/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:22:53,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:22:53,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:22:53,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:22:53,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:22:53,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:22:53,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:22:53,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:22:53,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:22:53,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:22:53,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:22:53,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:22:53,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:22:53,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:22:53,548 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:22:53,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:22:53,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:22:53,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:22:53,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:22:53,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:22:53,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:22:53,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:22:53,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:22:53,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:22:53,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 13:22:53,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:22:53,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:22:53,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:22:53,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 13:22:53,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:22:53,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:22:53,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:22:53,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:22:53,646 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:22:53,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:22:53,647 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:22:53,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:22:53,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:22:53,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:22:53,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:22:53,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:22:53,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:22:53,650 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:22:53,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:22:53,650 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:22:53,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:22:53,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:22:53,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:22:53,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:22:53,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:22:53,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:22:53,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:22:53,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:22:53,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:22:53,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:22:53,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:22:53,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:22:53,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:22:53,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-21 13:22:53,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:22:53,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:22:53,993 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:22:53,995 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:22:53,995 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:22:53,996 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-08-21 13:22:54,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f9fc78d7/f23db9a35b5f45b09fbdf77c70e72bf8/FLAG86be5131a [2020-08-21 13:22:54,636 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:22:54,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-08-21 13:22:54,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f9fc78d7/f23db9a35b5f45b09fbdf77c70e72bf8/FLAG86be5131a [2020-08-21 13:22:54,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f9fc78d7/f23db9a35b5f45b09fbdf77c70e72bf8 [2020-08-21 13:22:54,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:22:54,865 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:22:54,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:22:54,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:22:54,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:22:54,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:22:54" (1/1) ... [2020-08-21 13:22:54,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dadf5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:54, skipping insertion in model container [2020-08-21 13:22:54,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:22:54" (1/1) ... [2020-08-21 13:22:54,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:22:54,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:22:55,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:22:55,355 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:22:55,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:22:55,590 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:22:55,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55 WrapperNode [2020-08-21 13:22:55,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:22:55,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:22:55,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:22:55,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:22:55,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55" (1/1) ... [2020-08-21 13:22:55,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55" (1/1) ... [2020-08-21 13:22:55,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55" (1/1) ... [2020-08-21 13:22:55,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55" (1/1) ... [2020-08-21 13:22:55,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55" (1/1) ... [2020-08-21 13:22:55,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55" (1/1) ... [2020-08-21 13:22:55,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55" (1/1) ... [2020-08-21 13:22:55,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:22:55,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:22:55,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:22:55,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:22:55,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:22:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:22:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:22:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 13:22:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:22:55,816 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 13:22:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:22:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:22:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 13:22:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:22:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:22:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:22:57,196 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:22:57,197 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 13:22:57,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:22:57 BoogieIcfgContainer [2020-08-21 13:22:57,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:22:57,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:22:57,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:22:57,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:22:57,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:22:54" (1/3) ... [2020-08-21 13:22:57,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b147d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:22:57, skipping insertion in model container [2020-08-21 13:22:57,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:22:55" (2/3) ... [2020-08-21 13:22:57,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b147d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:22:57, skipping insertion in model container [2020-08-21 13:22:57,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:22:57" (3/3) ... [2020-08-21 13:22:57,212 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label13.c [2020-08-21 13:22:57,223 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:22:57,233 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:22:57,250 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:22:57,283 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:22:57,283 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:22:57,283 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:22:57,283 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:22:57,283 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:22:57,284 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:22:57,284 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:22:57,284 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:22:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-21 13:22:57,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-21 13:22:57,322 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:22:57,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:22:57,324 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:22:57,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:22:57,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1614181646, now seen corresponding path program 1 times [2020-08-21 13:22:57,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:22:57,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608978362] [2020-08-21 13:22:57,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:22:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:57,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:22:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:22:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:22:57,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608978362] [2020-08-21 13:22:57,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:22:57,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 13:22:57,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954866055] [2020-08-21 13:22:57,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 13:22:57,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:22:57,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 13:22:57,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:22:57,772 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-08-21 13:23:00,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:00,008 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-08-21 13:23:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 13:23:00,010 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 61 [2020-08-21 13:23:00,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:00,031 INFO L225 Difference]: With dead ends: 730 [2020-08-21 13:23:00,032 INFO L226 Difference]: Without dead ends: 447 [2020-08-21 13:23:00,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 13:23:00,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-21 13:23:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-08-21 13:23:00,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-21 13:23:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-08-21 13:23:00,138 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 61 [2020-08-21 13:23:00,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:00,139 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-08-21 13:23:00,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 13:23:00,140 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-08-21 13:23:00,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-08-21 13:23:00,151 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:00,152 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:00,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:23:00,152 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:00,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:00,153 INFO L82 PathProgramCache]: Analyzing trace with hash 562524769, now seen corresponding path program 1 times [2020-08-21 13:23:00,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:00,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715639840] [2020-08-21 13:23:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:00,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:00,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:23:00,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715639840] [2020-08-21 13:23:00,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:23:00,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 13:23:00,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658274996] [2020-08-21 13:23:00,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 13:23:00,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:00,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 13:23:00,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 13:23:00,611 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 7 states. [2020-08-21 13:23:02,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:02,048 INFO L93 Difference]: Finished difference Result 1033 states and 1590 transitions. [2020-08-21 13:23:02,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 13:23:02,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 180 [2020-08-21 13:23:02,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:02,055 INFO L225 Difference]: With dead ends: 1033 [2020-08-21 13:23:02,055 INFO L226 Difference]: Without dead ends: 598 [2020-08-21 13:23:02,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-21 13:23:02,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-08-21 13:23:02,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 590. [2020-08-21 13:23:02,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-08-21 13:23:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 865 transitions. [2020-08-21 13:23:02,108 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 865 transitions. Word has length 180 [2020-08-21 13:23:02,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:02,109 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 865 transitions. [2020-08-21 13:23:02,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 13:23:02,110 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 865 transitions. [2020-08-21 13:23:02,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-08-21 13:23:02,121 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:02,121 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:02,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:23:02,122 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:02,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:02,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1013955258, now seen corresponding path program 1 times [2020-08-21 13:23:02,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:02,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872395361] [2020-08-21 13:23:02,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:02,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:02,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:02,423 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:23:02,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872395361] [2020-08-21 13:23:02,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:23:02,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 13:23:02,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6369620] [2020-08-21 13:23:02,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:23:02,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:02,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:23:02,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:23:02,434 INFO L87 Difference]: Start difference. First operand 590 states and 865 transitions. Second operand 8 states. [2020-08-21 13:23:03,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:03,999 INFO L93 Difference]: Finished difference Result 1343 states and 2016 transitions. [2020-08-21 13:23:04,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 13:23:04,001 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-08-21 13:23:04,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:04,013 INFO L225 Difference]: With dead ends: 1343 [2020-08-21 13:23:04,013 INFO L226 Difference]: Without dead ends: 759 [2020-08-21 13:23:04,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-21 13:23:04,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-08-21 13:23:04,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 741. [2020-08-21 13:23:04,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-08-21 13:23:04,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1015 transitions. [2020-08-21 13:23:04,080 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1015 transitions. Word has length 187 [2020-08-21 13:23:04,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:04,083 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 1015 transitions. [2020-08-21 13:23:04,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:23:04,083 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1015 transitions. [2020-08-21 13:23:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-08-21 13:23:04,099 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:04,099 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:04,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:23:04,102 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:04,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:04,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1373393371, now seen corresponding path program 1 times [2020-08-21 13:23:04,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:04,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584101927] [2020-08-21 13:23:04,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:04,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:04,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:04,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 13:23:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:04,666 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 13:23:04,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584101927] [2020-08-21 13:23:04,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:04,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 13:23:04,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682538893] [2020-08-21 13:23:04,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 13:23:04,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:04,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 13:23:04,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-21 13:23:04,669 INFO L87 Difference]: Start difference. First operand 741 states and 1015 transitions. Second operand 12 states. [2020-08-21 13:23:08,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:08,362 INFO L93 Difference]: Finished difference Result 2158 states and 3394 transitions. [2020-08-21 13:23:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-21 13:23:08,364 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 250 [2020-08-21 13:23:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:08,381 INFO L225 Difference]: With dead ends: 2158 [2020-08-21 13:23:08,382 INFO L226 Difference]: Without dead ends: 1566 [2020-08-21 13:23:08,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2020-08-21 13:23:08,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2020-08-21 13:23:08,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1053. [2020-08-21 13:23:08,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2020-08-21 13:23:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1412 transitions. [2020-08-21 13:23:08,470 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1412 transitions. Word has length 250 [2020-08-21 13:23:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:08,471 INFO L479 AbstractCegarLoop]: Abstraction has 1053 states and 1412 transitions. [2020-08-21 13:23:08,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 13:23:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1412 transitions. [2020-08-21 13:23:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-21 13:23:08,478 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:08,478 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:08,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:23:08,479 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:08,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:08,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1982775645, now seen corresponding path program 1 times [2020-08-21 13:23:08,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:08,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109067028] [2020-08-21 13:23:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:08,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:08,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:08,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 13:23:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:08,845 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 108 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-21 13:23:08,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109067028] [2020-08-21 13:23:08,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:08,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 13:23:08,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001300402] [2020-08-21 13:23:08,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:23:08,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:08,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:23:08,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:23:08,849 INFO L87 Difference]: Start difference. First operand 1053 states and 1412 transitions. Second operand 8 states. [2020-08-21 13:23:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:11,306 INFO L93 Difference]: Finished difference Result 2857 states and 4053 transitions. [2020-08-21 13:23:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 13:23:11,306 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2020-08-21 13:23:11,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:11,317 INFO L225 Difference]: With dead ends: 2857 [2020-08-21 13:23:11,317 INFO L226 Difference]: Without dead ends: 1953 [2020-08-21 13:23:11,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-21 13:23:11,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2020-08-21 13:23:11,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1941. [2020-08-21 13:23:11,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1941 states. [2020-08-21 13:23:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1941 states to 1941 states and 2513 transitions. [2020-08-21 13:23:11,385 INFO L78 Accepts]: Start accepts. Automaton has 1941 states and 2513 transitions. Word has length 254 [2020-08-21 13:23:11,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:11,385 INFO L479 AbstractCegarLoop]: Abstraction has 1941 states and 2513 transitions. [2020-08-21 13:23:11,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:23:11,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1941 states and 2513 transitions. [2020-08-21 13:23:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-08-21 13:23:11,392 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:11,392 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:11,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:23:11,393 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:11,394 INFO L82 PathProgramCache]: Analyzing trace with hash 584536702, now seen corresponding path program 1 times [2020-08-21 13:23:11,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:11,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726710769] [2020-08-21 13:23:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:11,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:11,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:11,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 13:23:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 112 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 13:23:11,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726710769] [2020-08-21 13:23:11,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:11,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 13:23:11,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226938716] [2020-08-21 13:23:11,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 13:23:11,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:11,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 13:23:11,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 13:23:11,858 INFO L87 Difference]: Start difference. First operand 1941 states and 2513 transitions. Second operand 10 states. [2020-08-21 13:23:15,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:15,426 INFO L93 Difference]: Finished difference Result 4928 states and 6582 transitions. [2020-08-21 13:23:15,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-21 13:23:15,430 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 259 [2020-08-21 13:23:15,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:15,445 INFO L225 Difference]: With dead ends: 4928 [2020-08-21 13:23:15,445 INFO L226 Difference]: Without dead ends: 3109 [2020-08-21 13:23:15,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-08-21 13:23:15,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-08-21 13:23:15,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2382. [2020-08-21 13:23:15,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2382 states. [2020-08-21 13:23:15,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3153 transitions. [2020-08-21 13:23:15,541 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3153 transitions. Word has length 259 [2020-08-21 13:23:15,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:15,542 INFO L479 AbstractCegarLoop]: Abstraction has 2382 states and 3153 transitions. [2020-08-21 13:23:15,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 13:23:15,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3153 transitions. [2020-08-21 13:23:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-08-21 13:23:15,550 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:15,550 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:15,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 13:23:15,551 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:15,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:15,551 INFO L82 PathProgramCache]: Analyzing trace with hash 356382198, now seen corresponding path program 1 times [2020-08-21 13:23:15,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:15,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297037066] [2020-08-21 13:23:15,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:15,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:15,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:15,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 13:23:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 220 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 13:23:15,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297037066] [2020-08-21 13:23:15,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:15,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 13:23:15,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247081325] [2020-08-21 13:23:15,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 13:23:15,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:15,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 13:23:15,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-21 13:23:15,972 INFO L87 Difference]: Start difference. First operand 2382 states and 3153 transitions. Second operand 9 states. [2020-08-21 13:23:18,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:18,661 INFO L93 Difference]: Finished difference Result 5070 states and 6800 transitions. [2020-08-21 13:23:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 13:23:18,662 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 295 [2020-08-21 13:23:18,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:18,676 INFO L225 Difference]: With dead ends: 5070 [2020-08-21 13:23:18,676 INFO L226 Difference]: Without dead ends: 2837 [2020-08-21 13:23:18,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2020-08-21 13:23:18,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2020-08-21 13:23:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 2831. [2020-08-21 13:23:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2831 states. [2020-08-21 13:23:18,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 3700 transitions. [2020-08-21 13:23:18,812 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 3700 transitions. Word has length 295 [2020-08-21 13:23:18,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:18,813 INFO L479 AbstractCegarLoop]: Abstraction has 2831 states and 3700 transitions. [2020-08-21 13:23:18,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 13:23:18,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 3700 transitions. [2020-08-21 13:23:18,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-08-21 13:23:18,824 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:18,824 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:18,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 13:23:18,825 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:18,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:18,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1887083094, now seen corresponding path program 1 times [2020-08-21 13:23:18,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:18,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025509406] [2020-08-21 13:23:18,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:18,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:18,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:19,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 13:23:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:19,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-08-21 13:23:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:19,227 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 345 proven. 8 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-08-21 13:23:19,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025509406] [2020-08-21 13:23:19,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:19,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 13:23:19,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485642485] [2020-08-21 13:23:19,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 13:23:19,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:19,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 13:23:19,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 13:23:19,230 INFO L87 Difference]: Start difference. First operand 2831 states and 3700 transitions. Second operand 9 states. [2020-08-21 13:23:22,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:22,353 INFO L93 Difference]: Finished difference Result 6812 states and 8958 transitions. [2020-08-21 13:23:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 13:23:22,354 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 367 [2020-08-21 13:23:22,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:22,367 INFO L225 Difference]: With dead ends: 6812 [2020-08-21 13:23:22,367 INFO L226 Difference]: Without dead ends: 3240 [2020-08-21 13:23:22,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2020-08-21 13:23:22,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3240 states. [2020-08-21 13:23:22,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3240 to 2378. [2020-08-21 13:23:22,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2378 states. [2020-08-21 13:23:22,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 2771 transitions. [2020-08-21 13:23:22,446 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 2771 transitions. Word has length 367 [2020-08-21 13:23:22,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:22,447 INFO L479 AbstractCegarLoop]: Abstraction has 2378 states and 2771 transitions. [2020-08-21 13:23:22,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 13:23:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 2771 transitions. [2020-08-21 13:23:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-08-21 13:23:22,454 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:22,455 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:22,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 13:23:22,455 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:22,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash -467387859, now seen corresponding path program 1 times [2020-08-21 13:23:22,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:22,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064043114] [2020-08-21 13:23:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:22,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:22,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:22,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 13:23:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:22,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-08-21 13:23:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:23,101 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 237 proven. 187 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-21 13:23:23,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064043114] [2020-08-21 13:23:23,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:23,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 13:23:23,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989262288] [2020-08-21 13:23:23,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 13:23:23,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:23,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 13:23:23,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-21 13:23:23,109 INFO L87 Difference]: Start difference. First operand 2378 states and 2771 transitions. Second operand 11 states. [2020-08-21 13:23:27,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:27,126 INFO L93 Difference]: Finished difference Result 5211 states and 6202 transitions. [2020-08-21 13:23:27,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-21 13:23:27,127 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 372 [2020-08-21 13:23:27,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:27,139 INFO L225 Difference]: With dead ends: 5211 [2020-08-21 13:23:27,139 INFO L226 Difference]: Without dead ends: 3129 [2020-08-21 13:23:27,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2020-08-21 13:23:27,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2020-08-21 13:23:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 3117. [2020-08-21 13:23:27,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3117 states. [2020-08-21 13:23:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 3563 transitions. [2020-08-21 13:23:27,219 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 3563 transitions. Word has length 372 [2020-08-21 13:23:27,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:27,220 INFO L479 AbstractCegarLoop]: Abstraction has 3117 states and 3563 transitions. [2020-08-21 13:23:27,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 13:23:27,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 3563 transitions. [2020-08-21 13:23:27,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-08-21 13:23:27,229 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:27,230 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:27,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 13:23:27,230 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:27,231 INFO L82 PathProgramCache]: Analyzing trace with hash -115602834, now seen corresponding path program 1 times [2020-08-21 13:23:27,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:27,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635409610] [2020-08-21 13:23:27,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:27,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:27,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:27,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 13:23:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:27,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-21 13:23:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 167 proven. 188 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-08-21 13:23:28,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [635409610] [2020-08-21 13:23:28,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:28,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-21 13:23:28,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655248051] [2020-08-21 13:23:28,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-21 13:23:28,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:28,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-21 13:23:28,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-08-21 13:23:28,252 INFO L87 Difference]: Start difference. First operand 3117 states and 3563 transitions. Second operand 14 states. [2020-08-21 13:23:33,914 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-08-21 13:23:34,386 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2020-08-21 13:23:34,970 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-08-21 13:23:35,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:35,804 INFO L93 Difference]: Finished difference Result 6550 states and 7619 transitions. [2020-08-21 13:23:35,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-08-21 13:23:35,805 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 383 [2020-08-21 13:23:35,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:35,816 INFO L225 Difference]: With dead ends: 6550 [2020-08-21 13:23:35,816 INFO L226 Difference]: Without dead ends: 3731 [2020-08-21 13:23:35,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=575, Invalid=2395, Unknown=0, NotChecked=0, Total=2970 [2020-08-21 13:23:35,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2020-08-21 13:23:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3709. [2020-08-21 13:23:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3709 states. [2020-08-21 13:23:35,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3709 states to 3709 states and 4242 transitions. [2020-08-21 13:23:35,904 INFO L78 Accepts]: Start accepts. Automaton has 3709 states and 4242 transitions. Word has length 383 [2020-08-21 13:23:35,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:35,905 INFO L479 AbstractCegarLoop]: Abstraction has 3709 states and 4242 transitions. [2020-08-21 13:23:35,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-21 13:23:35,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3709 states and 4242 transitions. [2020-08-21 13:23:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-08-21 13:23:35,914 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:23:35,914 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:23:35,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 13:23:35,915 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:23:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:23:35,915 INFO L82 PathProgramCache]: Analyzing trace with hash -145294626, now seen corresponding path program 1 times [2020-08-21 13:23:35,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:23:35,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1001438182] [2020-08-21 13:23:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:23:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:36,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:23:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:36,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 13:23:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:36,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-21 13:23:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:36,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-08-21 13:23:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:23:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 165 proven. 3 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-08-21 13:23:36,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1001438182] [2020-08-21 13:23:36,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:23:36,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 13:23:36,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18271878] [2020-08-21 13:23:36,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 13:23:36,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:23:36,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 13:23:36,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:23:36,279 INFO L87 Difference]: Start difference. First operand 3709 states and 4242 transitions. Second operand 5 states. [2020-08-21 13:23:37,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:23:37,467 INFO L93 Difference]: Finished difference Result 7267 states and 8379 transitions. [2020-08-21 13:23:37,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 13:23:37,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 391 [2020-08-21 13:23:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:23:37,469 INFO L225 Difference]: With dead ends: 7267 [2020-08-21 13:23:37,470 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 13:23:37,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 13:23:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 13:23:37,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 13:23:37,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 13:23:37,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 13:23:37,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 391 [2020-08-21 13:23:37,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:23:37,483 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 13:23:37,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 13:23:37,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 13:23:37,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 13:23:37,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 13:23:37,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 13:23:38,329 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 193 [2020-08-21 13:23:38,643 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 193 [2020-08-21 13:23:39,770 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 45 [2020-08-21 13:23:40,612 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 58 [2020-08-21 13:23:41,378 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 58 [2020-08-21 13:23:41,383 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:23:41,384 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-08-21 13:23:41,384 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:23:41,384 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-21 13:23:41,385 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,385 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,385 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,385 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,385 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,386 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,386 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-21 13:23:41,386 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-21 13:23:41,386 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-21 13:23:41,386 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-21 13:23:41,386 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-21 13:23:41,386 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-21 13:23:41,386 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-21 13:23:41,387 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-21 13:23:41,387 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-21 13:23:41,387 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-21 13:23:41,387 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-21 13:23:41,387 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,387 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,387 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,388 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,388 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,388 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-21 13:23:41,388 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-21 13:23:41,388 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-21 13:23:41,388 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-21 13:23:41,388 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-21 13:23:41,388 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-21 13:23:41,389 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-21 13:23:41,389 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-21 13:23:41,389 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-21 13:23:41,389 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-21 13:23:41,389 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-21 13:23:41,389 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-21 13:23:41,389 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-21 13:23:41,390 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2020-08-21 13:23:41,390 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-21 13:23:41,390 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,390 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,390 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,390 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,390 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,390 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-21 13:23:41,391 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-21 13:23:41,391 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-21 13:23:41,391 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-21 13:23:41,391 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-21 13:23:41,391 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-21 13:23:41,391 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-21 13:23:41,392 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-21 13:23:41,392 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-21 13:23:41,392 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-21 13:23:41,392 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,392 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,392 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,392 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,393 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,393 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-21 13:23:41,393 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-21 13:23:41,393 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-21 13:23:41,393 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-21 13:23:41,393 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-21 13:23:41,393 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-21 13:23:41,394 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-21 13:23:41,394 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-21 13:23:41,394 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-21 13:23:41,394 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-21 13:23:41,394 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-21 13:23:41,394 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-21 13:23:41,394 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-21 13:23:41,395 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,395 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,395 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,395 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,395 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,395 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-21 13:23:41,395 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-21 13:23:41,395 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-21 13:23:41,396 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-21 13:23:41,396 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-21 13:23:41,396 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-21 13:23:41,396 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-21 13:23:41,396 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-21 13:23:41,396 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-21 13:23:41,396 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,396 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,397 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,397 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,397 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,397 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,397 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,397 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-21 13:23:41,397 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-21 13:23:41,397 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-21 13:23:41,398 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-21 13:23:41,398 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-21 13:23:41,398 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-21 13:23:41,398 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-21 13:23:41,398 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-21 13:23:41,398 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-21 13:23:41,398 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-21 13:23:41,398 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-21 13:23:41,399 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-21 13:23:41,399 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-21 13:23:41,399 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,399 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,399 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,399 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,399 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-21 13:23:41,400 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,400 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,400 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-21 13:23:41,400 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-21 13:23:41,400 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-21 13:23:41,400 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-21 13:23:41,400 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-21 13:23:41,400 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-21 13:23:41,401 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-21 13:23:41,401 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-21 13:23:41,401 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-21 13:23:41,401 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-21 13:23:41,401 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-21 13:23:41,401 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-21 13:23:41,401 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-21 13:23:41,401 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,402 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,402 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,402 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,402 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,402 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,402 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-21 13:23:41,402 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-21 13:23:41,402 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-21 13:23:41,403 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-21 13:23:41,403 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-21 13:23:41,403 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-21 13:23:41,403 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-21 13:23:41,403 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-21 13:23:41,403 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-21 13:23:41,403 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-21 13:23:41,403 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-21 13:23:41,407 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse4 (= 3 |old(~a10~0)|)) (.cse1 (not (<= |old(~a19~0)| 9))) (.cse2 (not (= 14 ~a4~0))) (.cse3 (not (= ~a12~0 0)))) (and (or .cse0 .cse1 .cse2 (not (<= |old(~a1~0)| 33)) .cse3) (or .cse0 (not (= 9 |old(~a19~0)|)) .cse2 .cse3) (or (not (<= 10 |old(~a19~0)|)) .cse0 .cse4 (= 4 |old(~a10~0)|) .cse2 .cse3) (or (= 6 |old(~a19~0)|) .cse0 .cse4 .cse1 .cse2 .cse3))) [2020-08-21 13:23:41,407 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-21 13:23:41,407 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-21 13:23:41,407 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-21 13:23:41,408 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,408 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,408 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,408 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,408 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,408 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,408 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-21 13:23:41,408 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-21 13:23:41,408 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-21 13:23:41,409 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-21 13:23:41,410 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-21 13:23:41,411 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-21 13:23:41,411 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-21 13:23:41,411 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-21 13:23:41,411 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-21 13:23:41,411 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-21 13:23:41,411 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-21 13:23:41,411 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-21 13:23:41,411 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-21 13:23:41,411 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,412 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,412 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,412 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,412 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,412 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,412 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-21 13:23:41,412 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-21 13:23:41,412 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-21 13:23:41,413 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-21 13:23:41,413 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-21 13:23:41,413 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-21 13:23:41,413 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-21 13:23:41,413 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-21 13:23:41,413 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-21 13:23:41,413 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-21 13:23:41,413 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-21 13:23:41,413 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-21 13:23:41,414 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,416 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,416 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,416 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,416 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,416 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 13:23:41,416 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-21 13:23:41,416 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-21 13:23:41,417 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-21 13:23:41,417 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-21 13:23:41,417 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-21 13:23:41,417 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-21 13:23:41,417 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-21 13:23:41,417 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-21 13:23:41,417 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-21 13:23:41,417 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-21 13:23:41,417 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-21 13:23:41,418 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-21 13:23:41,418 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 13:23:41,418 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= 14 ~a4~0) (<= 9 ~a19~0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-08-21 13:23:41,418 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 13:23:41,418 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 13:23:41,418 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-08-21 13:23:41,419 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-21 13:23:41,419 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (not (= ~a10~0 3))) (.cse3 (not (= ~a19~0 9))) (.cse1 (<= ~a1~0 23)) (.cse0 (<= ~a19~0 9)) (.cse4 (= 0 |old(~a10~0)|))) (or (and (<= 23 ~a1~0) .cse0 .cse1 (= ~a10~0 |old(~a10~0)|)) (and .cse2 .cse3 (not (= ~a19~0 6)) .cse0) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (= ~a19~0 |old(~a19~0)|) .cse4) (and (not (= ~a10~0 4)) .cse2 (<= 10 ~a19~0) .cse4) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse2 .cse3 .cse0 .cse1) (and (<= ~a1~0 33) .cse0 .cse4))) [2020-08-21 13:23:41,419 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-21 13:23:41,419 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-21 13:23:41,419 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse2 (not (= ~a10~0 3))) (.cse3 (not (= ~a19~0 9))) (.cse1 (<= ~a1~0 23)) (.cse0 (<= ~a19~0 9)) (.cse4 (= 0 |old(~a10~0)|))) (or (and (<= 23 ~a1~0) .cse0 .cse1 (= ~a10~0 |old(~a10~0)|)) (and .cse2 .cse3 (not (= ~a19~0 6)) .cse0) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (= ~a19~0 |old(~a19~0)|) .cse4) (and (not (= ~a10~0 4)) .cse2 (<= 10 ~a19~0) .cse4) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse2 .cse3 .cse0 .cse1) (and (<= ~a1~0 33) .cse0 .cse4))) [2020-08-21 13:23:41,420 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-21 13:23:41,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:23:41 BoogieIcfgContainer [2020-08-21 13:23:41,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:23:41,477 INFO L168 Benchmark]: Toolchain (without parser) took 46612.38 ms. Allocated memory was 140.5 MB in the beginning and 661.1 MB in the end (delta: 520.6 MB). Free memory was 102.2 MB in the beginning and 484.7 MB in the end (delta: -382.5 MB). Peak memory consumption was 537.4 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:41,477 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 13:23:41,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.65 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 102.0 MB in the beginning and 172.9 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:41,481 INFO L168 Benchmark]: Boogie Preprocessor took 116.36 ms. Allocated memory is still 206.0 MB. Free memory was 172.9 MB in the beginning and 168.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:41,482 INFO L168 Benchmark]: RCFGBuilder took 1492.02 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 180.0 MB in the end (delta: -11.9 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:41,486 INFO L168 Benchmark]: TraceAbstraction took 44267.85 ms. Allocated memory was 238.6 MB in the beginning and 661.1 MB in the end (delta: 422.6 MB). Free memory was 180.0 MB in the beginning and 484.7 MB in the end (delta: -304.7 MB). Peak memory consumption was 517.1 MB. Max. memory is 7.1 GB. [2020-08-21 13:23:41,494 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.65 ms. Allocated memory was 140.5 MB in the beginning and 206.0 MB in the end (delta: 65.5 MB). Free memory was 102.0 MB in the beginning and 172.9 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.36 ms. Allocated memory is still 206.0 MB. Free memory was 172.9 MB in the beginning and 168.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1492.02 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 168.0 MB in the beginning and 180.0 MB in the end (delta: -11.9 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44267.85 ms. Allocated memory was 238.6 MB in the beginning and 661.1 MB in the end (delta: 422.6 MB). Free memory was 180.0 MB in the beginning and 484.7 MB in the end (delta: -304.7 MB). Peak memory consumption was 517.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((((((((((23 <= a1 && a19 <= 9) && a1 <= 23) && a10 == \old(a10)) || (((!(a10 == 3) && !(a19 == 9)) && !(a19 == 6)) && a19 <= 9)) || !(a12 == 0)) || !(23 <= \old(a1))) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (a19 == \old(a19) && 0 == \old(a10))) || (((!(a10 == 4) && !(a10 == 3)) && 10 <= a19) && 0 == \old(a10))) || !(\old(a1) <= 23)) || !(14 == a4)) || !(\old(a19) <= 9)) || (((!(a10 == 3) && !(a19 == 9)) && a19 <= 9) && a1 <= 23)) || ((a1 <= 33 && a19 <= 9) && 0 == \old(a10)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 40.2s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 33.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 9573 SDslu, 666 SDs, 0 SdLazy, 18405 SolverSat, 3313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3709occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 2186 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 159 PreInvPairs, 227 NumberOfFragments, 418 HoareAnnotationTreeSize, 159 FomulaSimplifications, 55716 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16111 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2999 NumberOfCodeBlocks, 2999 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2988 ConstructedInterpolants, 0 QuantifiedInterpolants, 3043214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 2053/2586 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...