/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/Problem01_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 15:30:25,695 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 15:30:25,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 15:30:25,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 15:30:25,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 15:30:25,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 15:30:25,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 15:30:25,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 15:30:25,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 15:30:25,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 15:30:25,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 15:30:25,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 15:30:25,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 15:30:25,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 15:30:25,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 15:30:25,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 15:30:25,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 15:30:25,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 15:30:25,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 15:30:25,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 15:30:25,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 15:30:25,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 15:30:25,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 15:30:25,839 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 15:30:25,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 15:30:25,839 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 15:30:25,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 15:30:25,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 15:30:25,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 15:30:25,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 15:30:25,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 15:30:25,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 15:30:25,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 15:30:25,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 15:30:25,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 15:30:25,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 15:30:25,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 15:30:25,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 15:30:25,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 15:30:25,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 15:30:25,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:30:25,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 15:30:25,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 15:30:25,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 15:30:25,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 15:30:25,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 15:30:25,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 15:30:25,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 15:30:25,843 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 [2020-08-18 15:30:26,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 15:30:26,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 15:30:26,200 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 15:30:26,202 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 15:30:26,202 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 15:30:26,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-18 15:30:26,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66990de85/0883f0172a29466bba165c42a56f66b9/FLAGd730044cb [2020-08-18 15:30:26,874 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 15:30:26,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-18 15:30:26,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66990de85/0883f0172a29466bba165c42a56f66b9/FLAGd730044cb [2020-08-18 15:30:27,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66990de85/0883f0172a29466bba165c42a56f66b9 [2020-08-18 15:30:27,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 15:30:27,139 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 15:30:27,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 15:30:27,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 15:30:27,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 15:30:27,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:30:27" (1/1) ... [2020-08-18 15:30:27,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1dceb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:27, skipping insertion in model container [2020-08-18 15:30:27,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 03:30:27" (1/1) ... [2020-08-18 15:30:27,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 15:30:27,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 15:30:27,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:30:27,723 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 15:30:27,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 15:30:28,016 INFO L208 MainTranslator]: Completed translation [2020-08-18 15:30:28,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28 WrapperNode [2020-08-18 15:30:28,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 15:30:28,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 15:30:28,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 15:30:28,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 15:30:28,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28" (1/1) ... [2020-08-18 15:30:28,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28" (1/1) ... [2020-08-18 15:30:28,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28" (1/1) ... [2020-08-18 15:30:28,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28" (1/1) ... [2020-08-18 15:30:28,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28" (1/1) ... [2020-08-18 15:30:28,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28" (1/1) ... [2020-08-18 15:30:28,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28" (1/1) ... [2020-08-18 15:30:28,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 15:30:28,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 15:30:28,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 15:30:28,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 15:30:28,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 15:30:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 15:30:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 15:30:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 15:30:28,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 15:30:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 15:30:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 15:30:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 15:30:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 15:30:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 15:30:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 15:30:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 15:30:29,364 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 15:30:29,365 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 15:30:29,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:30:29 BoogieIcfgContainer [2020-08-18 15:30:29,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 15:30:29,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 15:30:29,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 15:30:29,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 15:30:29,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 03:30:27" (1/3) ... [2020-08-18 15:30:29,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37908ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:30:29, skipping insertion in model container [2020-08-18 15:30:29,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 03:30:28" (2/3) ... [2020-08-18 15:30:29,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37908ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 03:30:29, skipping insertion in model container [2020-08-18 15:30:29,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 03:30:29" (3/3) ... [2020-08-18 15:30:29,388 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-08-18 15:30:29,399 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 15:30:29,411 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 15:30:29,425 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 15:30:29,458 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 15:30:29,458 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 15:30:29,458 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 15:30:29,459 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 15:30:29,459 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 15:30:29,459 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 15:30:29,459 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 15:30:29,459 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 15:30:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-18 15:30:29,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-08-18 15:30:29,494 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:29,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:29,496 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:29,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:29,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2020-08-18 15:30:29,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:29,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677483370] [2020-08-18 15:30:29,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:30,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:30:30,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677483370] [2020-08-18 15:30:30,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:30:30,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 15:30:30,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125555405] [2020-08-18 15:30:30,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 15:30:30,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:30,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 15:30:30,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 15:30:30,139 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-18 15:30:32,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:32,181 INFO L93 Difference]: Finished difference Result 723 states and 1255 transitions. [2020-08-18 15:30:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 15:30:32,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-08-18 15:30:32,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:32,203 INFO L225 Difference]: With dead ends: 723 [2020-08-18 15:30:32,204 INFO L226 Difference]: Without dead ends: 423 [2020-08-18 15:30:32,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:30:32,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-18 15:30:32,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-18 15:30:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-18 15:30:32,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 584 transitions. [2020-08-18 15:30:32,317 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 584 transitions. Word has length 122 [2020-08-18 15:30:32,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:32,318 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 584 transitions. [2020-08-18 15:30:32,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 15:30:32,319 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 584 transitions. [2020-08-18 15:30:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-18 15:30:32,325 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:32,325 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:32,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 15:30:32,326 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:32,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:32,326 INFO L82 PathProgramCache]: Analyzing trace with hash -259733235, now seen corresponding path program 1 times [2020-08-18 15:30:32,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:32,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461547514] [2020-08-18 15:30:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:32,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:32,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:32,578 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:30:32,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461547514] [2020-08-18 15:30:32,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 15:30:32,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 15:30:32,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123493277] [2020-08-18 15:30:32,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 15:30:32,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:32,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 15:30:32,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:30:32,583 INFO L87 Difference]: Start difference. First operand 417 states and 584 transitions. Second operand 8 states. [2020-08-18 15:30:33,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:33,960 INFO L93 Difference]: Finished difference Result 1269 states and 1843 transitions. [2020-08-18 15:30:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 15:30:33,961 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-08-18 15:30:33,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:33,970 INFO L225 Difference]: With dead ends: 1269 [2020-08-18 15:30:33,971 INFO L226 Difference]: Without dead ends: 858 [2020-08-18 15:30:33,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:30:33,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-08-18 15:30:34,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 834. [2020-08-18 15:30:34,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-08-18 15:30:34,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1168 transitions. [2020-08-18 15:30:34,040 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1168 transitions. Word has length 132 [2020-08-18 15:30:34,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:34,040 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1168 transitions. [2020-08-18 15:30:34,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 15:30:34,040 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1168 transitions. [2020-08-18 15:30:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-08-18 15:30:34,047 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:34,047 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:34,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 15:30:34,048 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:34,048 INFO L82 PathProgramCache]: Analyzing trace with hash 2082377679, now seen corresponding path program 1 times [2020-08-18 15:30:34,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:34,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325222824] [2020-08-18 15:30:34,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:34,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:34,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:30:34,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325222824] [2020-08-18 15:30:34,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:34,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 15:30:34,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860776755] [2020-08-18 15:30:34,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 15:30:34,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:34,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 15:30:34,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:30:34,441 INFO L87 Difference]: Start difference. First operand 834 states and 1168 transitions. Second operand 6 states. [2020-08-18 15:30:35,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:35,638 INFO L93 Difference]: Finished difference Result 1769 states and 2519 transitions. [2020-08-18 15:30:35,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 15:30:35,639 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-08-18 15:30:35,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:35,646 INFO L225 Difference]: With dead ends: 1769 [2020-08-18 15:30:35,647 INFO L226 Difference]: Without dead ends: 840 [2020-08-18 15:30:35,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:30:35,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2020-08-18 15:30:35,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 832. [2020-08-18 15:30:35,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-08-18 15:30:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1059 transitions. [2020-08-18 15:30:35,722 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1059 transitions. Word has length 133 [2020-08-18 15:30:35,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:35,723 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1059 transitions. [2020-08-18 15:30:35,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 15:30:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1059 transitions. [2020-08-18 15:30:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-08-18 15:30:35,735 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:35,736 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:35,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 15:30:35,737 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:35,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:35,737 INFO L82 PathProgramCache]: Analyzing trace with hash 394249543, now seen corresponding path program 1 times [2020-08-18 15:30:35,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:35,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502428920] [2020-08-18 15:30:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:36,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:36,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:36,071 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 15:30:36,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502428920] [2020-08-18 15:30:36,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:36,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 15:30:36,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385566000] [2020-08-18 15:30:36,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 15:30:36,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:36,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 15:30:36,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 15:30:36,076 INFO L87 Difference]: Start difference. First operand 832 states and 1059 transitions. Second operand 5 states. [2020-08-18 15:30:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:36,947 INFO L93 Difference]: Finished difference Result 2079 states and 2683 transitions. [2020-08-18 15:30:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 15:30:36,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-08-18 15:30:36,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:36,955 INFO L225 Difference]: With dead ends: 2079 [2020-08-18 15:30:36,955 INFO L226 Difference]: Without dead ends: 1253 [2020-08-18 15:30:36,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:30:36,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-08-18 15:30:37,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1243. [2020-08-18 15:30:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1243 states. [2020-08-18 15:30:37,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1550 transitions. [2020-08-18 15:30:37,027 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1550 transitions. Word has length 137 [2020-08-18 15:30:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:37,028 INFO L479 AbstractCegarLoop]: Abstraction has 1243 states and 1550 transitions. [2020-08-18 15:30:37,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 15:30:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1550 transitions. [2020-08-18 15:30:37,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-08-18 15:30:37,033 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:37,033 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:37,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 15:30:37,034 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:37,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:37,035 INFO L82 PathProgramCache]: Analyzing trace with hash 706222219, now seen corresponding path program 1 times [2020-08-18 15:30:37,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:37,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934355918] [2020-08-18 15:30:37,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:37,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:37,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:37,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-18 15:30:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:37,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 15:30:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:37,223 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-08-18 15:30:37,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934355918] [2020-08-18 15:30:37,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:37,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 15:30:37,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505401450] [2020-08-18 15:30:37,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 15:30:37,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:37,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 15:30:37,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:30:37,226 INFO L87 Difference]: Start difference. First operand 1243 states and 1550 transitions. Second operand 7 states. [2020-08-18 15:30:38,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:38,844 INFO L93 Difference]: Finished difference Result 3360 states and 4273 transitions. [2020-08-18 15:30:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 15:30:38,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-08-18 15:30:38,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:38,856 INFO L225 Difference]: With dead ends: 3360 [2020-08-18 15:30:38,857 INFO L226 Difference]: Without dead ends: 2123 [2020-08-18 15:30:38,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:30:38,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2020-08-18 15:30:38,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 1962. [2020-08-18 15:30:38,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-08-18 15:30:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2370 transitions. [2020-08-18 15:30:38,934 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2370 transitions. Word has length 181 [2020-08-18 15:30:38,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:38,935 INFO L479 AbstractCegarLoop]: Abstraction has 1962 states and 2370 transitions. [2020-08-18 15:30:38,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 15:30:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2370 transitions. [2020-08-18 15:30:38,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-08-18 15:30:38,949 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:38,950 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:38,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 15:30:38,952 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:38,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:38,953 INFO L82 PathProgramCache]: Analyzing trace with hash 853819156, now seen corresponding path program 1 times [2020-08-18 15:30:38,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:38,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582142610] [2020-08-18 15:30:38,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:39,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:39,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:39,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 15:30:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:39,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 15:30:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:39,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-18 15:30:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:39,159 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 75 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-08-18 15:30:39,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582142610] [2020-08-18 15:30:39,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:39,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 15:30:39,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831297111] [2020-08-18 15:30:39,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 15:30:39,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:39,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 15:30:39,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:30:39,173 INFO L87 Difference]: Start difference. First operand 1962 states and 2370 transitions. Second operand 7 states. [2020-08-18 15:30:40,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:40,409 INFO L93 Difference]: Finished difference Result 5487 states and 6885 transitions. [2020-08-18 15:30:40,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 15:30:40,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-08-18 15:30:40,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:40,430 INFO L225 Difference]: With dead ends: 5487 [2020-08-18 15:30:40,430 INFO L226 Difference]: Without dead ends: 3531 [2020-08-18 15:30:40,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:30:40,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2020-08-18 15:30:40,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3360. [2020-08-18 15:30:40,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3360 states. [2020-08-18 15:30:40,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4099 transitions. [2020-08-18 15:30:40,546 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4099 transitions. Word has length 196 [2020-08-18 15:30:40,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:40,547 INFO L479 AbstractCegarLoop]: Abstraction has 3360 states and 4099 transitions. [2020-08-18 15:30:40,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 15:30:40,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4099 transitions. [2020-08-18 15:30:40,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-18 15:30:40,558 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:40,559 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:40,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 15:30:40,559 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:40,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:40,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1458466897, now seen corresponding path program 1 times [2020-08-18 15:30:40,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:40,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355810569] [2020-08-18 15:30:40,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:40,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:40,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:40,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 15:30:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:40,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 15:30:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 80 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-08-18 15:30:40,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355810569] [2020-08-18 15:30:40,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:40,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 15:30:40,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064041646] [2020-08-18 15:30:40,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 15:30:40,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:40,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 15:30:40,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:30:40,803 INFO L87 Difference]: Start difference. First operand 3360 states and 4099 transitions. Second operand 7 states. [2020-08-18 15:30:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:42,207 INFO L93 Difference]: Finished difference Result 7002 states and 8519 transitions. [2020-08-18 15:30:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 15:30:42,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-08-18 15:30:42,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:42,225 INFO L225 Difference]: With dead ends: 7002 [2020-08-18 15:30:42,225 INFO L226 Difference]: Without dead ends: 3648 [2020-08-18 15:30:42,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:30:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2020-08-18 15:30:42,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3646. [2020-08-18 15:30:42,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3646 states. [2020-08-18 15:30:42,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 4303 transitions. [2020-08-18 15:30:42,338 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 4303 transitions. Word has length 195 [2020-08-18 15:30:42,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:42,339 INFO L479 AbstractCegarLoop]: Abstraction has 3646 states and 4303 transitions. [2020-08-18 15:30:42,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 15:30:42,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 4303 transitions. [2020-08-18 15:30:42,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-08-18 15:30:42,352 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:42,352 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:42,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 15:30:42,353 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:42,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:42,353 INFO L82 PathProgramCache]: Analyzing trace with hash 426210850, now seen corresponding path program 1 times [2020-08-18 15:30:42,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:42,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094052981] [2020-08-18 15:30:42,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:42,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:42,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:42,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-18 15:30:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:42,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 15:30:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:42,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 15:30:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:42,583 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 122 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-08-18 15:30:42,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094052981] [2020-08-18 15:30:42,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:42,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 15:30:42,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154850187] [2020-08-18 15:30:42,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 15:30:42,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:42,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 15:30:42,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:30:42,585 INFO L87 Difference]: Start difference. First operand 3646 states and 4303 transitions. Second operand 7 states. [2020-08-18 15:30:43,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:43,890 INFO L93 Difference]: Finished difference Result 7167 states and 8462 transitions. [2020-08-18 15:30:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 15:30:43,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-08-18 15:30:43,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:43,908 INFO L225 Difference]: With dead ends: 7167 [2020-08-18 15:30:43,908 INFO L226 Difference]: Without dead ends: 3662 [2020-08-18 15:30:43,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-18 15:30:43,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2020-08-18 15:30:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3656. [2020-08-18 15:30:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3656 states. [2020-08-18 15:30:44,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 4209 transitions. [2020-08-18 15:30:44,013 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 4209 transitions. Word has length 232 [2020-08-18 15:30:44,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:44,014 INFO L479 AbstractCegarLoop]: Abstraction has 3656 states and 4209 transitions. [2020-08-18 15:30:44,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 15:30:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 4209 transitions. [2020-08-18 15:30:44,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-08-18 15:30:44,031 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:44,031 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:44,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 15:30:44,032 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:44,032 INFO L82 PathProgramCache]: Analyzing trace with hash 604394622, now seen corresponding path program 1 times [2020-08-18 15:30:44,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:44,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615292909] [2020-08-18 15:30:44,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:44,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:44,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:44,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 15:30:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:44,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 15:30:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:44,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 15:30:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:44,353 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 147 proven. 39 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-08-18 15:30:44,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615292909] [2020-08-18 15:30:44,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:44,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 15:30:44,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284421673] [2020-08-18 15:30:44,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 15:30:44,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:44,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 15:30:44,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:30:44,361 INFO L87 Difference]: Start difference. First operand 3656 states and 4209 transitions. Second operand 9 states. [2020-08-18 15:30:48,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:48,510 INFO L93 Difference]: Finished difference Result 11217 states and 13877 transitions. [2020-08-18 15:30:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-18 15:30:48,512 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2020-08-18 15:30:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:48,552 INFO L225 Difference]: With dead ends: 11217 [2020-08-18 15:30:48,552 INFO L226 Difference]: Without dead ends: 7702 [2020-08-18 15:30:48,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2020-08-18 15:30:48,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7702 states. [2020-08-18 15:30:48,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7702 to 7406. [2020-08-18 15:30:48,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7406 states. [2020-08-18 15:30:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 9126 transitions. [2020-08-18 15:30:48,790 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 9126 transitions. Word has length 246 [2020-08-18 15:30:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:48,790 INFO L479 AbstractCegarLoop]: Abstraction has 7406 states and 9126 transitions. [2020-08-18 15:30:48,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 15:30:48,791 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 9126 transitions. [2020-08-18 15:30:48,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-08-18 15:30:48,827 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:48,828 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:48,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 15:30:48,828 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:48,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:48,829 INFO L82 PathProgramCache]: Analyzing trace with hash -763457286, now seen corresponding path program 1 times [2020-08-18 15:30:48,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:48,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351981392] [2020-08-18 15:30:48,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:49,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:49,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 15:30:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:49,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 15:30:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:49,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-18 15:30:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 171 proven. 27 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-08-18 15:30:49,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351981392] [2020-08-18 15:30:49,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:49,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 15:30:49,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132143112] [2020-08-18 15:30:49,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 15:30:49,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:49,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 15:30:49,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-18 15:30:49,306 INFO L87 Difference]: Start difference. First operand 7406 states and 9126 transitions. Second operand 10 states. [2020-08-18 15:30:49,951 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-08-18 15:30:51,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:51,881 INFO L93 Difference]: Finished difference Result 14172 states and 17050 transitions. [2020-08-18 15:30:51,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 15:30:51,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 276 [2020-08-18 15:30:51,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:51,906 INFO L225 Difference]: With dead ends: 14172 [2020-08-18 15:30:51,906 INFO L226 Difference]: Without dead ends: 6907 [2020-08-18 15:30:51,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-08-18 15:30:51,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6907 states. [2020-08-18 15:30:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6907 to 6883. [2020-08-18 15:30:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6883 states. [2020-08-18 15:30:52,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6883 states to 6883 states and 7945 transitions. [2020-08-18 15:30:52,070 INFO L78 Accepts]: Start accepts. Automaton has 6883 states and 7945 transitions. Word has length 276 [2020-08-18 15:30:52,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:52,071 INFO L479 AbstractCegarLoop]: Abstraction has 6883 states and 7945 transitions. [2020-08-18 15:30:52,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 15:30:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 6883 states and 7945 transitions. [2020-08-18 15:30:52,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-08-18 15:30:52,096 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:52,097 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:52,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 15:30:52,098 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:52,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:52,098 INFO L82 PathProgramCache]: Analyzing trace with hash 2075847519, now seen corresponding path program 1 times [2020-08-18 15:30:52,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:52,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661225065] [2020-08-18 15:30:52,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:52,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:52,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:52,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 15:30:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:52,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 15:30:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:52,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-18 15:30:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:52,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-18 15:30:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:52,526 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 225 proven. 31 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-08-18 15:30:52,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661225065] [2020-08-18 15:30:52,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:52,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 15:30:52,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570709104] [2020-08-18 15:30:52,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 15:30:52,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:52,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 15:30:52,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:30:52,530 INFO L87 Difference]: Start difference. First operand 6883 states and 7945 transitions. Second operand 9 states. [2020-08-18 15:30:54,231 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-08-18 15:30:54,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:54,647 INFO L93 Difference]: Finished difference Result 13655 states and 15775 transitions. [2020-08-18 15:30:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 15:30:54,651 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 289 [2020-08-18 15:30:54,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:54,673 INFO L225 Difference]: With dead ends: 13655 [2020-08-18 15:30:54,673 INFO L226 Difference]: Without dead ends: 6913 [2020-08-18 15:30:54,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-08-18 15:30:54,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2020-08-18 15:30:54,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6885. [2020-08-18 15:30:54,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6885 states. [2020-08-18 15:30:54,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 7926 transitions. [2020-08-18 15:30:54,816 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 7926 transitions. Word has length 289 [2020-08-18 15:30:54,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:54,817 INFO L479 AbstractCegarLoop]: Abstraction has 6885 states and 7926 transitions. [2020-08-18 15:30:54,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 15:30:54,817 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 7926 transitions. [2020-08-18 15:30:54,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-08-18 15:30:54,836 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:54,836 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:54,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 15:30:54,837 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:54,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:54,837 INFO L82 PathProgramCache]: Analyzing trace with hash -394947665, now seen corresponding path program 1 times [2020-08-18 15:30:54,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:54,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359072996] [2020-08-18 15:30:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:55,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:55,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:55,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 15:30:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:55,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 15:30:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:55,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-18 15:30:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:55,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-18 15:30:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:55,231 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 262 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-08-18 15:30:55,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359072996] [2020-08-18 15:30:55,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:55,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 15:30:55,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829056211] [2020-08-18 15:30:55,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 15:30:55,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:55,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 15:30:55,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:30:55,234 INFO L87 Difference]: Start difference. First operand 6885 states and 7926 transitions. Second operand 8 states. [2020-08-18 15:30:56,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:56,433 INFO L93 Difference]: Finished difference Result 13538 states and 15450 transitions. [2020-08-18 15:30:56,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 15:30:56,433 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 308 [2020-08-18 15:30:56,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:56,452 INFO L225 Difference]: With dead ends: 13538 [2020-08-18 15:30:56,453 INFO L226 Difference]: Without dead ends: 6796 [2020-08-18 15:30:56,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:30:56,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6796 states. [2020-08-18 15:30:56,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6796 to 6053. [2020-08-18 15:30:56,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6053 states. [2020-08-18 15:30:56,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6053 states to 6053 states and 6739 transitions. [2020-08-18 15:30:56,579 INFO L78 Accepts]: Start accepts. Automaton has 6053 states and 6739 transitions. Word has length 308 [2020-08-18 15:30:56,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:56,580 INFO L479 AbstractCegarLoop]: Abstraction has 6053 states and 6739 transitions. [2020-08-18 15:30:56,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 15:30:56,580 INFO L276 IsEmpty]: Start isEmpty. Operand 6053 states and 6739 transitions. [2020-08-18 15:30:56,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-08-18 15:30:56,596 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:56,596 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:56,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-18 15:30:56,597 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:56,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:56,597 INFO L82 PathProgramCache]: Analyzing trace with hash 874817583, now seen corresponding path program 1 times [2020-08-18 15:30:56,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:56,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345407975] [2020-08-18 15:30:56,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:56,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:56,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:56,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 15:30:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:56,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 15:30:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:56,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-18 15:30:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:56,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-18 15:30:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:56,965 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 198 proven. 5 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-08-18 15:30:56,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345407975] [2020-08-18 15:30:56,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:56,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 15:30:56,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758532544] [2020-08-18 15:30:56,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 15:30:56,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:56,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 15:30:56,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 15:30:56,968 INFO L87 Difference]: Start difference. First operand 6053 states and 6739 transitions. Second operand 5 states. [2020-08-18 15:30:57,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:57,926 INFO L93 Difference]: Finished difference Result 12515 states and 13928 transitions. [2020-08-18 15:30:57,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 15:30:57,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 313 [2020-08-18 15:30:57,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:57,940 INFO L225 Difference]: With dead ends: 12515 [2020-08-18 15:30:57,941 INFO L226 Difference]: Without dead ends: 5497 [2020-08-18 15:30:57,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:30:57,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2020-08-18 15:30:58,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 5344. [2020-08-18 15:30:58,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5344 states. [2020-08-18 15:30:58,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5826 transitions. [2020-08-18 15:30:58,062 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5826 transitions. Word has length 313 [2020-08-18 15:30:58,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:58,063 INFO L479 AbstractCegarLoop]: Abstraction has 5344 states and 5826 transitions. [2020-08-18 15:30:58,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 15:30:58,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5826 transitions. [2020-08-18 15:30:58,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-08-18 15:30:58,082 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:58,082 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:58,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-18 15:30:58,083 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:58,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:58,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1264462194, now seen corresponding path program 1 times [2020-08-18 15:30:58,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:58,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277069689] [2020-08-18 15:30:58,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:30:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:58,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:30:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:58,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:30:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:58,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 15:30:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:58,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 15:30:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:58,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-18 15:30:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:58,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-18 15:30:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:58,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-18 15:30:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:30:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 184 proven. 21 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2020-08-18 15:30:58,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277069689] [2020-08-18 15:30:58,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:30:58,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 15:30:58,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760257316] [2020-08-18 15:30:58,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 15:30:58,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:30:58,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 15:30:58,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 15:30:58,571 INFO L87 Difference]: Start difference. First operand 5344 states and 5826 transitions. Second operand 6 states. [2020-08-18 15:30:59,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:30:59,842 INFO L93 Difference]: Finished difference Result 5904 states and 6477 transitions. [2020-08-18 15:30:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 15:30:59,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 318 [2020-08-18 15:30:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:30:59,855 INFO L225 Difference]: With dead ends: 5904 [2020-08-18 15:30:59,855 INFO L226 Difference]: Without dead ends: 5902 [2020-08-18 15:30:59,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-18 15:30:59,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2020-08-18 15:30:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 5479. [2020-08-18 15:30:59,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-08-18 15:30:59,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 5996 transitions. [2020-08-18 15:30:59,948 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 5996 transitions. Word has length 318 [2020-08-18 15:30:59,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:30:59,948 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 5996 transitions. [2020-08-18 15:30:59,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 15:30:59,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 5996 transitions. [2020-08-18 15:30:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-08-18 15:30:59,963 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:30:59,963 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:30:59,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-18 15:30:59,963 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:30:59,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:30:59,964 INFO L82 PathProgramCache]: Analyzing trace with hash 41074506, now seen corresponding path program 1 times [2020-08-18 15:30:59,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:30:59,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748062715] [2020-08-18 15:30:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:31:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:00,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:31:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:00,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:31:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:00,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 15:31:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:00,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 15:31:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:00,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-18 15:31:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:00,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-18 15:31:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:00,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-18 15:31:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:00,503 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 357 proven. 25 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-08-18 15:31:00,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748062715] [2020-08-18 15:31:00,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:31:00,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-18 15:31:00,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14409086] [2020-08-18 15:31:00,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 15:31:00,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:31:00,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 15:31:00,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-18 15:31:00,506 INFO L87 Difference]: Start difference. First operand 5479 states and 5996 transitions. Second operand 12 states. [2020-08-18 15:31:00,898 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-08-18 15:31:01,388 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-08-18 15:31:02,661 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-08-18 15:31:03,203 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-08-18 15:31:03,963 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-08-18 15:31:04,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:31:04,548 INFO L93 Difference]: Finished difference Result 10259 states and 11214 transitions. [2020-08-18 15:31:04,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-18 15:31:04,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 338 [2020-08-18 15:31:04,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:31:04,562 INFO L225 Difference]: With dead ends: 10259 [2020-08-18 15:31:04,562 INFO L226 Difference]: Without dead ends: 4923 [2020-08-18 15:31:04,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2020-08-18 15:31:04,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2020-08-18 15:31:04,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4905. [2020-08-18 15:31:04,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4905 states. [2020-08-18 15:31:04,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4905 states to 4905 states and 5319 transitions. [2020-08-18 15:31:04,683 INFO L78 Accepts]: Start accepts. Automaton has 4905 states and 5319 transitions. Word has length 338 [2020-08-18 15:31:04,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:31:04,684 INFO L479 AbstractCegarLoop]: Abstraction has 4905 states and 5319 transitions. [2020-08-18 15:31:04,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 15:31:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 4905 states and 5319 transitions. [2020-08-18 15:31:04,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-08-18 15:31:04,712 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 15:31:04,713 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 15:31:04,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-18 15:31:04,713 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 15:31:04,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 15:31:04,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1269018866, now seen corresponding path program 1 times [2020-08-18 15:31:04,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 15:31:04,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788878609] [2020-08-18 15:31:04,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 15:31:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:05,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 15:31:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 15:31:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:05,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 15:31:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:05,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 15:31:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:05,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-18 15:31:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:05,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-18 15:31:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:05,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-18 15:31:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 15:31:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 224 proven. 24 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2020-08-18 15:31:05,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788878609] [2020-08-18 15:31:05,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 15:31:05,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 15:31:05,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127930302] [2020-08-18 15:31:05,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 15:31:05,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 15:31:05,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 15:31:05,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 15:31:05,330 INFO L87 Difference]: Start difference. First operand 4905 states and 5319 transitions. Second operand 7 states. [2020-08-18 15:31:06,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 15:31:06,500 INFO L93 Difference]: Finished difference Result 8974 states and 9763 transitions. [2020-08-18 15:31:06,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 15:31:06,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 358 [2020-08-18 15:31:06,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 15:31:06,502 INFO L225 Difference]: With dead ends: 8974 [2020-08-18 15:31:06,502 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 15:31:06,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-18 15:31:06,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 15:31:06,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 15:31:06,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 15:31:06,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 15:31:06,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 358 [2020-08-18 15:31:06,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 15:31:06,515 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 15:31:06,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 15:31:06,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 15:31:06,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 15:31:06,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-18 15:31:06,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 15:31:07,451 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 215 [2020-08-18 15:31:07,805 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 215 [2020-08-18 15:31:08,011 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 40 [2020-08-18 15:31:10,144 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 243 DAG size of output: 99 [2020-08-18 15:31:11,648 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 211 DAG size of output: 87 [2020-08-18 15:31:13,112 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 211 DAG size of output: 87 [2020-08-18 15:31:13,116 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 15:31:13,117 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-18 15:31:13,117 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 15:31:13,117 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-18 15:31:13,117 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-18 15:31:13,117 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,117 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,117 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,118 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,118 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,118 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,118 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-18 15:31:13,118 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-18 15:31:13,118 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-18 15:31:13,118 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-18 15:31:13,118 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-18 15:31:13,119 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-18 15:31:13,119 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-18 15:31:13,119 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-18 15:31:13,119 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-18 15:31:13,119 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-18 15:31:13,120 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,120 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,120 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,120 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,120 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,120 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,121 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-18 15:31:13,121 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-18 15:31:13,121 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-18 15:31:13,121 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-18 15:31:13,121 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-18 15:31:13,121 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-18 15:31:13,121 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-18 15:31:13,121 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-18 15:31:13,121 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-18 15:31:13,122 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-18 15:31:13,122 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-18 15:31:13,122 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2020-08-18 15:31:13,122 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-18 15:31:13,122 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-18 15:31:13,122 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-18 15:31:13,122 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-18 15:31:13,122 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,122 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,123 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,123 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,123 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,123 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-18 15:31:13,123 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-18 15:31:13,123 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-18 15:31:13,123 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-18 15:31:13,123 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-18 15:31:13,124 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-18 15:31:13,124 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-18 15:31:13,124 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-18 15:31:13,124 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-18 15:31:13,124 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,124 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,124 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,125 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,125 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,125 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-18 15:31:13,126 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-18 15:31:13,126 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-18 15:31:13,126 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-18 15:31:13,127 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-18 15:31:13,127 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-18 15:31:13,127 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-18 15:31:13,127 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-18 15:31:13,127 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-18 15:31:13,127 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-18 15:31:13,127 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-18 15:31:13,127 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-18 15:31:13,127 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-18 15:31:13,128 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,129 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,130 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-18 15:31:13,130 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,130 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-18 15:31:13,130 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-18 15:31:13,130 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-18 15:31:13,130 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-18 15:31:13,130 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,131 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,132 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,132 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,132 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,133 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-18 15:31:13,133 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-18 15:31:13,133 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-18 15:31:13,133 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-18 15:31:13,134 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-18 15:31:13,134 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-18 15:31:13,134 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-18 15:31:13,134 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-18 15:31:13,134 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,134 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,134 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,134 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,135 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,135 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-18 15:31:13,135 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-18 15:31:13,135 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-18 15:31:13,136 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-18 15:31:13,136 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-18 15:31:13,136 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-18 15:31:13,136 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-18 15:31:13,136 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-18 15:31:13,136 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-18 15:31:13,136 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-18 15:31:13,137 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse13 (= |old(~a20~0)| 1)) (.cse15 (= |old(~a7~0)| 1)) (.cse6 (= ~a16~0 |old(~a16~0)|)) (.cse28 (= ~a8~0 13)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a21~0 |old(~a21~0)|)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse7 (= ~a8~0 |old(~a8~0)|)) (.cse29 (= ~a16~0 4))) (let ((.cse18 (not (<= 14 |old(~a8~0)|))) (.cse22 (and .cse3 .cse2 .cse4 .cse5 .cse7 .cse29)) (.cse19 (not (<= |old(~a16~0)| 5))) (.cse23 (and .cse3 .cse2 .cse4 .cse5 .cse7 (= 5 ~a16~0))) (.cse24 (not (= 5 |old(~a16~0)|))) (.cse26 (and .cse3 .cse2 .cse4 .cse5 .cse6 .cse28)) (.cse8 (not (<= |old(~a17~0)| 0))) (.cse16 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= |old(~a7~0)| 0))) (.cse17 (not (<= 15 |old(~a8~0)|))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse25 (not (= 6 |old(~a16~0)|))) (.cse20 (and .cse3 .cse2 .cse4 .cse5 .cse6 .cse7)) (.cse10 (not (<= |old(~a20~0)| 0))) (.cse12 (not (= |old(~a8~0)| 13))) (.cse27 (not .cse15)) (.cse14 (and .cse3 .cse2 .cse4 .cse5 .cse28 .cse29)) (.cse21 (not .cse13)) (.cse9 (not (= ~a12~0 8))) (.cse11 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10 .cse11) (or .cse12 .cse13 .cse1 .cse14 .cse9 .cse11 .cse15) (or (and .cse3 .cse4 .cse5 .cse6 .cse7 (= ~a17~0 1)) .cse16 .cse13 .cse17 .cse1 .cse9 .cse11 .cse15) (or .cse18 .cse19 .cse1 .cse20 .cse8 .cse9 .cse10) (or .cse16 .cse0 .cse19 .cse1 .cse21 .cse22 .cse9 .cse11) (or .cse18 .cse1 .cse23 .cse8 .cse24 .cse9) (or .cse17 .cse1 .cse25 .cse21 .cse20 .cse8 .cse9 .cse15) (or .cse0 .cse17 .cse1 .cse25 .cse8 .cse20 .cse9 .cse10) (or .cse12 .cse16 .cse26 .cse19 .cse27 .cse21 .cse9) (or .cse12 .cse16 .cse0 .cse26 .cse1 .cse25 .cse21 .cse9) (or .cse12 .cse0 .cse1 .cse14 .cse21 .cse9 .cse11) (or .cse16 .cse13 .cse17 .cse1 .cse23 .cse24 .cse9 .cse15) (or .cse0 .cse1 .cse21 .cse8 .cse22 .cse9 .cse11) (or .cse12 .cse16 .cse26 .cse19 .cse9 .cse10) (or .cse16 .cse0 .cse19 .cse17 .cse1 .cse23 .cse21 .cse24 .cse9) (or .cse12 .cse26 .cse27 .cse25 .cse21 .cse8 .cse9) (or .cse16 .cse0 .cse17 .cse1 .cse25 .cse20 .cse9 .cse10) (or .cse12 .cse27 .cse14 .cse21 (= |old(~a21~0)| 1) .cse9 .cse11 (not (= 0 |old(~a17~0)|)))))) [2020-08-18 15:31:13,137 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-18 15:31:13,137 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,137 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,137 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,138 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,138 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-18 15:31:13,138 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,138 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,138 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-18 15:31:13,138 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-18 15:31:13,138 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-18 15:31:13,138 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-18 15:31:13,138 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,139 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,140 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,140 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,140 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-18 15:31:13,140 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,140 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-18 15:31:13,140 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-18 15:31:13,140 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-18 15:31:13,140 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-18 15:31:13,140 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-18 15:31:13,141 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-18 15:31:13,142 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-18 15:31:13,143 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-18 15:31:13,143 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-18 15:31:13,143 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-18 15:31:13,143 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-18 15:31:13,143 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-18 15:31:13,143 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 15:31:13,143 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (<= ~a7~0 0) (= ~a20~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-18 15:31:13,143 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 15:31:13,143 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 15:31:13,144 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8))) [2020-08-18 15:31:13,144 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-18 15:31:13,144 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse12 (= ~a7~0 1))) (let ((.cse11 (= 5 ~a16~0)) (.cse6 (= ~a12~0 8)) (.cse0 (= ~a16~0 6)) (.cse7 (<= ~a7~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse14 (<= 14 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse13 (<= ~a16~0 5)) (.cse10 (= ~a17~0 1)) (.cse16 (<= ~a20~0 0)) (.cse8 (= ~a8~0 13)) (.cse9 (= ~a16~0 4)) (.cse4 (<= 1 ~a21~0)) (.cse3 (not .cse12)) (.cse15 (not .cse2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse4) (and .cse6 .cse7 .cse2 .cse9 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a8~0 |old(~a8~0)|) .cse11) (and .cse6 .cse1 .cse7 .cse2 .cse9 .cse4) (and .cse12 .cse13 .cse8 .cse2 .cse10) (and .cse14 .cse1 .cse4 .cse11) (and .cse3 .cse4 .cse11 .cse15 .cse5 .cse10) (and .cse12 .cse0 .cse1 .cse8 .cse2) (not (<= 1 |old(~a21~0)|)) (and .cse12 (= ~a20~0 |old(~a20~0)|) (not (= ~a21~0 1)) .cse8 .cse9 (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 .cse4 .cse10 .cse16 .cse5) (and .cse6 .cse1 .cse7 .cse9 .cse4 .cse16) (not .cse6) (not (<= |old(~a7~0)| 0)) (and .cse9 .cse3 .cse4 .cse15 .cse10 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse8 .cse7 .cse2 .cse4 .cse10) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse7 .cse4 .cse16 .cse5) (and .cse14 .cse13 .cse1 .cse4 .cse16) (and .cse13 .cse8 .cse10 .cse16) (and .cse8 .cse9 .cse4 .cse3 .cse15)))) [2020-08-18 15:31:13,144 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-18 15:31:13,144 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-18 15:31:13,145 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse12 (= ~a7~0 1))) (let ((.cse11 (= 5 ~a16~0)) (.cse6 (= ~a12~0 8)) (.cse0 (= ~a16~0 6)) (.cse7 (<= ~a7~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse14 (<= 14 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse13 (<= ~a16~0 5)) (.cse10 (= ~a17~0 1)) (.cse16 (<= ~a20~0 0)) (.cse8 (= ~a8~0 13)) (.cse9 (= ~a16~0 4)) (.cse4 (<= 1 ~a21~0)) (.cse3 (not .cse12)) (.cse15 (not .cse2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse4) (and .cse6 .cse7 .cse2 .cse9 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a8~0 |old(~a8~0)|) .cse11) (and .cse6 .cse1 .cse7 .cse2 .cse9 .cse4) (and .cse12 .cse13 .cse8 .cse2 .cse10) (and .cse14 .cse1 .cse4 .cse11) (and .cse3 .cse4 .cse11 .cse15 .cse5 .cse10) (and .cse12 .cse0 .cse1 .cse8 .cse2) (not (<= 1 |old(~a21~0)|)) (and .cse12 (= ~a20~0 |old(~a20~0)|) (not (= ~a21~0 1)) .cse8 .cse9 (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 .cse4 .cse10 .cse16 .cse5) (and .cse6 .cse1 .cse7 .cse9 .cse4 .cse16) (not .cse6) (not (<= |old(~a7~0)| 0)) (and .cse9 .cse3 .cse4 .cse15 .cse10 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse8 .cse7 .cse2 .cse4 .cse10) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse7 .cse4 .cse16 .cse5) (and .cse14 .cse13 .cse1 .cse4 .cse16) (and .cse13 .cse8 .cse10 .cse16) (and .cse8 .cse9 .cse4 .cse3 .cse15)))) [2020-08-18 15:31:13,145 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-18 15:31:13,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 03:31:13 BoogieIcfgContainer [2020-08-18 15:31:13,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 15:31:13,194 INFO L168 Benchmark]: Toolchain (without parser) took 46055.01 ms. Allocated memory was 138.9 MB in the beginning and 866.6 MB in the end (delta: 727.7 MB). Free memory was 100.0 MB in the beginning and 563.9 MB in the end (delta: -463.9 MB). Peak memory consumption was 704.1 MB. Max. memory is 7.1 GB. [2020-08-18 15:31:13,199 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 15:31:13,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 878.16 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.8 MB in the beginning and 169.3 MB in the end (delta: -69.5 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2020-08-18 15:31:13,200 INFO L168 Benchmark]: Boogie Preprocessor took 100.51 ms. Allocated memory is still 203.4 MB. Free memory was 169.3 MB in the beginning and 164.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-08-18 15:31:13,201 INFO L168 Benchmark]: RCFGBuilder took 1258.75 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 178.4 MB in the end (delta: -14.0 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-08-18 15:31:13,201 INFO L168 Benchmark]: TraceAbstraction took 43811.89 ms. Allocated memory was 235.9 MB in the beginning and 866.6 MB in the end (delta: 630.7 MB). Free memory was 177.0 MB in the beginning and 563.9 MB in the end (delta: -386.9 MB). Peak memory consumption was 684.0 MB. Max. memory is 7.1 GB. [2020-08-18 15:31:13,208 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 878.16 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.8 MB in the beginning and 169.3 MB in the end (delta: -69.5 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.51 ms. Allocated memory is still 203.4 MB. Free memory was 169.3 MB in the beginning and 164.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1258.75 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 178.4 MB in the end (delta: -14.0 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43811.89 ms. Allocated memory was 235.9 MB in the beginning and 866.6 MB in the end (delta: 630.7 MB). Free memory was 177.0 MB in the beginning and 563.9 MB in the end (delta: -386.9 MB). Peak memory consumption was 684.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a16 == 6 && a17 <= 0) && a20 == 1) && !(a7 == 1)) && 1 <= a21) && 15 <= a8) || (((((a12 == 8 && a7 <= 0) && a8 == 13) && a20 == 1) && a16 == 4) && 1 <= a21)) || (((((a12 == 8 && a7 <= 0) && a20 == 1) && a16 == 4) && 1 <= a21) && a17 == 1)) || !(\old(a20) == 1)) || ((((a7 == \old(a7) && a17 == \old(a17)) && a21 == \old(a21)) && a8 == \old(a8)) && 5 == a16)) || (((((a12 == 8 && a17 <= 0) && a7 <= 0) && a20 == 1) && a16 == 4) && 1 <= a21)) || ((((a7 == 1 && a16 <= 5) && a8 == 13) && a20 == 1) && a17 == 1)) || (((14 <= a8 && a17 <= 0) && 1 <= a21) && 5 == a16)) || (((((!(a7 == 1) && 1 <= a21) && 5 == a16) && !(a20 == 1)) && 15 <= a8) && a17 == 1)) || ((((a7 == 1 && a16 == 6) && a17 <= 0) && a8 == 13) && a20 == 1)) || !(1 <= \old(a21))) || (((((a7 == 1 && a20 == \old(a20)) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 0)) || !(5 == \old(a16))) || (((((a16 == 6 && a7 <= 0) && 1 <= a21) && a17 == 1) && a20 <= 0) && 15 <= a8)) || (((((a12 == 8 && a17 <= 0) && a7 <= 0) && a16 == 4) && 1 <= a21) && a20 <= 0)) || !(a12 == 8)) || !(\old(a7) <= 0)) || (((((a16 == 4 && !(a7 == 1)) && 1 <= a21) && !(a20 == 1)) && a17 == 1) && 15 <= a8)) || !(\old(a17) == 1)) || (((((a16 == 6 && a8 == 13) && a7 <= 0) && a20 == 1) && 1 <= a21) && a17 == 1)) || !(15 <= \old(a8))) || (((((a16 == 6 && a17 <= 0) && a7 <= 0) && 1 <= a21) && a20 <= 0) && 15 <= a8)) || ((((14 <= a8 && a16 <= 5) && a17 <= 0) && 1 <= a21) && a20 <= 0)) || (((a16 <= 5 && a8 == 13) && a17 == 1) && a20 <= 0)) || ((((a8 == 13 && a16 == 4) && 1 <= a21) && !(a7 == 1)) && !(a20 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 37.0s, OverallIterations: 16, TraceHistogramMax: 7, AutomataDifference: 28.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 487 SDtfs, 10981 SDslu, 677 SDs, 0 SdLazy, 15843 SolverSat, 2374 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 410 GetRequests, 228 SyntacticMatches, 4 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7406occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 2073 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 450 PreInvPairs, 528 NumberOfFragments, 1650 HoareAnnotationTreeSize, 450 FomulaSimplifications, 157403 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 33192 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 3774 NumberOfCodeBlocks, 3774 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3758 ConstructedInterpolants, 0 QuantifiedInterpolants, 2788865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 3698/3974 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...