 states to 6883 states and 7945 transitions. [2020-08-22 00:38:27,438 INFO L78 Accepts]: Start accepts. Automaton has 6883 states and 7945 transitions. Word has length 276 [2020-08-22 00:38:27,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:27,439 INFO L479 AbstractCegarLoop]: Abstraction has 6883 states and 7945 transitions. [2020-08-22 00:38:27,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 00:38:27,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6883 states and 7945 transitions. [2020-08-22 00:38:27,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-08-22 00:38:27,457 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:27,457 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:27,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 00:38:27,458 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:27,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:27,458 INFO L82 PathProgramCache]: Analyzing trace with hash 2075847519, now seen corresponding path program 1 times [2020-08-22 00:38:27,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:27,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100807662] [2020-08-22 00:38:27,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 00:38:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 00:38:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 00:38:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 00:38:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,949 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 225 proven. 31 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-08-22 00:38:27,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100807662] [2020-08-22 00:38:27,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:27,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 00:38:27,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13126247] [2020-08-22 00:38:27,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 00:38:27,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:27,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 00:38:27,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 00:38:27,954 INFO L87 Difference]: Start difference. First operand 6883 states and 7945 transitions. Second operand 9 states. [2020-08-22 00:38:29,455 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-08-22 00:38:29,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:29,828 INFO L93 Difference]: Finished difference Result 13655 states and 15775 transitions. [2020-08-22 00:38:29,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 00:38:29,829 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 289 [2020-08-22 00:38:29,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:29,863 INFO L225 Difference]: With dead ends: 13655 [2020-08-22 00:38:29,864 INFO L226 Difference]: Without dead ends: 6913 [2020-08-22 00:38:29,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-08-22 00:38:29,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2020-08-22 00:38:30,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6885. [2020-08-22 00:38:30,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6885 states. [2020-08-22 00:38:30,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 7926 transitions. [2020-08-22 00:38:30,017 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 7926 transitions. Word has length 289 [2020-08-22 00:38:30,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:30,018 INFO L479 AbstractCegarLoop]: Abstraction has 6885 states and 7926 transitions. [2020-08-22 00:38:30,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 00:38:30,018 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 7926 transitions. [2020-08-22 00:38:30,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-08-22 00:38:30,039 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:30,039 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:30,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 00:38:30,040 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:30,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:30,040 INFO L82 PathProgramCache]: Analyzing trace with hash -394947665, now seen corresponding path program 1 times [2020-08-22 00:38:30,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:30,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427732916] [2020-08-22 00:38:30,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 00:38:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 00:38:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 00:38:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 00:38:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 262 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-08-22 00:38:30,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427732916] [2020-08-22 00:38:30,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:30,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 00:38:30,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303290881] [2020-08-22 00:38:30,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 00:38:30,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:30,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 00:38:30,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 00:38:30,412 INFO L87 Difference]: Start difference. First operand 6885 states and 7926 transitions. Second operand 8 states. [2020-08-22 00:38:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:31,630 INFO L93 Difference]: Finished difference Result 13538 states and 15450 transitions. [2020-08-22 00:38:31,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 00:38:31,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 308 [2020-08-22 00:38:31,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:31,647 INFO L225 Difference]: With dead ends: 13538 [2020-08-22 00:38:31,647 INFO L226 Difference]: Without dead ends: 6796 [2020-08-22 00:38:31,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:38:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6796 states. [2020-08-22 00:38:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6796 to 6053. [2020-08-22 00:38:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6053 states. [2020-08-22 00:38:31,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6053 states to 6053 states and 6739 transitions. [2020-08-22 00:38:31,781 INFO L78 Accepts]: Start accepts. Automaton has 6053 states and 6739 transitions. Word has length 308 [2020-08-22 00:38:31,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:31,781 INFO L479 AbstractCegarLoop]: Abstraction has 6053 states and 6739 transitions. [2020-08-22 00:38:31,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 00:38:31,781 INFO L276 IsEmpty]: Start isEmpty. Operand 6053 states and 6739 transitions. [2020-08-22 00:38:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-08-22 00:38:31,798 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:31,799 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:31,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 00:38:31,799 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:31,800 INFO L82 PathProgramCache]: Analyzing trace with hash 874817583, now seen corresponding path program 1 times [2020-08-22 00:38:31,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:31,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1163157933] [2020-08-22 00:38:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:31,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:32,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 00:38:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:32,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 00:38:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:32,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 00:38:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:32,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 00:38:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 198 proven. 5 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-08-22 00:38:32,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1163157933] [2020-08-22 00:38:32,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:32,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 00:38:32,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342260157] [2020-08-22 00:38:32,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 00:38:32,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:32,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 00:38:32,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 00:38:32,231 INFO L87 Difference]: Start difference. First operand 6053 states and 6739 transitions. Second operand 5 states. [2020-08-22 00:38:33,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:33,078 INFO L93 Difference]: Finished difference Result 12515 states and 13928 transitions. [2020-08-22 00:38:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 00:38:33,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 313 [2020-08-22 00:38:33,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:33,106 INFO L225 Difference]: With dead ends: 12515 [2020-08-22 00:38:33,107 INFO L226 Difference]: Without dead ends: 5497 [2020-08-22 00:38:33,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 00:38:33,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2020-08-22 00:38:33,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 5344. [2020-08-22 00:38:33,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5344 states. [2020-08-22 00:38:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5826 transitions. [2020-08-22 00:38:33,209 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5826 transitions. Word has length 313 [2020-08-22 00:38:33,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:33,210 INFO L479 AbstractCegarLoop]: Abstraction has 5344 states and 5826 transitions. [2020-08-22 00:38:33,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 00:38:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5826 transitions. [2020-08-22 00:38:33,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-08-22 00:38:33,225 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:33,225 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:33,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 00:38:33,226 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:33,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:33,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1264462194, now seen corresponding path program 1 times [2020-08-22 00:38:33,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:33,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105541597] [2020-08-22 00:38:33,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 00:38:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 00:38:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 00:38:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 00:38:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-22 00:38:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,577 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 184 proven. 21 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2020-08-22 00:38:33,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105541597] [2020-08-22 00:38:33,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:33,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 00:38:33,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941999689] [2020-08-22 00:38:33,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 00:38:33,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:33,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 00:38:33,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 00:38:33,579 INFO L87 Difference]: Start difference. First operand 5344 states and 5826 transitions. Second operand 6 states. [2020-08-22 00:38:34,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:34,787 INFO L93 Difference]: Finished difference Result 5904 states and 6477 transitions. [2020-08-22 00:38:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 00:38:34,787 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 318 [2020-08-22 00:38:34,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:34,798 INFO L225 Difference]: With dead ends: 5904 [2020-08-22 00:38:34,798 INFO L226 Difference]: Without dead ends: 5902 [2020-08-22 00:38:34,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 00:38:34,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2020-08-22 00:38:34,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 5479. [2020-08-22 00:38:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-08-22 00:38:34,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 5996 transitions. [2020-08-22 00:38:34,886 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 5996 transitions. Word has length 318 [2020-08-22 00:38:34,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:34,887 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 5996 transitions. [2020-08-22 00:38:34,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 00:38:34,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 5996 transitions. [2020-08-22 00:38:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-08-22 00:38:34,903 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:34,904 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:34,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 00:38:34,904 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:34,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:34,905 INFO L82 PathProgramCache]: Analyzing trace with hash 41074506, now seen corresponding path program 1 times [2020-08-22 00:38:34,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:34,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407717026] [2020-08-22 00:38:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 00:38:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 00:38:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 00:38:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 00:38:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-22 00:38:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,555 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 357 proven. 25 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-08-22 00:38:35,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407717026] [2020-08-22 00:38:35,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:35,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-22 00:38:35,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975092200] [2020-08-22 00:38:35,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 00:38:35,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:35,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 00:38:35,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:38:35,558 INFO L87 Difference]: Start difference. First operand 5479 states and 5996 transitions. Second operand 12 states. [2020-08-22 00:38:35,933 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-08-22 00:38:36,391 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-08-22 00:38:37,649 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-08-22 00:38:38,188 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-08-22 00:38:38,919 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-08-22 00:38:39,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:39,441 INFO L93 Difference]: Finished difference Result 10259 states and 11214 transitions. [2020-08-22 00:38:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 00:38:39,448 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 338 [2020-08-22 00:38:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:39,459 INFO L225 Difference]: With dead ends: 10259 [2020-08-22 00:38:39,460 INFO L226 Difference]: Without dead ends: 4923 [2020-08-22 00:38:39,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2020-08-22 00:38:39,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2020-08-22 00:38:39,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4905. [2020-08-22 00:38:39,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4905 states. [2020-08-22 00:38:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4905 states to 4905 states and 5319 transitions. [2020-08-22 00:38:39,559 INFO L78 Accepts]: Start accepts. Automaton has 4905 states and 5319 transitions. Word has length 338 [2020-08-22 00:38:39,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:39,559 INFO L479 AbstractCegarLoop]: Abstraction has 4905 states and 5319 transitions. [2020-08-22 00:38:39,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 00:38:39,560 INFO L276 IsEmpty]: Start isEmpty. Operand 4905 states and 5319 transitions. [2020-08-22 00:38:39,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-08-22 00:38:39,576 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:39,576 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:39,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 00:38:39,577 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:39,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:39,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1269018866, now seen corresponding path program 1 times [2020-08-22 00:38:39,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:39,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226867689] [2020-08-22 00:38:39,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:39,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:39,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:39,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 00:38:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:39,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 00:38:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:39,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 00:38:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:39,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 00:38:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:39,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-22 00:38:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:40,039 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 224 proven. 24 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2020-08-22 00:38:40,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226867689] [2020-08-22 00:38:40,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:40,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 00:38:40,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981793725] [2020-08-22 00:38:40,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:38:40,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:40,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:38:40,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:38:40,041 INFO L87 Difference]: Start difference. First operand 4905 states and 5319 transitions. Second operand 7 states. [2020-08-22 00:38:41,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:41,207 INFO L93 Difference]: Finished difference Result 8974 states and 9763 transitions. [2020-08-22 00:38:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 00:38:41,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 358 [2020-08-22 00:38:41,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:41,209 INFO L225 Difference]: With dead ends: 8974 [2020-08-22 00:38:41,209 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 00:38:41,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-22 00:38:41,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 00:38:41,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 00:38:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 00:38:41,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 00:38:41,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 358 [2020-08-22 00:38:41,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:41,222 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 00:38:41,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:38:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 00:38:41,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 00:38:41,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 00:38:41,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 00:38:42,101 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 215 [2020-08-22 00:38:42,452 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 215 [2020-08-22 00:38:44,636 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 243 DAG size of output: 99 [2020-08-22 00:38:46,052 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 211 DAG size of output: 87 [2020-08-22 00:38:47,412 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 211 DAG size of output: 87 [2020-08-22 00:38:47,417 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 00:38:47,417 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)|)) [2020-08-22 00:38:47,418 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 00:38:47,418 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-22 00:38:47,418 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-22 00:38:47,418 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,419 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,419 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,419 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,419 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-22 00:38:47,420 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-22 00:38:47,421 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,421 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,421 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,421 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,421 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,421 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,421 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-22 00:38:47,421 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-22 00:38:47,422 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-22 00:38:47,422 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-22 00:38:47,422 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-22 00:38:47,422 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-22 00:38:47,422 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-22 00:38:47,422 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-22 00:38:47,422 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-22 00:38:47,422 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-22 00:38:47,422 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-22 00:38:47,423 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2020-08-22 00:38:47,423 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-22 00:38:47,423 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-22 00:38:47,423 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-22 00:38:47,423 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-22 00:38:47,423 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,423 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,423 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,424 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,424 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,424 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-22 00:38:47,424 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-22 00:38:47,424 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-22 00:38:47,424 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-22 00:38:47,424 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-22 00:38:47,424 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-22 00:38:47,424 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-22 00:38:47,425 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-22 00:38:47,426 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-22 00:38:47,427 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,427 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,427 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,427 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,427 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,427 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-22 00:38:47,427 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-22 00:38:47,427 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,428 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,429 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,429 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,429 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-22 00:38:47,429 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,429 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-22 00:38:47,429 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-22 00:38:47,429 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-22 00:38:47,429 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-22 00:38:47,429 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-22 00:38:47,430 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-22 00:38:47,430 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-22 00:38:47,430 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-22 00:38:47,430 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-22 00:38:47,430 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-22 00:38:47,430 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-22 00:38:47,430 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-22 00:38:47,430 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-22 00:38:47,430 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,431 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,431 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,431 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,431 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,431 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-22 00:38:47,431 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-22 00:38:47,431 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-22 00:38:47,431 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-22 00:38:47,432 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-22 00:38:47,432 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-22 00:38:47,432 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-22 00:38:47,432 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-22 00:38:47,432 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,432 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,432 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,432 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,432 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,433 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-22 00:38:47,433 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-22 00:38:47,433 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-22 00:38:47,433 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-22 00:38:47,433 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-22 00:38:47,433 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-22 00:38:47,433 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-22 00:38:47,433 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-22 00:38:47,433 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-22 00:38:47,434 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-22 00:38:47,434 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse13 (= |old(~a20~0)| 1)) (.cse15 (= |old(~a7~0)| 1)) (.cse6 (= ~a16~0 |old(~a16~0)|)) (.cse28 (= ~a8~0 13)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a21~0 |old(~a21~0)|)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse7 (= ~a8~0 |old(~a8~0)|)) (.cse29 (= ~a16~0 4))) (let ((.cse18 (not (<= 14 |old(~a8~0)|))) (.cse22 (and .cse3 .cse2 .cse4 .cse5 .cse7 .cse29)) (.cse19 (not (<= |old(~a16~0)| 5))) (.cse23 (and .cse3 .cse2 .cse4 .cse5 .cse7 (= 5 ~a16~0))) (.cse24 (not (= 5 |old(~a16~0)|))) (.cse26 (and .cse3 .cse2 .cse4 .cse5 .cse6 .cse28)) (.cse8 (not (<= |old(~a17~0)| 0))) (.cse16 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= |old(~a7~0)| 0))) (.cse17 (not (<= 15 |old(~a8~0)|))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse25 (not (= 6 |old(~a16~0)|))) (.cse20 (and .cse3 .cse2 .cse4 .cse5 .cse6 .cse7)) (.cse10 (not (<= |old(~a20~0)| 0))) (.cse12 (not (= |old(~a8~0)| 13))) (.cse27 (not .cse15)) (.cse14 (and .cse3 .cse2 .cse4 .cse5 .cse28 .cse29)) (.cse21 (not .cse13)) (.cse9 (not (= ~a12~0 8))) (.cse11 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10 .cse11) (or .cse12 .cse13 .cse1 .cse14 .cse9 .cse11 .cse15) (or (and .cse3 .cse4 .cse5 .cse6 .cse7 (= ~a17~0 1)) .cse16 .cse13 .cse17 .cse1 .cse9 .cse11 .cse15) (or .cse18 .cse19 .cse1 .cse20 .cse8 .cse9 .cse10) (or .cse16 .cse0 .cse19 .cse1 .cse21 .cse22 .cse9 .cse11) (or .cse18 .cse1 .cse23 .cse8 .cse24 .cse9) (or .cse17 .cse1 .cse25 .cse21 .cse20 .cse8 .cse9 .cse15) (or .cse0 .cse17 .cse1 .cse25 .cse8 .cse20 .cse9 .cse10) (or .cse12 .cse16 .cse26 .cse19 .cse27 .cse21 .cse9) (or .cse12 .cse16 .cse0 .cse26 .cse1 .cse25 .cse21 .cse9) (or .cse12 .cse0 .cse1 .cse14 .cse21 .cse9 .cse11) (or .cse16 .cse13 .cse17 .cse1 .cse23 .cse24 .cse9 .cse15) (or .cse0 .cse1 .cse21 .cse8 .cse22 .cse9 .cse11) (or .cse12 .cse16 .cse26 .cse19 .cse9 .cse10) (or .cse16 .cse0 .cse19 .cse17 .cse1 .cse23 .cse21 .cse24 .cse9) (or .cse12 .cse26 .cse27 .cse25 .cse21 .cse8 .cse9) (or .cse16 .cse0 .cse17 .cse1 .cse25 .cse20 .cse9 .cse10) (or .cse12 .cse27 .cse14 .cse21 (= |old(~a21~0)| 1) .cse9 .cse11 (not (= 0 |old(~a17~0)|)))))) [2020-08-22 00:38:47,434 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-22 00:38:47,434 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-22 00:38:47,435 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-22 00:38:47,436 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-22 00:38:47,436 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-22 00:38:47,436 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-22 00:38:47,436 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-22 00:38:47,436 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-22 00:38:47,436 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-22 00:38:47,436 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-22 00:38:47,436 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-22 00:38:47,436 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-22 00:38:47,437 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-22 00:38:47,438 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-22 00:38:47,439 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-22 00:38:47,440 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-22 00:38:47,440 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-22 00:38:47,440 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-22 00:38:47,440 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-22 00:38:47,440 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-22 00:38:47,440 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-22 00:38:47,440 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 00:38:47,440 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (<= ~a7~0 0) (= ~a20~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-22 00:38:47,440 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 00:38:47,441 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 00:38:47,441 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8))) [2020-08-22 00:38:47,441 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-22 00:38:47,441 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse12 (= ~a7~0 1))) (let ((.cse11 (= 5 ~a16~0)) (.cse6 (= ~a12~0 8)) (.cse0 (= ~a16~0 6)) (.cse7 (<= ~a7~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse14 (<= 14 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse13 (<= ~a16~0 5)) (.cse10 (= ~a17~0 1)) (.cse16 (<= ~a20~0 0)) (.cse8 (= ~a8~0 13)) (.cse9 (= ~a16~0 4)) (.cse4 (<= 1 ~a21~0)) (.cse3 (not .cse12)) (.cse15 (not .cse2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse4) (and .cse6 .cse7 .cse2 .cse9 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a8~0 |old(~a8~0)|) .cse11) (and .cse6 .cse1 .cse7 .cse2 .cse9 .cse4) (and .cse12 .cse13 .cse8 .cse2 .cse10) (and .cse14 .cse1 .cse4 .cse11) (and .cse3 .cse4 .cse11 .cse15 .cse5 .cse10) (and .cse12 .cse0 .cse1 .cse8 .cse2) (not (<= 1 |old(~a21~0)|)) (and .cse12 (= ~a20~0 |old(~a20~0)|) (not (= ~a21~0 1)) .cse8 .cse9 (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 .cse4 .cse10 .cse16 .cse5) (and .cse6 .cse1 .cse7 .cse9 .cse4 .cse16) (not .cse6) (not (<= |old(~a7~0)| 0)) (and .cse9 .cse3 .cse4 .cse15 .cse10 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse8 .cse7 .cse2 .cse4 .cse10) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse7 .cse4 .cse16 .cse5) (and .cse14 .cse13 .cse1 .cse4 .cse16) (and .cse13 .cse8 .cse10 .cse16) (and .cse8 .cse9 .cse4 .cse3 .cse15)))) [2020-08-22 00:38:47,441 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-22 00:38:47,442 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-22 00:38:47,442 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse12 (= ~a7~0 1))) (let ((.cse11 (= 5 ~a16~0)) (.cse6 (= ~a12~0 8)) (.cse0 (= ~a16~0 6)) (.cse7 (<= ~a7~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse14 (<= 14 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse13 (<= ~a16~0 5)) (.cse10 (= ~a17~0 1)) (.cse16 (<= ~a20~0 0)) (.cse8 (= ~a8~0 13)) (.cse9 (= ~a16~0 4)) (.cse4 (<= 1 ~a21~0)) (.cse3 (not .cse12)) (.cse15 (not .cse2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse4) (and .cse6 .cse7 .cse2 .cse9 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a8~0 |old(~a8~0)|) .cse11) (and .cse6 .cse1 .cse7 .cse2 .cse9 .cse4) (and .cse12 .cse13 .cse8 .cse2 .cse10) (and .cse14 .cse1 .cse4 .cse11) (and .cse3 .cse4 .cse11 .cse15 .cse5 .cse10) (and .cse12 .cse0 .cse1 .cse8 .cse2) (not (<= 1 |old(~a21~0)|)) (and .cse12 (= ~a20~0 |old(~a20~0)|) (not (= ~a21~0 1)) .cse8 .cse9 (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 .cse4 .cse10 .cse16 .cse5) (and .cse6 .cse1 .cse7 .cse9 .cse4 .cse16) (not .cse6) (not (<= |old(~a7~0)| 0)) (and .cse9 .cse3 .cse4 .cse15 .cse10 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse8 .cse7 .cse2 .cse4 .cse10) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse7 .cse4 .cse16 .cse5) (and .cse14 .cse13 .cse1 .cse4 .cse16) (and .cse13 .cse8 .cse10 .cse16) (and .cse8 .cse9 .cse4 .cse3 .cse15)))) [2020-08-22 00:38:47,442 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-22 00:38:47,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 12:38:47 BoogieIcfgContainer [2020-08-22 00:38:47,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 00:38:47,469 INFO L168 Benchmark]: Toolchain (without parser) took 44136.32 ms. Allocated memory was 137.4 MB in the beginning and 949.5 MB in the end (delta: 812.1 MB). Free memory was 98.4 MB in the beginning and 134.1 MB in the end (delta: -35.8 MB). Peak memory consumption was 785.4 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:47,469 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 00:38:47,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.65 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 98.2 MB in the beginning and 168.0 MB in the end (delta: -69.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:47,471 INFO L168 Benchmark]: Boogie Preprocessor took 119.13 ms. Allocated memory is still 202.4 MB. Free memory was 168.0 MB in the beginning and 162.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:47,471 INFO L168 Benchmark]: RCFGBuilder took 1372.64 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 162.8 MB in the beginning and 176.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:47,472 INFO L168 Benchmark]: TraceAbstraction took 41790.71 ms. Allocated memory was 231.2 MB in the beginning and 949.5 MB in the end (delta: 718.3 MB). Free memory was 176.4 MB in the beginning and 134.1 MB in the end (delta: 42.3 MB). Peak memory consumption was 769.5 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:47,475 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 848.65 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 98.2 MB in the beginning and 168.0 MB in the end (delta: -69.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.13 ms. Allocated memory is still 202.4 MB. Free memory was 168.0 MB in the beginning and 162.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1372.64 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 162.8 MB in the beginning and 176.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41790.71 ms. Allocated memory was 231.2 MB in the beginning and 949.5 MB in the end (delta: 718.3 MB). Free memory was 176.4 MB in the beginning and 134.1 MB in the end (delta: 42.3 MB). Peak memory consumption was 769.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a16 == 6 && a17 <= 0) && a20 == 1) && !(a7 == 1)) && 1 <= a21) && 15 <= a8) || (((((a12 == 8 && a7 <= 0) && a8 == 13) && a20 == 1) && a16 == 4) && 1 <= a21)) || (((((a12 == 8 && a7 <= 0) && a20 == 1) && a16 == 4) && 1 <= a21) && a17 == 1)) || !(\old(a20) == 1)) || ((((a7 == \old(a7) && a17 == \old(a17)) && a21 == \old(a21)) && a8 == \old(a8)) && 5 == a16)) || (((((a12 == 8 && a17 <= 0) && a7 <= 0) && a20 == 1) && a16 == 4) && 1 <= a21)) || ((((a7 == 1 && a16 <= 5) && a8 == 13) && a20 == 1) && a17 == 1)) || (((14 <= a8 && a17 <= 0) && 1 <= a21) && 5 == a16)) || (((((!(a7 == 1) && 1 <= a21) && 5 == a16) && !(a20 == 1)) && 15 <= a8) && a17 == 1)) || ((((a7 == 1 && a16 == 6) && a17 <= 0) && a8 == 13) && a20 == 1)) || !(1 <= \old(a21))) || (((((a7 == 1 && a20 == \old(a20)) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 0)) || !(5 == \old(a16))) || (((((a16 == 6 && a7 <= 0) && 1 <= a21) && a17 == 1) && a20 <= 0) && 15 <= a8)) || (((((a12 == 8 && a17 <= 0) && a7 <= 0) && a16 == 4) && 1 <= a21) && a20 <= 0)) || !(a12 == 8)) || !(\old(a7) <= 0)) || (((((a16 == 4 && !(a7 == 1)) && 1 <= a21) && !(a20 == 1)) && a17 == 1) && 15 <= a8)) || !(\old(a17) == 1)) || (((((a16 == 6 && a8 == 13) && a7 <= 0) && a20 == 1) && 1 <= a21) && a17 == 1)) || !(15 <= \old(a8))) || (((((a16 == 6 && a17 <= 0) && a7 <= 0) && 1 <= a21) && a20 <= 0) && 15 <= a8)) || ((((14 <= a8 && a16 <= 5) && a17 <= 0) && 1 <= a21) && a20 <= 0)) || (((a16 <= 5 && a8 == 13) && a17 == 1) && a20 <= 0)) || ((((a8 == 13 && a16 == 4) && 1 <= a21) && !(a7 == 1)) && !(a20 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.4s, OverallIterations: 16, TraceHistogramMax: 7, AutomataDifference: 27.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 487 SDtfs, 10981 SDslu, 677 SDs, 0 SdLazy, 15843 SolverSat, 2374 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 410 GetRequests, 228 SyntacticMatches, 4 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7406occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 2073 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 450 PreInvPairs, 528 NumberOfFragments, 1650 HoareAnnotationTreeSize, 450 FomulaSimplifications, 157403 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 33192 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 3774 NumberOfCodeBlocks, 3774 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3758 ConstructedInterpolants, 0 QuantifiedInterpolants, 2788865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 3698/3974 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...