/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 00:24:59,150 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-19 00:24:59,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 00:24:59,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 00:24:59,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 00:24:59,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 00:24:59,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 00:24:59,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 00:24:59,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 00:24:59,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 00:24:59,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 00:24:59,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 00:24:59,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 00:24:59,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 00:24:59,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-19 00:24:59,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 00:24:59,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 00:24:59,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 00:24:59,263 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 [2020-08-19 00:24:59,304 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 00:24:59,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 00:24:59,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 00:24:59,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 00:24:59,306 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 00:24:59,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 00:24:59,306 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 00:24:59,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 00:24:59,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 00:24:59,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 00:24:59,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 00:24:59,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 00:24:59,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 00:24:59,309 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 00:24:59,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 00:24:59,309 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 00:24:59,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 00:24:59,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 00:24:59,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 00:24:59,310 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 00:24:59,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 00:24:59,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:24:59,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 00:24:59,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 00:24:59,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 00:24:59,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 00:24:59,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 00:24:59,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 00:24:59,312 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 00:24:59,313 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4; [2020-08-19 00:24:59,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 00:24:59,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 00:24:59,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 00:24:59,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 00:24:59,609 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 00:24:59,610 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-08-19 00:24:59,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aed103c70/190eb71d88894cfcb86526d533511399/FLAG39991c035 [2020-08-19 00:25:00,227 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 00:25:00,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-08-19 00:25:00,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aed103c70/190eb71d88894cfcb86526d533511399/FLAG39991c035 [2020-08-19 00:25:00,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aed103c70/190eb71d88894cfcb86526d533511399 [2020-08-19 00:25:00,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 00:25:00,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 00:25:00,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 00:25:00,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 00:25:00,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 00:25:00,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:25:00" (1/1) ... [2020-08-19 00:25:00,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743cee4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:00, skipping insertion in model container [2020-08-19 00:25:00,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:25:00" (1/1) ... [2020-08-19 00:25:00,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 00:25:00,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 00:25:01,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:25:01,273 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 00:25:01,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:25:01,465 INFO L208 MainTranslator]: Completed translation [2020-08-19 00:25:01,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01 WrapperNode [2020-08-19 00:25:01,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 00:25:01,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 00:25:01,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 00:25:01,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 00:25:01,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01" (1/1) ... [2020-08-19 00:25:01,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01" (1/1) ... [2020-08-19 00:25:01,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01" (1/1) ... [2020-08-19 00:25:01,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01" (1/1) ... [2020-08-19 00:25:01,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01" (1/1) ... [2020-08-19 00:25:01,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01" (1/1) ... [2020-08-19 00:25:01,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01" (1/1) ... [2020-08-19 00:25:01,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 00:25:01,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 00:25:01,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 00:25:01,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 00:25:01,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01" (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 [2020-08-19 00:25:01,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 00:25:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 00:25:01,715 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-19 00:25:01,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 00:25:01,716 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-19 00:25:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 00:25:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 00:25:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-19 00:25:01,717 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 00:25:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 00:25:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 00:25:03,384 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 00:25:03,384 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-19 00:25:03,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:25:03 BoogieIcfgContainer [2020-08-19 00:25:03,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 00:25:03,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 00:25:03,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 00:25:03,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 00:25:03,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:25:00" (1/3) ... [2020-08-19 00:25:03,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71aa22fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:25:03, skipping insertion in model container [2020-08-19 00:25:03,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:25:01" (2/3) ... [2020-08-19 00:25:03,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71aa22fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:25:03, skipping insertion in model container [2020-08-19 00:25:03,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:25:03" (3/3) ... [2020-08-19 00:25:03,399 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label01.c [2020-08-19 00:25:03,409 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 00:25:03,416 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 00:25:03,429 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 00:25:03,453 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 00:25:03,454 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 00:25:03,454 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 00:25:03,454 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 00:25:03,454 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 00:25:03,454 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 00:25:03,455 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 00:25:03,455 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 00:25:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-08-19 00:25:03,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 00:25:03,491 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:03,492 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] [2020-08-19 00:25:03,492 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:03,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:03,498 INFO L82 PathProgramCache]: Analyzing trace with hash -184228989, now seen corresponding path program 1 times [2020-08-19 00:25:03,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:03,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924169950] [2020-08-19 00:25:03,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:03,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:03,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:25:03,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924169950] [2020-08-19 00:25:03,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:25:03,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 00:25:03,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529636034] [2020-08-19 00:25:03,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 00:25:03,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:03,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 00:25:03,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 00:25:03,908 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-08-19 00:25:06,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:06,718 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2020-08-19 00:25:06,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 00:25:06,720 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 00:25:06,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:06,747 INFO L225 Difference]: With dead ends: 886 [2020-08-19 00:25:06,747 INFO L226 Difference]: Without dead ends: 564 [2020-08-19 00:25:06,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:25:06,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-08-19 00:25:06,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-08-19 00:25:06,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-08-19 00:25:06,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 861 transitions. [2020-08-19 00:25:06,850 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 861 transitions. Word has length 60 [2020-08-19 00:25:06,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:06,851 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 861 transitions. [2020-08-19 00:25:06,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 00:25:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 861 transitions. [2020-08-19 00:25:06,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-19 00:25:06,859 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:06,860 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:25:06,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 00:25:06,860 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:06,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:06,861 INFO L82 PathProgramCache]: Analyzing trace with hash 2117260534, now seen corresponding path program 1 times [2020-08-19 00:25:06,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:06,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082004885] [2020-08-19 00:25:06,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:07,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:07,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:07,179 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:25:07,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082004885] [2020-08-19 00:25:07,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:25:07,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 00:25:07,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568247818] [2020-08-19 00:25:07,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 00:25:07,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:07,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 00:25:07,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:25:07,183 INFO L87 Difference]: Start difference. First operand 560 states and 861 transitions. Second operand 7 states. [2020-08-19 00:25:09,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:09,098 INFO L93 Difference]: Finished difference Result 1518 states and 2374 transitions. [2020-08-19 00:25:09,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 00:25:09,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-08-19 00:25:09,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:09,107 INFO L225 Difference]: With dead ends: 1518 [2020-08-19 00:25:09,107 INFO L226 Difference]: Without dead ends: 964 [2020-08-19 00:25:09,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-19 00:25:09,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-08-19 00:25:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 944. [2020-08-19 00:25:09,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-08-19 00:25:09,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1336 transitions. [2020-08-19 00:25:09,169 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1336 transitions. Word has length 154 [2020-08-19 00:25:09,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:09,170 INFO L479 AbstractCegarLoop]: Abstraction has 944 states and 1336 transitions. [2020-08-19 00:25:09,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 00:25:09,170 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1336 transitions. [2020-08-19 00:25:09,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-08-19 00:25:09,177 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:09,177 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:25:09,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 00:25:09,178 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:09,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:09,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1698067270, now seen corresponding path program 1 times [2020-08-19 00:25:09,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:09,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [186735244] [2020-08-19 00:25:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:09,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:09,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:09,544 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 00:25:09,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [186735244] [2020-08-19 00:25:09,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:25:09,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 00:25:09,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071001276] [2020-08-19 00:25:09,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 00:25:09,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:09,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 00:25:09,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:25:09,552 INFO L87 Difference]: Start difference. First operand 944 states and 1336 transitions. Second operand 8 states. [2020-08-19 00:25:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:11,471 INFO L93 Difference]: Finished difference Result 2490 states and 3798 transitions. [2020-08-19 00:25:11,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 00:25:11,473 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-08-19 00:25:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:11,490 INFO L225 Difference]: With dead ends: 2490 [2020-08-19 00:25:11,491 INFO L226 Difference]: Without dead ends: 1552 [2020-08-19 00:25:11,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-19 00:25:11,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2020-08-19 00:25:11,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1518. [2020-08-19 00:25:11,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2020-08-19 00:25:11,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2119 transitions. [2020-08-19 00:25:11,586 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2119 transitions. Word has length 200 [2020-08-19 00:25:11,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:11,588 INFO L479 AbstractCegarLoop]: Abstraction has 1518 states and 2119 transitions. [2020-08-19 00:25:11,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 00:25:11,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2119 transitions. [2020-08-19 00:25:11,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-08-19 00:25:11,604 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:11,604 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-19 00:25:11,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 00:25:11,604 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:11,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:11,605 INFO L82 PathProgramCache]: Analyzing trace with hash 328652488, now seen corresponding path program 1 times [2020-08-19 00:25:11,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:11,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [51890282] [2020-08-19 00:25:11,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:11,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:11,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:11,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 00:25:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:12,043 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 106 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-19 00:25:12,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [51890282] [2020-08-19 00:25:12,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:12,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-19 00:25:12,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8788085] [2020-08-19 00:25:12,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 00:25:12,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:12,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 00:25:12,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:25:12,047 INFO L87 Difference]: Start difference. First operand 1518 states and 2119 transitions. Second operand 8 states. [2020-08-19 00:25:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:13,690 INFO L93 Difference]: Finished difference Result 3412 states and 4693 transitions. [2020-08-19 00:25:13,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 00:25:13,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 219 [2020-08-19 00:25:13,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:13,700 INFO L225 Difference]: With dead ends: 3412 [2020-08-19 00:25:13,701 INFO L226 Difference]: Without dead ends: 1900 [2020-08-19 00:25:13,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-19 00:25:13,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2020-08-19 00:25:13,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1890. [2020-08-19 00:25:13,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1890 states. [2020-08-19 00:25:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2517 transitions. [2020-08-19 00:25:13,757 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2517 transitions. Word has length 219 [2020-08-19 00:25:13,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:13,758 INFO L479 AbstractCegarLoop]: Abstraction has 1890 states and 2517 transitions. [2020-08-19 00:25:13,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 00:25:13,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2517 transitions. [2020-08-19 00:25:13,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-08-19 00:25:13,764 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:13,764 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:25:13,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 00:25:13,765 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:13,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:13,765 INFO L82 PathProgramCache]: Analyzing trace with hash -56962879, now seen corresponding path program 1 times [2020-08-19 00:25:13,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:13,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812271558] [2020-08-19 00:25:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:13,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:13,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:13,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-19 00:25:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-08-19 00:25:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 193 proven. 194 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-19 00:25:14,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812271558] [2020-08-19 00:25:14,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:14,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 00:25:14,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496149587] [2020-08-19 00:25:14,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 00:25:14,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:14,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 00:25:14,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:25:14,419 INFO L87 Difference]: Start difference. First operand 1890 states and 2517 transitions. Second operand 9 states. [2020-08-19 00:25:16,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:16,900 INFO L93 Difference]: Finished difference Result 3677 states and 4968 transitions. [2020-08-19 00:25:16,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 00:25:16,900 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 303 [2020-08-19 00:25:16,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:16,910 INFO L225 Difference]: With dead ends: 3677 [2020-08-19 00:25:16,910 INFO L226 Difference]: Without dead ends: 1930 [2020-08-19 00:25:16,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-08-19 00:25:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2020-08-19 00:25:16,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1882. [2020-08-19 00:25:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1882 states. [2020-08-19 00:25:16,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2280 transitions. [2020-08-19 00:25:16,978 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2280 transitions. Word has length 303 [2020-08-19 00:25:16,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:16,979 INFO L479 AbstractCegarLoop]: Abstraction has 1882 states and 2280 transitions. [2020-08-19 00:25:16,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 00:25:16,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2280 transitions. [2020-08-19 00:25:16,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2020-08-19 00:25:16,989 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:16,991 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-08-19 00:25:16,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 00:25:16,991 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:16,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:16,992 INFO L82 PathProgramCache]: Analyzing trace with hash -48667167, now seen corresponding path program 1 times [2020-08-19 00:25:16,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:16,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603218413] [2020-08-19 00:25:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:17,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:17,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:17,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:25:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:17,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 00:25:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:17,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-19 00:25:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:17,506 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 438 proven. 11 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-08-19 00:25:17,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603218413] [2020-08-19 00:25:17,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:17,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 00:25:17,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681803189] [2020-08-19 00:25:17,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 00:25:17,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:17,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 00:25:17,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:25:17,516 INFO L87 Difference]: Start difference. First operand 1882 states and 2280 transitions. Second operand 9 states. [2020-08-19 00:25:21,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:21,795 INFO L93 Difference]: Finished difference Result 5238 states and 6410 transitions. [2020-08-19 00:25:21,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-19 00:25:21,796 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 438 [2020-08-19 00:25:21,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:21,812 INFO L225 Difference]: With dead ends: 5238 [2020-08-19 00:25:21,813 INFO L226 Difference]: Without dead ends: 3356 [2020-08-19 00:25:21,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2020-08-19 00:25:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2020-08-19 00:25:21,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 2438. [2020-08-19 00:25:21,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2438 states. [2020-08-19 00:25:21,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 2779 transitions. [2020-08-19 00:25:21,882 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 2779 transitions. Word has length 438 [2020-08-19 00:25:21,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:21,883 INFO L479 AbstractCegarLoop]: Abstraction has 2438 states and 2779 transitions. [2020-08-19 00:25:21,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 00:25:21,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 2779 transitions. [2020-08-19 00:25:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2020-08-19 00:25:21,896 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:21,897 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:25:21,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 00:25:21,897 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:21,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:21,898 INFO L82 PathProgramCache]: Analyzing trace with hash -347726080, now seen corresponding path program 1 times [2020-08-19 00:25:21,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:21,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636288833] [2020-08-19 00:25:21,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:22,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:22,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:22,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:25:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:22,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 00:25:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:22,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-19 00:25:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:22,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-08-19 00:25:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 668 proven. 209 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2020-08-19 00:25:22,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636288833] [2020-08-19 00:25:22,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:22,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 00:25:22,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439941798] [2020-08-19 00:25:22,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 00:25:22,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:22,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 00:25:22,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-08-19 00:25:22,925 INFO L87 Difference]: Start difference. First operand 2438 states and 2779 transitions. Second operand 10 states. [2020-08-19 00:25:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:25,784 INFO L93 Difference]: Finished difference Result 5701 states and 6650 transitions. [2020-08-19 00:25:25,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-19 00:25:25,785 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 558 [2020-08-19 00:25:25,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:25,799 INFO L225 Difference]: With dead ends: 5701 [2020-08-19 00:25:25,800 INFO L226 Difference]: Without dead ends: 3400 [2020-08-19 00:25:25,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-08-19 00:25:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2020-08-19 00:25:25,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3174. [2020-08-19 00:25:25,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3174 states. [2020-08-19 00:25:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 3495 transitions. [2020-08-19 00:25:25,870 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 3495 transitions. Word has length 558 [2020-08-19 00:25:25,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:25,871 INFO L479 AbstractCegarLoop]: Abstraction has 3174 states and 3495 transitions. [2020-08-19 00:25:25,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 00:25:25,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 3495 transitions. [2020-08-19 00:25:25,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-08-19 00:25:25,888 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:25,888 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-08-19 00:25:25,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 00:25:25,889 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:25,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:25,889 INFO L82 PathProgramCache]: Analyzing trace with hash -229639858, now seen corresponding path program 1 times [2020-08-19 00:25:25,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:25,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240492906] [2020-08-19 00:25:25,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:26,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:26,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:26,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:25:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:26,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 00:25:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:26,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-08-19 00:25:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:26,880 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 439 proven. 136 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2020-08-19 00:25:26,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240492906] [2020-08-19 00:25:26,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:26,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 00:25:26,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260500821] [2020-08-19 00:25:26,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 00:25:26,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:26,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 00:25:26,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-19 00:25:26,882 INFO L87 Difference]: Start difference. First operand 3174 states and 3495 transitions. Second operand 10 states. [2020-08-19 00:25:29,127 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-08-19 00:25:29,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:29,779 INFO L93 Difference]: Finished difference Result 5994 states and 6643 transitions. [2020-08-19 00:25:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-19 00:25:29,779 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 591 [2020-08-19 00:25:29,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:29,791 INFO L225 Difference]: With dead ends: 5994 [2020-08-19 00:25:29,791 INFO L226 Difference]: Without dead ends: 3192 [2020-08-19 00:25:29,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2020-08-19 00:25:29,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2020-08-19 00:25:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3178. [2020-08-19 00:25:29,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-19 00:25:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3486 transitions. [2020-08-19 00:25:29,865 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3486 transitions. Word has length 591 [2020-08-19 00:25:29,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:29,866 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3486 transitions. [2020-08-19 00:25:29,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 00:25:29,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3486 transitions. [2020-08-19 00:25:29,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2020-08-19 00:25:29,874 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:29,875 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2020-08-19 00:25:29,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 00:25:29,875 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:29,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:29,876 INFO L82 PathProgramCache]: Analyzing trace with hash -278736799, now seen corresponding path program 2 times [2020-08-19 00:25:29,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:29,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021054056] [2020-08-19 00:25:29,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:30,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:30,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:30,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:25:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:30,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 00:25:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:30,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-08-19 00:25:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:30,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-08-19 00:25:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 609 proven. 140 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2020-08-19 00:25:30,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021054056] [2020-08-19 00:25:30,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:30,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 00:25:30,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004167234] [2020-08-19 00:25:30,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 00:25:30,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:30,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 00:25:30,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:25:30,914 INFO L87 Difference]: Start difference. First operand 3178 states and 3486 transitions. Second operand 9 states. [2020-08-19 00:25:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:33,153 INFO L93 Difference]: Finished difference Result 6354 states and 6982 transitions. [2020-08-19 00:25:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 00:25:33,153 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 701 [2020-08-19 00:25:33,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:33,166 INFO L225 Difference]: With dead ends: 6354 [2020-08-19 00:25:33,166 INFO L226 Difference]: Without dead ends: 3364 [2020-08-19 00:25:33,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2020-08-19 00:25:33,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2020-08-19 00:25:33,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 3178. [2020-08-19 00:25:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2020-08-19 00:25:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 3484 transitions. [2020-08-19 00:25:33,237 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 3484 transitions. Word has length 701 [2020-08-19 00:25:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:33,238 INFO L479 AbstractCegarLoop]: Abstraction has 3178 states and 3484 transitions. [2020-08-19 00:25:33,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 00:25:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 3484 transitions. [2020-08-19 00:25:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2020-08-19 00:25:33,246 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:33,246 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:25:33,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 00:25:33,247 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:33,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:33,247 INFO L82 PathProgramCache]: Analyzing trace with hash -638310518, now seen corresponding path program 1 times [2020-08-19 00:25:33,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:33,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086076470] [2020-08-19 00:25:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:33,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:33,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:33,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:25:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:33,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 00:25:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:33,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-19 00:25:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:33,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2020-08-19 00:25:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1398 backedges. 616 proven. 140 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2020-08-19 00:25:34,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086076470] [2020-08-19 00:25:34,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:34,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 00:25:34,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406784521] [2020-08-19 00:25:34,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 00:25:34,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:34,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 00:25:34,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-19 00:25:34,648 INFO L87 Difference]: Start difference. First operand 3178 states and 3484 transitions. Second operand 10 states. [2020-08-19 00:25:37,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:37,969 INFO L93 Difference]: Finished difference Result 6540 states and 7200 transitions. [2020-08-19 00:25:37,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-19 00:25:37,973 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 708 [2020-08-19 00:25:37,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:37,984 INFO L225 Difference]: With dead ends: 6540 [2020-08-19 00:25:37,985 INFO L226 Difference]: Without dead ends: 3552 [2020-08-19 00:25:37,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-08-19 00:25:37,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2020-08-19 00:25:38,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3548. [2020-08-19 00:25:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3548 states. [2020-08-19 00:25:38,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3548 states to 3548 states and 3869 transitions. [2020-08-19 00:25:38,050 INFO L78 Accepts]: Start accepts. Automaton has 3548 states and 3869 transitions. Word has length 708 [2020-08-19 00:25:38,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:38,051 INFO L479 AbstractCegarLoop]: Abstraction has 3548 states and 3869 transitions. [2020-08-19 00:25:38,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 00:25:38,051 INFO L276 IsEmpty]: Start isEmpty. Operand 3548 states and 3869 transitions. [2020-08-19 00:25:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2020-08-19 00:25:38,059 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:38,059 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:25:38,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 00:25:38,060 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:38,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:38,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1537329314, now seen corresponding path program 1 times [2020-08-19 00:25:38,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:38,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775786345] [2020-08-19 00:25:38,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:38,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:38,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:38,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:25:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:38,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 00:25:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:38,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-19 00:25:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:38,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-19 00:25:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:38,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 763 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-08-19 00:25:38,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775786345] [2020-08-19 00:25:38,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:38,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-19 00:25:38,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377517152] [2020-08-19 00:25:38,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 00:25:38,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:38,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 00:25:38,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:25:38,843 INFO L87 Difference]: Start difference. First operand 3548 states and 3869 transitions. Second operand 7 states. [2020-08-19 00:25:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:40,177 INFO L93 Difference]: Finished difference Result 8032 states and 8890 transitions. [2020-08-19 00:25:40,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 00:25:40,177 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 734 [2020-08-19 00:25:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:40,192 INFO L225 Difference]: With dead ends: 8032 [2020-08-19 00:25:40,193 INFO L226 Difference]: Without dead ends: 4674 [2020-08-19 00:25:40,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-08-19 00:25:40,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4674 states. [2020-08-19 00:25:40,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4674 to 4292. [2020-08-19 00:25:40,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-19 00:25:40,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4750 transitions. [2020-08-19 00:25:40,278 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4750 transitions. Word has length 734 [2020-08-19 00:25:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:40,279 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4750 transitions. [2020-08-19 00:25:40,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 00:25:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4750 transitions. [2020-08-19 00:25:40,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2020-08-19 00:25:40,289 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:40,290 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:25:40,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 00:25:40,290 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:40,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:40,291 INFO L82 PathProgramCache]: Analyzing trace with hash -583849898, now seen corresponding path program 1 times [2020-08-19 00:25:40,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:40,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230234980] [2020-08-19 00:25:40,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:40,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:40,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:40,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:25:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:40,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 00:25:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:40,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-19 00:25:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:40,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-08-19 00:25:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:40,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2020-08-19 00:25:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1856 backedges. 327 proven. 6 refuted. 0 times theorem prover too weak. 1523 trivial. 0 not checked. [2020-08-19 00:25:41,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230234980] [2020-08-19 00:25:41,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:41,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-19 00:25:41,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633881349] [2020-08-19 00:25:41,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 00:25:41,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:41,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 00:25:41,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 00:25:41,061 INFO L87 Difference]: Start difference. First operand 4292 states and 4750 transitions. Second operand 5 states. [2020-08-19 00:25:42,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:42,239 INFO L93 Difference]: Finished difference Result 4296 states and 4753 transitions. [2020-08-19 00:25:42,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 00:25:42,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 789 [2020-08-19 00:25:42,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:42,251 INFO L225 Difference]: With dead ends: 4296 [2020-08-19 00:25:42,251 INFO L226 Difference]: Without dead ends: 4294 [2020-08-19 00:25:42,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-19 00:25:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2020-08-19 00:25:42,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 4292. [2020-08-19 00:25:42,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4292 states. [2020-08-19 00:25:42,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 4747 transitions. [2020-08-19 00:25:42,321 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 4747 transitions. Word has length 789 [2020-08-19 00:25:42,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:42,322 INFO L479 AbstractCegarLoop]: Abstraction has 4292 states and 4747 transitions. [2020-08-19 00:25:42,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 00:25:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 4747 transitions. [2020-08-19 00:25:42,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2020-08-19 00:25:42,334 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:42,335 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2020-08-19 00:25:42,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-19 00:25:42,335 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:42,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:42,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1874704500, now seen corresponding path program 1 times [2020-08-19 00:25:42,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:42,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109843102] [2020-08-19 00:25:42,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:42,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:42,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:42,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:25:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:42,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 00:25:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:42,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-19 00:25:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:42,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-19 00:25:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:42,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-19 00:25:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:42,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-19 00:25:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:43,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 382 proven. 7 refuted. 0 times theorem prover too weak. 1997 trivial. 0 not checked. [2020-08-19 00:25:43,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109843102] [2020-08-19 00:25:43,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:43,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-19 00:25:43,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420354446] [2020-08-19 00:25:43,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 00:25:43,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:43,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 00:25:43,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 00:25:43,239 INFO L87 Difference]: Start difference. First operand 4292 states and 4747 transitions. Second operand 5 states. [2020-08-19 00:25:44,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:44,394 INFO L93 Difference]: Finished difference Result 9128 states and 10168 transitions. [2020-08-19 00:25:44,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 00:25:44,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 834 [2020-08-19 00:25:44,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:44,409 INFO L225 Difference]: With dead ends: 9128 [2020-08-19 00:25:44,409 INFO L226 Difference]: Without dead ends: 5026 [2020-08-19 00:25:44,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-19 00:25:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2020-08-19 00:25:44,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 3918. [2020-08-19 00:25:44,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3918 states. [2020-08-19 00:25:44,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 4287 transitions. [2020-08-19 00:25:44,485 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 4287 transitions. Word has length 834 [2020-08-19 00:25:44,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:44,486 INFO L479 AbstractCegarLoop]: Abstraction has 3918 states and 4287 transitions. [2020-08-19 00:25:44,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 00:25:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 4287 transitions. [2020-08-19 00:25:44,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2020-08-19 00:25:44,499 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:25:44,500 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 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] [2020-08-19 00:25:44,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-19 00:25:44,501 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:25:44,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:25:44,501 INFO L82 PathProgramCache]: Analyzing trace with hash -177347705, now seen corresponding path program 1 times [2020-08-19 00:25:44,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:25:44,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200996961] [2020-08-19 00:25:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:25:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:44,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:25:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:44,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-19 00:25:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:44,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:25:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:44,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 00:25:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-08-19 00:25:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:44,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-08-19 00:25:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:44,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2020-08-19 00:25:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:44,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-08-19 00:25:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:25:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2441 backedges. 379 proven. 28 refuted. 0 times theorem prover too weak. 2034 trivial. 0 not checked. [2020-08-19 00:25:45,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200996961] [2020-08-19 00:25:45,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:25:45,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-19 00:25:45,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057960009] [2020-08-19 00:25:45,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 00:25:45,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:25:45,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 00:25:45,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:25:45,220 INFO L87 Difference]: Start difference. First operand 3918 states and 4287 transitions. Second operand 8 states. [2020-08-19 00:25:48,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:25:48,024 INFO L93 Difference]: Finished difference Result 5032 states and 5532 transitions. [2020-08-19 00:25:48,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 00:25:48,031 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 845 [2020-08-19 00:25:48,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:25:48,033 INFO L225 Difference]: With dead ends: 5032 [2020-08-19 00:25:48,033 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 00:25:48,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-08-19 00:25:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 00:25:48,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 00:25:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 00:25:48,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 00:25:48,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 845 [2020-08-19 00:25:48,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:25:48,043 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 00:25:48,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 00:25:48,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 00:25:48,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 00:25:48,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-19 00:25:48,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 00:25:48,594 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 177 [2020-08-19 00:25:48,745 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 177 [2020-08-19 00:25:50,171 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 250 DAG size of output: 61 [2020-08-19 00:25:51,144 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 55 [2020-08-19 00:25:52,109 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 55 [2020-08-19 00:25:52,113 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-19 00:25:52,113 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-08-19 00:25:52,114 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-19 00:25:52,114 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-08-19 00:25:52,114 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-08-19 00:25:52,116 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-08-19 00:25:52,117 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-08-19 00:25:52,118 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-08-19 00:25:52,119 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-08-19 00:25:52,119 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-08-19 00:25:52,119 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-08-19 00:25:52,119 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,119 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,119 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,119 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-08-19 00:25:52,119 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-19 00:25:52,120 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-19 00:25:52,120 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-19 00:25:52,120 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-08-19 00:25:52,120 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-08-19 00:25:52,120 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-08-19 00:25:52,120 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,120 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,120 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,120 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-08-19 00:25:52,121 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-19 00:25:52,121 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-19 00:25:52,121 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-19 00:25:52,121 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-08-19 00:25:52,121 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-08-19 00:25:52,121 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-08-19 00:25:52,121 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-08-19 00:25:52,121 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-08-19 00:25:52,122 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,122 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,122 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,122 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,122 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-08-19 00:25:52,122 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-19 00:25:52,122 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-19 00:25:52,123 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-19 00:25:52,123 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-08-19 00:25:52,123 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-08-19 00:25:52,123 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-08-19 00:25:52,123 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-08-19 00:25:52,123 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,123 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,124 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,124 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-19 00:25:52,124 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-19 00:25:52,124 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-19 00:25:52,124 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-08-19 00:25:52,124 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-08-19 00:25:52,124 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-08-19 00:25:52,124 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-08-19 00:25:52,124 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-08-19 00:25:52,125 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,125 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,125 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,125 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-08-19 00:25:52,125 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-08-19 00:25:52,125 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-19 00:25:52,125 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-19 00:25:52,125 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-19 00:25:52,125 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-08-19 00:25:52,126 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse3 (= ~a15~0 |old(~a15~0)|)) (.cse1 (= ~a21~0 |old(~a21~0)|)) (.cse16 (= ~a24~0 1)) (.cse2 (= ~a12~0 |old(~a12~0)|)) (.cse8 (= 8 |old(~a15~0)|))) (let ((.cse10 (not (<= |old(~a15~0)| 8))) (.cse11 (not (<= 7 |old(~a21~0)|))) (.cse7 (= 8 |old(~a21~0)|)) (.cse5 (not (<= |old(~a15~0)| 6))) (.cse14 (not (<= |old(~a12~0)| 2))) (.cse12 (not .cse8)) (.cse13 (and .cse1 (= ~a15~0 8) .cse16 .cse2)) (.cse0 (= 5 |old(~a21~0)|)) (.cse4 (not (= |old(~a24~0)| 1))) (.cse15 (not (= 9 |old(~a15~0)|))) (.cse9 (and .cse1 .cse16 .cse2 .cse3)) (.cse6 (not (<= 12 |old(~a12~0)|)))) (and (or .cse0 (and (= ~a24~0 |old(~a24~0)|) .cse1 .cse2 .cse3) (and (or .cse4 .cse5 .cse6) (or .cse7 .cse5))) (or .cse8 .cse4 .cse9 .cse10 .cse11 (not (<= 7 |old(~a15~0)|))) (or .cse4 .cse12 .cse11 .cse13 .cse14) (or .cse0 .cse7 .cse8 .cse4 .cse9 .cse10) (or .cse4 .cse15 .cse9 .cse11) (or .cse7 .cse4 .cse5 .cse9 .cse14) (or .cse0 .cse4 .cse12 .cse6 .cse13) (or .cse0 .cse4 .cse15 .cse9 .cse6)))) [2020-08-19 00:25:52,126 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-08-19 00:25:52,126 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-08-19 00:25:52,126 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,126 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,126 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,127 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-19 00:25:52,127 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-19 00:25:52,127 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-19 00:25:52,127 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-08-19 00:25:52,127 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-08-19 00:25:52,127 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-08-19 00:25:52,127 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-08-19 00:25:52,127 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-08-19 00:25:52,127 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-08-19 00:25:52,128 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-08-19 00:25:52,129 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,129 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,129 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,129 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-08-19 00:25:52,129 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-19 00:25:52,129 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-19 00:25:52,129 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-19 00:25:52,129 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-08-19 00:25:52,129 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-08-19 00:25:52,130 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-08-19 00:25:52,130 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-08-19 00:25:52,130 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,130 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,130 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,130 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-08-19 00:25:52,130 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-19 00:25:52,130 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-19 00:25:52,130 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-19 00:25:52,131 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-08-19 00:25:52,131 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-08-19 00:25:52,131 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-08-19 00:25:52,131 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-08-19 00:25:52,131 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,131 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,131 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-08-19 00:25:52,131 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-19 00:25:52,131 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-19 00:25:52,132 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-08-19 00:25:52,132 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-08-19 00:25:52,132 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-08-19 00:25:52,132 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-08-19 00:25:52,132 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-08-19 00:25:52,132 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 166) no Hoare annotation was computed. [2020-08-19 00:25:52,132 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,132 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,133 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-08-19 00:25:52,133 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-19 00:25:52,133 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-19 00:25:52,133 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-08-19 00:25:52,133 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-08-19 00:25:52,133 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-08-19 00:25:52,133 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,133 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,133 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-08-19 00:25:52,134 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-08-19 00:25:52,134 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-19 00:25:52,134 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-19 00:25:52,134 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-08-19 00:25:52,134 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-08-19 00:25:52,134 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-08-19 00:25:52,134 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-08-19 00:25:52,134 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,134 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-08-19 00:25:52,135 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-19 00:25:52,136 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-08-19 00:25:52,137 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-08-19 00:25:52,138 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-08-19 00:25:52,138 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-08-19 00:25:52,138 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,138 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,138 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,138 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-08-19 00:25:52,138 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-08-19 00:25:52,138 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-19 00:25:52,138 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-19 00:25:52,139 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-08-19 00:25:52,140 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-08-19 00:25:52,141 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-19 00:25:52,141 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-19 00:25:52,141 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-19 00:25:52,141 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-08-19 00:25:52,141 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-19 00:25:52,141 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= ~a15~0 8) (= ~a24~0 1) (= 7 ~a21~0)) [2020-08-19 00:25:52,141 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-19 00:25:52,141 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-19 00:25:52,142 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= |old(~a24~0)| 1)) (and (= ~a15~0 8) (= ~a24~0 1) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a21~0)| 7)) (not (<= (+ |old(~a12~0)| 49) 0))) [2020-08-19 00:25:52,142 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-08-19 00:25:52,142 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (<= 7 ~a21~0)) (.cse2 (= ~a15~0 9)) (.cse5 (not (= ~a15~0 8))) (.cse8 (<= 12 ~a12~0)) (.cse6 (<= ~a15~0 8)) (.cse3 (<= ~a12~0 2)) (.cse1 (= ~a24~0 1)) (.cse7 (not (= 5 ~a21~0))) (.cse4 (= 8 |old(~a15~0)|)) (.cse9 (not (= ~a21~0 8))) (.cse10 (<= ~a15~0 6))) (or (not (= 7 |old(~a21~0)|)) (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse0 .cse3 .cse1 (= ~a15~0 |old(~a15~0)|)) (not .cse4) (and .cse0 .cse5 (<= 7 ~a15~0) .cse1 .cse6) (and .cse7 .cse8 .cse1 .cse2) (and .cse7 (or (and .cse5 .cse1 .cse6 .cse9) (and .cse8 .cse1 .cse6))) (and .cse4 .cse3 .cse1 .cse9 .cse10) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse7 .cse4 .cse9 .cse10))) [2020-08-19 00:25:52,142 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-08-19 00:25:52,142 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-08-19 00:25:52,142 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse0 (<= 7 ~a21~0)) (.cse2 (= ~a15~0 9)) (.cse5 (not (= ~a15~0 8))) (.cse8 (<= 12 ~a12~0)) (.cse6 (<= ~a15~0 8)) (.cse3 (<= ~a12~0 2)) (.cse1 (= ~a24~0 1)) (.cse7 (not (= 5 ~a21~0))) (.cse4 (= 8 |old(~a15~0)|)) (.cse9 (not (= ~a21~0 8))) (.cse10 (<= ~a15~0 6))) (or (not (= 7 |old(~a21~0)|)) (and .cse0 .cse1 .cse2) (not (= |old(~a24~0)| 1)) (and .cse0 .cse3 .cse1 (= ~a15~0 |old(~a15~0)|)) (not .cse4) (and .cse0 .cse5 (<= 7 ~a15~0) .cse1 .cse6) (and .cse7 .cse8 .cse1 .cse2) (and .cse7 (or (and .cse5 .cse1 .cse6 .cse9) (and .cse8 .cse1 .cse6))) (and .cse4 .cse3 .cse1 .cse9 .cse10) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse7 .cse4 .cse9 .cse10))) [2020-08-19 00:25:52,143 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-08-19 00:25:52,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 12:25:52 BoogieIcfgContainer [2020-08-19 00:25:52,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 00:25:52,166 INFO L168 Benchmark]: Toolchain (without parser) took 51595.69 ms. Allocated memory was 145.2 MB in the beginning and 1.0 GB in the end (delta: 897.6 MB). Free memory was 103.0 MB in the beginning and 281.5 MB in the end (delta: -178.4 MB). Peak memory consumption was 854.6 MB. Max. memory is 7.1 GB. [2020-08-19 00:25:52,167 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 00:25:52,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 896.27 ms. Allocated memory was 145.2 MB in the beginning and 207.6 MB in the end (delta: 62.4 MB). Free memory was 102.8 MB in the beginning and 170.5 MB in the end (delta: -67.6 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-08-19 00:25:52,168 INFO L168 Benchmark]: Boogie Preprocessor took 157.12 ms. Allocated memory is still 207.6 MB. Free memory was 170.5 MB in the beginning and 164.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2020-08-19 00:25:52,169 INFO L168 Benchmark]: RCFGBuilder took 1765.42 ms. Allocated memory was 207.6 MB in the beginning and 235.9 MB in the end (delta: 28.3 MB). Free memory was 164.4 MB in the beginning and 151.1 MB in the end (delta: 13.3 MB). Peak memory consumption was 75.4 MB. Max. memory is 7.1 GB. [2020-08-19 00:25:52,170 INFO L168 Benchmark]: TraceAbstraction took 48772.34 ms. Allocated memory was 235.9 MB in the beginning and 1.0 GB in the end (delta: 806.9 MB). Free memory was 151.1 MB in the beginning and 281.5 MB in the end (delta: -130.4 MB). Peak memory consumption was 812.0 MB. Max. memory is 7.1 GB. [2020-08-19 00:25:52,173 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 896.27 ms. Allocated memory was 145.2 MB in the beginning and 207.6 MB in the end (delta: 62.4 MB). Free memory was 102.8 MB in the beginning and 170.5 MB in the end (delta: -67.6 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.12 ms. Allocated memory is still 207.6 MB. Free memory was 170.5 MB in the beginning and 164.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1765.42 ms. Allocated memory was 207.6 MB in the beginning and 235.9 MB in the end (delta: 28.3 MB). Free memory was 164.4 MB in the beginning and 151.1 MB in the end (delta: 13.3 MB). Peak memory consumption was 75.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 48772.34 ms. Allocated memory was 235.9 MB in the beginning and 1.0 GB in the end (delta: 806.9 MB). Free memory was 151.1 MB in the beginning and 281.5 MB in the end (delta: -130.4 MB). Peak memory consumption was 812.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 166]: 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: 880]: Loop Invariant Derived loop invariant: (((((((((!(7 == \old(a21)) || ((7 <= a21 && a24 == 1) && a15 == 9)) || !(\old(a24) == 1)) || (((7 <= a21 && a12 <= 2) && a24 == 1) && a15 == \old(a15))) || !(8 == \old(a15))) || ((((7 <= a21 && !(a15 == 8)) && 7 <= a15) && a24 == 1) && a15 <= 8)) || (((!(5 == a21) && 12 <= a12) && a24 == 1) && a15 == 9)) || (!(5 == a21) && ((((!(a15 == 8) && a24 == 1) && a15 <= 8) && !(a21 == 8)) || ((12 <= a12 && a24 == 1) && a15 <= 8)))) || ((((8 == \old(a15) && a12 <= 2) && a24 == 1) && !(a21 == 8)) && a15 <= 6)) || !(\old(a12) + 49 <= 0)) || (((!(5 == a21) && 8 == \old(a15)) && !(a21 == 8)) && a15 <= 6) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 44.5s, OverallIterations: 14, TraceHistogramMax: 8, AutomataDifference: 33.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 389 SDtfs, 14124 SDslu, 546 SDs, 0 SdLazy, 18951 SolverSat, 3301 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 425 GetRequests, 231 SyntacticMatches, 3 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4292occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 2956 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 171 PreInvPairs, 235 NumberOfFragments, 602 HoareAnnotationTreeSize, 171 FomulaSimplifications, 71391 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 20632 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 7134 NumberOfCodeBlocks, 7134 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 7120 ConstructedInterpolants, 0 QuantifiedInterpolants, 11497809 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 13401/14345 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...