/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:51:37,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:51:37,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:51:37,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:51:37,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:51:37,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:51:37,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:51:37,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:51:37,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:51:37,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:51:37,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:51:37,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:51:37,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:51:37,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:51:37,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:51:37,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:51:37,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:51:37,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:51:37,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:51:37,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:51:37,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:51:37,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:51:37,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:51:37,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:51:37,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:51:37,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:51:37,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:51:37,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:51:37,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:51:37,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-21 23:51:37,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:51:37,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:51:37,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:51:37,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 23:51:37,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:51:37,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:51:37,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:51:37,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:51:37,544 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:51:37,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:51:37,544 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:51:37,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:51:37,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:51:37,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:51:37,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:51:37,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:51:37,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:51:37,546 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:51:37,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:51:37,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:51:37,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:51:37,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:51:37,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:51:37,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:51:37,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:51:37,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:51:37,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:51:37,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:51:37,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:51:37,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:51:37,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:51:37,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:51:37,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:51:37,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-08-21 23:51:37,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:51:37,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:51:37,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:51:37,932 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:51:37,935 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:51:37,937 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-08-21 23:51:38,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99a5adad4/a8ad399f00f64232ac09429c8e30656d/FLAGc40ee2097 [2020-08-21 23:51:38,639 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:51:38,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-08-21 23:51:38,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99a5adad4/a8ad399f00f64232ac09429c8e30656d/FLAGc40ee2097 [2020-08-21 23:51:38,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99a5adad4/a8ad399f00f64232ac09429c8e30656d [2020-08-21 23:51:38,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:51:38,979 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:51:38,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:51:38,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:51:38,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:51:38,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:51:38" (1/1) ... [2020-08-21 23:51:38,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e28bb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:38, skipping insertion in model container [2020-08-21 23:51:38,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:51:38" (1/1) ... [2020-08-21 23:51:38,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:51:39,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:51:39,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:51:39,611 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:51:39,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:51:39,804 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:51:39,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39 WrapperNode [2020-08-21 23:51:39,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:51:39,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:51:39,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:51:39,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:51:39,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39" (1/1) ... [2020-08-21 23:51:39,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39" (1/1) ... [2020-08-21 23:51:39,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39" (1/1) ... [2020-08-21 23:51:39,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39" (1/1) ... [2020-08-21 23:51:39,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39" (1/1) ... [2020-08-21 23:51:39,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39" (1/1) ... [2020-08-21 23:51:39,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39" (1/1) ... [2020-08-21 23:51:39,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:51:39,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:51:39,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:51:39,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:51:39,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:51:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:51:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:51:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 23:51:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:51:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 23:51:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:51:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:51:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 23:51:40,004 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:51:40,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:51:40,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:51:41,296 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:51:41,296 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 23:51:41,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:51:41 BoogieIcfgContainer [2020-08-21 23:51:41,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:51:41,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:51:41,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:51:41,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:51:41,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:51:38" (1/3) ... [2020-08-21 23:51:41,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5933483c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:51:41, skipping insertion in model container [2020-08-21 23:51:41,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:51:39" (2/3) ... [2020-08-21 23:51:41,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5933483c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:51:41, skipping insertion in model container [2020-08-21 23:51:41,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:51:41" (3/3) ... [2020-08-21 23:51:41,314 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label19.c [2020-08-21 23:51:41,326 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:51:41,335 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:51:41,353 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:51:41,386 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:51:41,387 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:51:41,387 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:51:41,387 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:51:41,387 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:51:41,388 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:51:41,388 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:51:41,388 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:51:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-21 23:51:41,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-08-21 23:51:41,425 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:51:41,427 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] [2020-08-21 23:51:41,428 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:51:41,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:51:41,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1418549242, now seen corresponding path program 1 times [2020-08-21 23:51:41,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:51:41,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233958138] [2020-08-21 23:51:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:51:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:41,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:51:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:51:41,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233958138] [2020-08-21 23:51:41,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:51:41,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 23:51:41,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848343479] [2020-08-21 23:51:41,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 23:51:41,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:51:41,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 23:51:41,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 23:51:41,898 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-08-21 23:51:43,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:51:43,503 INFO L93 Difference]: Finished difference Result 596 states and 1022 transitions. [2020-08-21 23:51:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 23:51:43,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-08-21 23:51:43,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:51:43,522 INFO L225 Difference]: With dead ends: 596 [2020-08-21 23:51:43,522 INFO L226 Difference]: Without dead ends: 302 [2020-08-21 23:51:43,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:51:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-08-21 23:51:43,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-08-21 23:51:43,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-08-21 23:51:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 448 transitions. [2020-08-21 23:51:43,610 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 448 transitions. Word has length 35 [2020-08-21 23:51:43,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:51:43,611 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 448 transitions. [2020-08-21 23:51:43,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 23:51:43,611 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 448 transitions. [2020-08-21 23:51:43,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-08-21 23:51:43,616 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:51:43,616 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:51:43,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:51:43,617 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:51:43,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:51:43,618 INFO L82 PathProgramCache]: Analyzing trace with hash -945859230, now seen corresponding path program 1 times [2020-08-21 23:51:43,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:51:43,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041557878] [2020-08-21 23:51:43,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:51:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:43,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:51:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:43,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:51:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 23:51:43,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041557878] [2020-08-21 23:51:43,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:51:43,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 23:51:43,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345117929] [2020-08-21 23:51:43,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:51:43,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:51:43,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:51:43,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:51:43,908 INFO L87 Difference]: Start difference. First operand 296 states and 448 transitions. Second operand 7 states. [2020-08-21 23:51:46,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:51:46,222 INFO L93 Difference]: Finished difference Result 1462 states and 2300 transitions. [2020-08-21 23:51:46,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:51:46,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-08-21 23:51:46,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:51:46,232 INFO L225 Difference]: With dead ends: 1462 [2020-08-21 23:51:46,233 INFO L226 Difference]: Without dead ends: 1172 [2020-08-21 23:51:46,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:51:46,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2020-08-21 23:51:46,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 876. [2020-08-21 23:51:46,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2020-08-21 23:51:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1308 transitions. [2020-08-21 23:51:46,324 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1308 transitions. Word has length 105 [2020-08-21 23:51:46,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:51:46,325 INFO L479 AbstractCegarLoop]: Abstraction has 876 states and 1308 transitions. [2020-08-21 23:51:46,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:51:46,326 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1308 transitions. [2020-08-21 23:51:46,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-21 23:51:46,331 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:51:46,331 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:51:46,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:51:46,332 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:51:46,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:51:46,332 INFO L82 PathProgramCache]: Analyzing trace with hash -969660742, now seen corresponding path program 1 times [2020-08-21 23:51:46,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:51:46,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1020908554] [2020-08-21 23:51:46,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:51:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:46,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:51:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:46,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:51:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:46,540 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:51:46,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1020908554] [2020-08-21 23:51:46,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:51:46,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:51:46,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868440129] [2020-08-21 23:51:46,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:51:46,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:51:46,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:51:46,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:51:46,545 INFO L87 Difference]: Start difference. First operand 876 states and 1308 transitions. Second operand 8 states. [2020-08-21 23:51:48,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:51:48,575 INFO L93 Difference]: Finished difference Result 3095 states and 4845 transitions. [2020-08-21 23:51:48,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 23:51:48,579 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-08-21 23:51:48,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:51:48,601 INFO L225 Difference]: With dead ends: 3095 [2020-08-21 23:51:48,601 INFO L226 Difference]: Without dead ends: 2225 [2020-08-21 23:51:48,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-08-21 23:51:48,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2020-08-21 23:51:48,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 1776. [2020-08-21 23:51:48,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1776 states. [2020-08-21 23:51:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2592 transitions. [2020-08-21 23:51:48,723 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2592 transitions. Word has length 117 [2020-08-21 23:51:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:51:48,726 INFO L479 AbstractCegarLoop]: Abstraction has 1776 states and 2592 transitions. [2020-08-21 23:51:48,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:51:48,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2592 transitions. [2020-08-21 23:51:48,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-08-21 23:51:48,738 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:51:48,739 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:51:48,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:51:48,739 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:51:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:51:48,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1119643437, now seen corresponding path program 1 times [2020-08-21 23:51:48,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:51:48,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570411163] [2020-08-21 23:51:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:51:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:48,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:51:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:48,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:51:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:48,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-21 23:51:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:49,078 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 56 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-21 23:51:49,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570411163] [2020-08-21 23:51:49,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:51:49,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 23:51:49,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025858131] [2020-08-21 23:51:49,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:51:49,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:51:49,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:51:49,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:51:49,082 INFO L87 Difference]: Start difference. First operand 1776 states and 2592 transitions. Second operand 7 states. [2020-08-21 23:51:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:51:50,523 INFO L93 Difference]: Finished difference Result 3715 states and 5444 transitions. [2020-08-21 23:51:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:51:50,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-08-21 23:51:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:51:50,540 INFO L225 Difference]: With dead ends: 3715 [2020-08-21 23:51:50,540 INFO L226 Difference]: Without dead ends: 1945 [2020-08-21 23:51:50,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:51:50,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2020-08-21 23:51:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1931. [2020-08-21 23:51:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2020-08-21 23:51:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2789 transitions. [2020-08-21 23:51:50,617 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2789 transitions. Word has length 204 [2020-08-21 23:51:50,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:51:50,618 INFO L479 AbstractCegarLoop]: Abstraction has 1931 states and 2789 transitions. [2020-08-21 23:51:50,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:51:50,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2789 transitions. [2020-08-21 23:51:50,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-08-21 23:51:50,623 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:51:50,624 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, 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] [2020-08-21 23:51:50,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:51:50,624 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:51:50,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:51:50,625 INFO L82 PathProgramCache]: Analyzing trace with hash -298640055, now seen corresponding path program 1 times [2020-08-21 23:51:50,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:51:50,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836455708] [2020-08-21 23:51:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:51:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:50,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:51:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:50,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:51:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:50,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 23:51:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:51,114 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 60 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 23:51:51,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836455708] [2020-08-21 23:51:51,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:51:51,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 23:51:51,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521358391] [2020-08-21 23:51:51,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 23:51:51,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:51:51,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 23:51:51,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:51:51,117 INFO L87 Difference]: Start difference. First operand 1931 states and 2789 transitions. Second operand 10 states. [2020-08-21 23:51:53,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:51:53,641 INFO L93 Difference]: Finished difference Result 4084 states and 6092 transitions. [2020-08-21 23:51:53,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-21 23:51:53,642 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 234 [2020-08-21 23:51:53,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:51:53,657 INFO L225 Difference]: With dead ends: 4084 [2020-08-21 23:51:53,657 INFO L226 Difference]: Without dead ends: 2275 [2020-08-21 23:51:53,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2020-08-21 23:51:53,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2020-08-21 23:51:53,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2090. [2020-08-21 23:51:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2090 states. [2020-08-21 23:51:53,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2912 transitions. [2020-08-21 23:51:53,734 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2912 transitions. Word has length 234 [2020-08-21 23:51:53,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:51:53,734 INFO L479 AbstractCegarLoop]: Abstraction has 2090 states and 2912 transitions. [2020-08-21 23:51:53,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 23:51:53,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2912 transitions. [2020-08-21 23:51:53,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-08-21 23:51:53,743 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:51:53,743 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:51:53,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:51:53,745 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:51:53,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:51:53,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1047580335, now seen corresponding path program 1 times [2020-08-21 23:51:53,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:51:53,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282219748] [2020-08-21 23:51:53,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:51:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:53,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:51:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:53,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:51:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:53,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 23:51:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:53,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-21 23:51:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:54,163 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-08-21 23:51:54,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282219748] [2020-08-21 23:51:54,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:51:54,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 23:51:54,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148747740] [2020-08-21 23:51:54,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:51:54,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:51:54,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:51:54,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:51:54,179 INFO L87 Difference]: Start difference. First operand 2090 states and 2912 transitions. Second operand 7 states. [2020-08-21 23:51:56,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:51:56,276 INFO L93 Difference]: Finished difference Result 4776 states and 6899 transitions. [2020-08-21 23:51:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:51:56,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2020-08-21 23:51:56,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:51:56,292 INFO L225 Difference]: With dead ends: 4776 [2020-08-21 23:51:56,292 INFO L226 Difference]: Without dead ends: 2835 [2020-08-21 23:51:56,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:51:56,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2020-08-21 23:51:56,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 2825. [2020-08-21 23:51:56,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2825 states. [2020-08-21 23:51:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3890 transitions. [2020-08-21 23:51:56,398 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3890 transitions. Word has length 274 [2020-08-21 23:51:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:51:56,399 INFO L479 AbstractCegarLoop]: Abstraction has 2825 states and 3890 transitions. [2020-08-21 23:51:56,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:51:56,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3890 transitions. [2020-08-21 23:51:56,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2020-08-21 23:51:56,408 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:51:56,408 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:51:56,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 23:51:56,409 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:51:56,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:51:56,410 INFO L82 PathProgramCache]: Analyzing trace with hash -2030676874, now seen corresponding path program 1 times [2020-08-21 23:51:56,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:51:56,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720475520] [2020-08-21 23:51:56,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:51:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:56,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:51:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:56,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:51:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:56,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 23:51:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:56,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-08-21 23:51:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:51:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 98 proven. 4 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-08-21 23:51:56,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720475520] [2020-08-21 23:51:56,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:51:56,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 23:51:56,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498985843] [2020-08-21 23:51:56,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 23:51:56,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:51:56,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 23:51:56,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-21 23:51:56,983 INFO L87 Difference]: Start difference. First operand 2825 states and 3890 transitions. Second operand 11 states. [2020-08-21 23:52:00,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:52:00,466 INFO L93 Difference]: Finished difference Result 6824 states and 9642 transitions. [2020-08-21 23:52:00,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-21 23:52:00,475 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 275 [2020-08-21 23:52:00,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:52:00,497 INFO L225 Difference]: With dead ends: 6824 [2020-08-21 23:52:00,498 INFO L226 Difference]: Without dead ends: 4148 [2020-08-21 23:52:00,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2020-08-21 23:52:00,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4148 states. [2020-08-21 23:52:00,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4148 to 3564. [2020-08-21 23:52:00,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-08-21 23:52:00,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 4917 transitions. [2020-08-21 23:52:00,618 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 4917 transitions. Word has length 275 [2020-08-21 23:52:00,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:52:00,619 INFO L479 AbstractCegarLoop]: Abstraction has 3564 states and 4917 transitions. [2020-08-21 23:52:00,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 23:52:00,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 4917 transitions. [2020-08-21 23:52:00,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-08-21 23:52:00,629 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:52:00,630 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:52:00,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 23:52:00,630 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:52:00,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:52:00,631 INFO L82 PathProgramCache]: Analyzing trace with hash -687767546, now seen corresponding path program 1 times [2020-08-21 23:52:00,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:52:00,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618403494] [2020-08-21 23:52:00,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:52:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:00,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:52:00,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:00,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:52:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:00,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-21 23:52:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:01,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-08-21 23:52:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:01,259 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 155 proven. 144 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-21 23:52:01,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618403494] [2020-08-21 23:52:01,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:52:01,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 23:52:01,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356041498] [2020-08-21 23:52:01,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 23:52:01,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:52:01,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 23:52:01,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-08-21 23:52:01,262 INFO L87 Difference]: Start difference. First operand 3564 states and 4917 transitions. Second operand 11 states. [2020-08-21 23:52:04,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:52:04,599 INFO L93 Difference]: Finished difference Result 7722 states and 10706 transitions. [2020-08-21 23:52:04,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-21 23:52:04,600 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 283 [2020-08-21 23:52:04,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:52:04,621 INFO L225 Difference]: With dead ends: 7722 [2020-08-21 23:52:04,622 INFO L226 Difference]: Without dead ends: 4307 [2020-08-21 23:52:04,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2020-08-21 23:52:04,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2020-08-21 23:52:04,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4146. [2020-08-21 23:52:04,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4146 states. [2020-08-21 23:52:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4146 states to 4146 states and 5674 transitions. [2020-08-21 23:52:04,750 INFO L78 Accepts]: Start accepts. Automaton has 4146 states and 5674 transitions. Word has length 283 [2020-08-21 23:52:04,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:52:04,750 INFO L479 AbstractCegarLoop]: Abstraction has 4146 states and 5674 transitions. [2020-08-21 23:52:04,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 23:52:04,751 INFO L276 IsEmpty]: Start isEmpty. Operand 4146 states and 5674 transitions. [2020-08-21 23:52:04,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-08-21 23:52:04,763 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:52:04,764 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:52:04,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 23:52:04,764 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:52:04,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:52:04,765 INFO L82 PathProgramCache]: Analyzing trace with hash 2026736261, now seen corresponding path program 1 times [2020-08-21 23:52:04,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:52:04,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397524516] [2020-08-21 23:52:04,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:52:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:04,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:52:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:04,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:52:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 23:52:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:05,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-08-21 23:52:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 157 proven. 172 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-21 23:52:05,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397524516] [2020-08-21 23:52:05,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:52:05,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 23:52:05,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964217198] [2020-08-21 23:52:05,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 23:52:05,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:52:05,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 23:52:05,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-08-21 23:52:05,476 INFO L87 Difference]: Start difference. First operand 4146 states and 5674 transitions. Second operand 11 states. [2020-08-21 23:52:08,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:52:08,923 INFO L93 Difference]: Finished difference Result 8308 states and 11483 transitions. [2020-08-21 23:52:08,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-21 23:52:08,924 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 320 [2020-08-21 23:52:08,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:52:08,951 INFO L225 Difference]: With dead ends: 8308 [2020-08-21 23:52:08,951 INFO L226 Difference]: Without dead ends: 4311 [2020-08-21 23:52:08,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2020-08-21 23:52:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4311 states. [2020-08-21 23:52:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 4295. [2020-08-21 23:52:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4295 states. [2020-08-21 23:52:09,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 5854 transitions. [2020-08-21 23:52:09,089 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 5854 transitions. Word has length 320 [2020-08-21 23:52:09,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:52:09,090 INFO L479 AbstractCegarLoop]: Abstraction has 4295 states and 5854 transitions. [2020-08-21 23:52:09,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 23:52:09,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 5854 transitions. [2020-08-21 23:52:09,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-08-21 23:52:09,106 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:52:09,106 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:52:09,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 23:52:09,107 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:52:09,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:52:09,107 INFO L82 PathProgramCache]: Analyzing trace with hash -569256943, now seen corresponding path program 1 times [2020-08-21 23:52:09,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:52:09,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525771245] [2020-08-21 23:52:09,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:52:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:09,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:52:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:09,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:52:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-21 23:52:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:09,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-08-21 23:52:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:09,641 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 92 proven. 6 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-08-21 23:52:09,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525771245] [2020-08-21 23:52:09,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:52:09,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 23:52:09,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009596542] [2020-08-21 23:52:09,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:52:09,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:52:09,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:52:09,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:52:09,646 INFO L87 Difference]: Start difference. First operand 4295 states and 5854 transitions. Second operand 9 states. [2020-08-21 23:52:12,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:52:12,132 INFO L93 Difference]: Finished difference Result 8910 states and 12332 transitions. [2020-08-21 23:52:12,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 23:52:12,133 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 342 [2020-08-21 23:52:12,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:52:12,165 INFO L225 Difference]: With dead ends: 8910 [2020-08-21 23:52:12,165 INFO L226 Difference]: Without dead ends: 4764 [2020-08-21 23:52:12,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2020-08-21 23:52:12,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2020-08-21 23:52:12,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 4738. [2020-08-21 23:52:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4738 states. [2020-08-21 23:52:12,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4738 states to 4738 states and 6409 transitions. [2020-08-21 23:52:12,312 INFO L78 Accepts]: Start accepts. Automaton has 4738 states and 6409 transitions. Word has length 342 [2020-08-21 23:52:12,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:52:12,312 INFO L479 AbstractCegarLoop]: Abstraction has 4738 states and 6409 transitions. [2020-08-21 23:52:12,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:52:12,313 INFO L276 IsEmpty]: Start isEmpty. Operand 4738 states and 6409 transitions. [2020-08-21 23:52:12,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-08-21 23:52:12,327 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:52:12,328 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:52:12,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 23:52:12,328 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:52:12,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:52:12,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1742025105, now seen corresponding path program 1 times [2020-08-21 23:52:12,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:52:12,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68646795] [2020-08-21 23:52:12,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:52:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:12,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:52:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:12,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:52:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:12,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-21 23:52:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:12,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-08-21 23:52:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 173 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-08-21 23:52:12,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68646795] [2020-08-21 23:52:12,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:52:12,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 23:52:12,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439798347] [2020-08-21 23:52:12,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:52:12,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:52:12,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:52:12,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:52:12,846 INFO L87 Difference]: Start difference. First operand 4738 states and 6409 transitions. Second operand 9 states. [2020-08-21 23:52:15,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:52:15,449 INFO L93 Difference]: Finished difference Result 10944 states and 14735 transitions. [2020-08-21 23:52:15,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 23:52:15,450 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 342 [2020-08-21 23:52:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:52:15,470 INFO L225 Difference]: With dead ends: 10944 [2020-08-21 23:52:15,470 INFO L226 Difference]: Without dead ends: 6355 [2020-08-21 23:52:15,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2020-08-21 23:52:15,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2020-08-21 23:52:15,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6347. [2020-08-21 23:52:15,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6347 states. [2020-08-21 23:52:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6347 states to 6347 states and 8305 transitions. [2020-08-21 23:52:15,613 INFO L78 Accepts]: Start accepts. Automaton has 6347 states and 8305 transitions. Word has length 342 [2020-08-21 23:52:15,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:52:15,613 INFO L479 AbstractCegarLoop]: Abstraction has 6347 states and 8305 transitions. [2020-08-21 23:52:15,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:52:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6347 states and 8305 transitions. [2020-08-21 23:52:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-08-21 23:52:15,626 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:52:15,627 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 23:52:15,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 23:52:15,628 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:52:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:52:15,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1313031034, now seen corresponding path program 1 times [2020-08-21 23:52:15,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:52:15,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150290126] [2020-08-21 23:52:15,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:52:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:15,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:52:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:15,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 23:52:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:15,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-21 23:52:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:15,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-08-21 23:52:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:52:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 81 proven. 21 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-08-21 23:52:16,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150290126] [2020-08-21 23:52:16,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:52:16,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 23:52:16,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931952624] [2020-08-21 23:52:16,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:52:16,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:52:16,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:52:16,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:52:16,012 INFO L87 Difference]: Start difference. First operand 6347 states and 8305 transitions. Second operand 8 states. [2020-08-21 23:52:17,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:52:17,616 INFO L93 Difference]: Finished difference Result 11665 states and 15407 transitions. [2020-08-21 23:52:17,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:52:17,616 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 347 [2020-08-21 23:52:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:52:17,617 INFO L225 Difference]: With dead ends: 11665 [2020-08-21 23:52:17,617 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 23:52:17,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:52:17,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 23:52:17,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 23:52:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 23:52:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 23:52:17,634 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 347 [2020-08-21 23:52:17,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:52:17,634 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 23:52:17,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:52:17,634 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 23:52:17,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 23:52:17,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 23:52:17,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 23:52:18,279 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 143 [2020-08-21 23:52:18,425 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 143 [2020-08-21 23:52:19,126 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 32 [2020-08-21 23:52:19,421 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 35 [2020-08-21 23:52:19,672 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 35 [2020-08-21 23:52:19,676 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:52:19,677 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-08-21 23:52:19,677 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:52:19,677 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-21 23:52:19,677 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,677 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,678 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,678 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,678 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,678 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,678 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-21 23:52:19,678 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-21 23:52:19,678 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-21 23:52:19,678 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-21 23:52:19,679 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-21 23:52:19,679 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-21 23:52:19,679 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-21 23:52:19,680 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-21 23:52:19,680 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-21 23:52:19,680 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-21 23:52:19,681 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-21 23:52:19,681 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,681 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,681 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,681 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,681 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,681 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-21 23:52:19,681 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-21 23:52:19,681 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-21 23:52:19,682 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-21 23:52:19,682 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-21 23:52:19,682 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-21 23:52:19,682 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-21 23:52:19,682 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-21 23:52:19,682 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-21 23:52:19,682 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-21 23:52:19,682 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-21 23:52:19,683 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-21 23:52:19,683 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-21 23:52:19,683 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2020-08-21 23:52:19,683 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-21 23:52:19,683 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,683 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,683 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,684 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,684 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,684 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-21 23:52:19,684 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-21 23:52:19,685 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-21 23:52:19,685 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-21 23:52:19,685 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-21 23:52:19,685 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-21 23:52:19,685 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-21 23:52:19,685 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-21 23:52:19,685 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-21 23:52:19,686 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-21 23:52:19,686 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,686 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,686 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,688 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,688 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,688 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-21 23:52:19,688 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-21 23:52:19,688 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-21 23:52:19,688 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-21 23:52:19,688 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-21 23:52:19,689 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-21 23:52:19,689 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-21 23:52:19,689 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-21 23:52:19,689 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-21 23:52:19,689 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-21 23:52:19,689 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-21 23:52:19,689 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-21 23:52:19,689 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-21 23:52:19,689 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,690 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,690 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,690 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,691 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,691 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-21 23:52:19,691 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-21 23:52:19,691 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-21 23:52:19,691 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-21 23:52:19,691 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-21 23:52:19,691 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-21 23:52:19,691 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-21 23:52:19,691 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-21 23:52:19,692 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-21 23:52:19,692 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,692 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,692 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,692 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,692 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,692 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,692 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,693 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-21 23:52:19,693 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-21 23:52:19,693 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-21 23:52:19,693 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-21 23:52:19,693 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-21 23:52:19,693 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-21 23:52:19,693 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-21 23:52:19,693 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-21 23:52:19,693 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-21 23:52:19,694 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-21 23:52:19,694 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-21 23:52:19,694 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-21 23:52:19,695 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-21 23:52:19,695 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,695 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,695 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,696 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,696 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-21 23:52:19,696 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,696 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,696 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-21 23:52:19,696 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-21 23:52:19,696 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-21 23:52:19,696 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-21 23:52:19,697 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-21 23:52:19,697 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-21 23:52:19,697 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-21 23:52:19,698 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-21 23:52:19,698 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-21 23:52:19,698 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-21 23:52:19,698 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-21 23:52:19,698 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-21 23:52:19,700 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-21 23:52:19,700 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,700 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,700 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,700 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,700 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,701 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,701 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-21 23:52:19,701 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-21 23:52:19,701 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-21 23:52:19,701 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-21 23:52:19,701 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-21 23:52:19,701 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-21 23:52:19,701 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-21 23:52:19,702 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-21 23:52:19,702 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-21 23:52:19,702 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-21 23:52:19,702 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-21 23:52:19,704 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) (.cse1 (not (= 14 ~a4~0))) (.cse2 (not (= ~a12~0 0)))) (and (or (= 7 |old(~a19~0)|) .cse0 .cse1 .cse2) (or .cse0 (= 4 |old(~a10~0)|) .cse1 (not (<= 1 |old(~a10~0)|)) .cse2) (or (not (<= 23 |old(~a1~0)|)) .cse0 .cse1 .cse2))) [2020-08-21 23:52:19,704 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-21 23:52:19,704 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-21 23:52:19,705 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-21 23:52:19,705 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,705 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,705 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,705 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,705 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,705 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,705 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-21 23:52:19,706 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-21 23:52:19,706 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-21 23:52:19,706 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-21 23:52:19,706 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-21 23:52:19,706 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-21 23:52:19,706 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-21 23:52:19,706 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-21 23:52:19,706 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-21 23:52:19,706 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-21 23:52:19,707 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-21 23:52:19,707 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-21 23:52:19,707 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-21 23:52:19,707 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,707 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,707 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,707 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,707 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,707 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,708 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-21 23:52:19,708 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-21 23:52:19,708 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-21 23:52:19,708 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-21 23:52:19,708 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-21 23:52:19,708 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-21 23:52:19,708 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-21 23:52:19,708 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-21 23:52:19,708 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-21 23:52:19,709 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-21 23:52:19,709 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-21 23:52:19,709 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-21 23:52:19,709 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,709 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,709 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,710 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,710 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,710 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-21 23:52:19,710 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-21 23:52:19,710 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-21 23:52:19,710 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-21 23:52:19,710 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-21 23:52:19,710 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-21 23:52:19,710 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-21 23:52:19,711 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-21 23:52:19,711 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-21 23:52:19,711 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-21 23:52:19,711 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-21 23:52:19,711 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-21 23:52:19,711 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-21 23:52:19,711 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:52:19,711 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 23 ~a1~0) (= 14 ~a4~0) (= ~a10~0 0) (= ~a12~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-08-21 23:52:19,711 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 23:52:19,712 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:52:19,712 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-08-21 23:52:19,712 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-21 23:52:19,712 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (<= 23 ~a1~0) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (not (= 7 ~a19~0)) (not (= ~a12~0 0)) (and (not (= ~a10~0 4)) (<= 1 ~a10~0))) [2020-08-21 23:52:19,712 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-21 23:52:19,712 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-21 23:52:19,713 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (<= 23 ~a1~0) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (= 0 |old(~a10~0)|)) (not (= 7 ~a19~0)) (not (= ~a12~0 0)) (and (not (= ~a10~0 4)) (<= 1 ~a10~0))) [2020-08-21 23:52:19,713 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-21 23:52:19,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:52:19 BoogieIcfgContainer [2020-08-21 23:52:19,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 23:52:19,763 INFO L168 Benchmark]: Toolchain (without parser) took 40778.64 ms. Allocated memory was 139.5 MB in the beginning and 724.6 MB in the end (delta: 585.1 MB). Free memory was 100.8 MB in the beginning and 269.7 MB in the end (delta: -168.9 MB). Peak memory consumption was 416.2 MB. Max. memory is 7.1 GB. [2020-08-21 23:52:19,763 INFO L168 Benchmark]: CDTParser took 2.66 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 23:52:19,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.95 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 168.2 MB in the end (delta: -67.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-08-21 23:52:19,770 INFO L168 Benchmark]: Boogie Preprocessor took 115.92 ms. Allocated memory is still 203.9 MB. Free memory was 168.2 MB in the beginning and 164.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-21 23:52:19,771 INFO L168 Benchmark]: RCFGBuilder took 1381.80 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 163.4 MB in the beginning and 179.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-08-21 23:52:19,773 INFO L168 Benchmark]: TraceAbstraction took 38448.00 ms. Allocated memory was 237.0 MB in the beginning and 724.6 MB in the end (delta: 487.6 MB). Free memory was 179.7 MB in the beginning and 269.7 MB in the end (delta: -90.0 MB). Peak memory consumption was 397.6 MB. Max. memory is 7.1 GB. [2020-08-21 23:52:19,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.66 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 824.95 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 168.2 MB in the end (delta: -67.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.92 ms. Allocated memory is still 203.9 MB. Free memory was 168.2 MB in the beginning and 164.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1381.80 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 163.4 MB in the beginning and 179.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38448.00 ms. Allocated memory was 237.0 MB in the beginning and 724.6 MB in the end (delta: 487.6 MB). Free memory was 179.7 MB in the beginning and 269.7 MB in the end (delta: -90.0 MB). Peak memory consumption was 397.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((!(23 <= \old(a1)) || 23 <= a1) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || !(14 == a4)) || !(0 == \old(a10))) || !(7 == a19)) || !(a12 == 0)) || (!(a10 == 4) && 1 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 36.2s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 29.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 356 SDtfs, 9717 SDslu, 542 SDs, 0 SdLazy, 16812 SolverSat, 2815 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 297 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6347occurred 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: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 1755 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 260 PreInvPairs, 344 NumberOfFragments, 241 HoareAnnotationTreeSize, 260 FomulaSimplifications, 28880 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7078 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2878 NumberOfCodeBlocks, 2878 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2866 ConstructedInterpolants, 0 QuantifiedInterpolants, 2583626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 2024/2606 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...